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FITS 2008 Volkswagen GTI

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Firestone Coil-Rite Air Helper Springs - Rear Axle

Item # F4176

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F4176 - Standard Duty Firestone Vehicle Suspension
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F4176 - Standard Duty Firestone Vehicle Suspension
Firestone Coil-Rite Air Helper Springs - Rear Axle Air Springs F4176
Vehicle Suspension F4176 - Standard Duty - Firestone
Firestone Vehicle Suspension - F4176
Firestone Rear Axle Suspension Enhancement - F4176
Firestone Air Springs Vehicle Suspension - F4176

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  • Firestone
  • Air Springs
  • Standard Duty
  • Rear Axle Suspension Enhancement
The best technical support and full vehicle suspension installation instructions. Lowest price GTI vehicle suspension guarantee and expert service. Volkswagen GTI, 2008 vehicle suspension by Firestone are available from etrailer.com. For expert service call 800-298-8924 to order your Firestone Coil-Rite Air Helper Springs - Rear Axle part number F4176, or order online at etrailer.com.


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  • Reviews (178)
  • Q & A (23)
  • Videos (1)
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2008 Volkswagen GTI - Firestone Coil-Rite Air Helper Springs - Rear Axle

For safety and stability, air springs are the perfect partner for your rear suspension when you are hauling heavy loads. Springs fit inside existing coil springs to help level your Volkswagen GTI, improve braking and handling, and reduce tire wear.


Features:

  • Provide extra support for your existing rear coil springs
    • Fit inside existing coil spring suspension on your Volkswagen GTI
  • Keep your Volkswagen GTI level when you are hauling a heavy load
    • Improve steering control and balance
    • Level your headlight beams
    • Reduce tire wear
  • Maintain even load distribution with air pressure, leveling off-center loads
    • Air bags adjust manually, side to side, with individual inflation valves
  • Enable more effective braking and handling
    • Work under heavy loading and adverse road conditions
  • Increase stability to promote a smoother ride and prevent bottoming out
  • Made of durable, elastic polyurethane for years of comfort and stability
  • Include all materials necessary for installation
    • Brackets, air springs, hardware, air line and separate valves for manual inflation
    • Switches and gauges, compressors, and air tanks (sold separately) are available for quick and easy air spring inflation/deflation from inside your Volkswagen GTI
  • Made in the USA


Specs:

  • Load-leveling capacity: at least 500 lbs (at most 1,000 lbs)
    • Coil-Rite springs will not increase your Volkswagen GTI's weight-carrying capacity. Do not exceed the manufacturer's recommended weight limit.
  • Adjustable air pressure: 5 psi to 35 psi
  • Limited lifetime warranty on air springs
  • 2-Year limited warranty on hardware


Firestone Coil-Rite Air Spring Basics

Firestone Coil-Rite springs fit inside your existing rear coil springs to maximize the effectiveness of your suspension system. The added cushion provided by the air springs allows your Volkswagen GTI to better handle a heavy load or trailer. Hauling heavy loads or towing a heavy trailer can make the rear of your Volkswagen GTI sag and the front end rise. This puts more strain on your rear axle and reduces contact between your front tires and the road, causing problems with braking, steering control and traction. By adding air springs to your rear suspension, you can help to level your Volkswagen GTI for more effective braking and handling under heavy loading or when you encounter adverse road conditions. The air springs also help to level your headlight beams and reduce wear on your tires.


Firestone Coil-Rite airline installation

Adjustable Air Pressure

The air pressure in your Coil-Rite springs can be adjusted manually, side to side, to compensate for off-center loads. A centered load improves the stability of your Volkswagen GTI by reducing body roll. The air springs will also help to absorb road shock and soften contact between your axle and frame. This prevents bottoming out, thus improving ride comfort. Route the air line tubing for the springs to your Volkswagen GTI's bumper to provide easy access to the manual inflation valves.


Firestone Coil-Rite air spring components

Air Spring Construction

Coil-Rite springs are constructed of durable, elastic polyurethane to ensure years of service. Single replacement springs (sold separately) are available for maintenance to an existing Coil-Rite kit.


Air Spring Installation

The Coil-Rite springs install inside your existing coil springs. The custom-fit springs attach to your Volkswagen GTI's spring seats.



W237604176 Firestone Coil Rite Air Bags - Rear Axle



F4176 Installation InstructionsInstallation Details F4176 Installation instructions

Video of Firestone Coil-Rite Air Helper Springs - Rear Axle


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Firestone Vehicle Suspension F4176 Review

Today we're going to review part number F4176. These are the Firestone Coil-Rite Air Helper Springs for the rear axle. This part number is a custom fit part number. It is designed to fit different models of the Volkswagen starting in 2007. What I do recommend is to go our website and under our fit guide put in your year and model of Volkswagen and it'll tell you if this part number would work for your vehicle. This will give you extra support for your existing rear coil spring. They are designed to fit inside your existing coil spring suspension on your vehicle.

You can collapse them to slide them into the coil springs. These will help keep your vehicle level when you're hauling a heavy load and that'll give you improved steering control and balance, level your headlight beams, also reduce the tire wear. They will also maintain even load distribution with air pressure when you fill them up so you can level any off-center loads. These air bags do adjust manually or side-to-side if you use individual inflation values. This will enable more effective braking and handling, so they work under heaving loading and adverse road conditions. They will also increase the stability to promote a smoother ride, prevent any bottoming out. As you can see they are made of a durable elastic polyurethane, gives you years of comfort stability.

This part number will include everything shown here on the table. All these materials will be necessary for installation. Basically over here you can see it has the heat shield with the two clamps. When these are installed one of these will be by the exhaust so you want to do install this heat shield to protect the heat from affecting one of those. It comes with the two air springs. It comes with 18' of air line to be run.

It's 1/4" overall diameter air line. It comes with the two inflation values and I've already put the hardware on those. It comes with the two plugs that are used when you go to install these, you put these plugs in them. It comes with these six zip ties which will help put up any of the excess air line you might have. Also we do offer switches, gauges, compressors, and air tanks that are sold separately that you can attach to this to make it quicker and easier to inflate these springs if you'd like, from inside your vehicle. These parts are made in the U.S.A. A few specs on them: the load leveling capacity is at least 500 pounds, at the most 1,000 pounds.

These Coil-Rite springs will not increase your vehicle's weight carrying capacity so you have to remember do not exceed the manufacturer's recommended weight limit on your vehicle. The adjustable air pressure on these is from 5 psi to 35 psi. These have a limited lifetime warranty on the air springs and a limited two year warranty on all the hardware. That should do it for the review on part number F4176, the Firestone Coil-Rite Air Helper Springs for the rear axle. .


Customer Reviews

Firestone Coil-Rite Air Helper Springs - Rear Axle - F4176

Average Customer Rating:  4.4 out of 5 stars   (178 Customer Reviews)

For safety and stability, air springs are the perfect partner for your rear suspension when you are hauling heavy loads. Springs fit inside existing coil springs to help level your vehicle, improve braking and handling, and reduce tire wear.

- F4176

by:

Volkswagen Jetta SportWagen


I purchased this product on the recommendation of a service writer from my local VW dealership. I carry a lot of tools and equipment in me Jetta Sportwagen for work. Shipping was super quick and follow up was excellent. I just installed the air bags yesterday with a friend. Very easy to install. One helpful suggestion, after the first attempt to stuff the deflated air bags in the spring we found it too flat and hard to get in. I suggested squeezing the top end round like an eggroll and putting a cable tie around it to hold it and then getting the remaining air out. It goes it much easier and no need to remove the bottom shock mount. Huge difference on the ride home! Ride height back to level with 350 lbs of equipment in the back. I highly recommend this product. 231481


Comments

A full year later and not a single problem. I havent had to add air since I set the bags up. About 11k miles of mostly city driving.

JimT - 11/04/2016

21757

- F4176

by:

2010 Volkswagen Jetta SportWagen


Easy installation; I replaced my worn shocks as well at the same time on my 2010 jetta sportwagon. Removing the shocks gives you a few more inches of room to slide in the assist bags. It was easier to slide them in after wiping the bags and spraying the coil springs with silicon. I routed the air lines through the frame and mounted the valves in the spare tire well. Much better ride especially when towing my 5x8 trailer. 110981


Comments

Can i ask what you used as a bracket to mount in the spare tire well? Did you plug the holes you drilled with anything?

-- comment by: Shane K - 01/12/2015

8570
Comments

- response for Shane K question - I did not use a bracket to mount the filler valves in spare tire well just used a drill bit slightly larger than valves and the tensioner nuts holds the filler valves in place no worries. Just be sure you mount the valves so that you can fill them when the spare is in place. I used silicon sealer around the edges so no air can get to the bare metal.

-- comment by: Brad S - 01/13/2015

8597

- F4176

by:


Used the Air Helper Springs on a VW Jetta to help when we put the 4 bike rack on it. Worked perfectly, kept us level when loaded and letting the air out gave us the ride when empty. Bike pump easily pumped them up when needed. I would recommend this product for anyone needing to control ride height under load or when towing to stiffen the suspension. We have had them installed for over a year. Way to go eTrailer! 240426


Comments

Continues to work well. Would recommend without reservation

Tim F - 03/09/2017

22663

- F4176

by:

Volkswagen Jetta SportWagen


Etrailer was fanatic there communication is great and follow thru Install was a bit harder then other reviews say it is as far as getting the air bags inside the coil springs .I ended up taking the coil springs off the car for install not hard just time .after air bag install the rest was a peace of cake .With 35 psi in the air bags car was a lot firmer rode better and handle better then stock .Still the vw sport wagon is weak for towing tong weight .But the air bags are a must have if you tow anything or even carrie a bike rack 105672


Comments

Still working Great i just check the air pressure every now and then and i keep towing a three rail dirt bike trailer with three bikes on it very happy with air bags

Daniel B - 10/30/2014

7499

- F4176

by:


The kit is easy to install and it works great! I would not tow a trailer with out it! 542994



- F4176

by:

2011 Volkswagen Jetta SportWagen


I just installed these Firestone Air Bags on my 2011 Jetta Sportwagen. I did it myself and it was easy! Just remove the tire... The bag slides in without even removing the shock. I'm towing a 13' Scamp trailer, and the lift is about 2" at 30 psi... The ride and steering are greatly improved! This product actually performs as advertised! 103418


Comments

I will pick up a scamp 13 type 2 this May in Backus, MN using the same as your TV. I would appreciate if you can give me some type of feedback regarding your jetta performance, towing wise and MPG. I will be coming from Southern CA.I opted for an electric brakes on my and installed a curt hitch. I am in the process of installing a curt brake controller and wiring ,all purchase from e- trailer. You help me decide to install the Firestone Air Bags to my TV and I will Install it myself too. thanks to you.

-- comment by: mariano L - 03/17/2014

3158

- F4176

by:

2016 Volkswagen Jetta


Great product. The instructions were clear and easy to understand. Shipping is very reasonable. 510383



- F4176

by:


Work good for a month and it break into the quick connect... 332834



- F4176

by:


The product does work, but for how long is the question. Installation was straightforward. I was very careful to make sure i had clean straight ends when i cut my tubing. After installation i filled up the air bag to half the rated PSI. Soap tested and test drove for 20mins. Filled the bags to 3/4 there rated and soap tested, test drove another 20 mins no leaks. My first trip with a trailer on the ball was 90 long and by the time i arrived one bag had leaked out where the hose pushes in. Do to space i had to cut the line to remove the bag remove the hose and then reinstall. The system does work. I'm just not a fan of quick connects. Due to the amount of work to install the bag i would like to see a more fail safe hose connection. 279882



- F4176

by:


It was tougher than the instruction stated. At 70 yrs. old I don't have the strength to get them through the coil. Problem solved, dropped the lower "A" arm and removed the coil spring, in it went. The second one only took about 15 min. With the lift and scooter on the car no longer scrapes backing out of the driveway. (8lbs.) inflation. 168679



- F4176

by:

2010 Volkswagen Sportswagen TDI


It took my auto mechanic 25 minutes to install the F4176 package in my 2010 Volkswagen Sportswagen TDI. All went smoothly and at about 10 PSI leveled the vehicle as wanted.The air bags were at a safe distance from the exhaust pipes. The mechanic is a AUDI/Volkswagen professional. 148991



- F4176

by:


Install easy if car is on a lift. Product design is good. Works as intended - no leaks, so far. Adds great support under load or trailering if inflated to specification. 59849



- F4108

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


I installed these on my 2014 Cadillac Escalade ESV. I pull a 29’ enclosed snowmobile trailer with a 7,000# rating. These help tremendously with sag and sway and make life safer and easier when trailering, particularly when dealing with a crosswind. Installation is a little bit of a knuckle-buster but can be done easily at home. 570838



- F4138

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Great product for Kia Sedona 2012 Towing my boat was heavy on car’s rear suspention. These airhelpers are great Easy to install 574073



- F4175

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Daz Ryte... Awesome!!! Really helps out the suspension while hauling my trailer... 569704



- F4150

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Overall, i like these bags a bunch!!! lifts beyond my expectations!! I carry a hitch mount 2 dirtbike carrier. My Armada suffers from severe squat and suspension bottom out to start with. with the dirtbike carrier, the truck felt as if the front wheels were lifting off the ground... and the carrier would drag upon entry to most driveways.. I will be trying out for the first time in about 3 days. So far, the ride is awesome!!! a lot better ride and control (which I did not expect). Installation does take some planning... do trial fit everything you can... that includes the air line pathway and the location of your air valve... I thought I had everything done and perfect but when I mounted my air valve into the hitch hardware, I couldn't air the valve up.. the hitch plate was too thick... I moved the valve to my thin (plastic) bumper... now works fine... see the pics... If there is something I would like to add, it would be the " Air Lift WirelessONE Compressor System for Air Helper Springs - Hand-Held Remote - Single Path Item # AL25870"... this would make a complete solution! But there is one BIG "don't like", the air bag valve does point the line straight down toward the ground... with this install, this is now the lowest part of my suspension... I do have a concern when traveling in areas where clearance would be an issue... other than that, I'm excited (over airbags right)! enjoy the pics! 547778



- F4135

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Works well. Does not leak once installed. Correctly. Is a bit tricky to get hoses cut exactly at 90 degrees (to avoid leaks). On 5th gen 4runner you can just jack up car and install air bags upside down (nipple down). No need to undo axle/shock. 427493


Comments

Still working a year later.

wraymond p - 08/31/2018

43031

- F4135

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


etrailer’s website is one of the easiest and best websites to navigate and place an order! They have lots of pictures and how to videos on almost every product I looked at which is super helpful. Their order process was simple. Their order shipping details was very well put together and made it super simple to track my order. I am extremely impressed with their customer service! We will order everything we may need from this website from here on out! 552047



- F4160

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Reviewing products through etrailer is easy. etrailer sells top quality products at very affordable pricing. What you get at etrailer that you can't find at other companies is the BEST customer service you can find. I started using etrailer when I had an issue with another Firestone distributor. When I called Firestone direct to get the parts I needed that the other vendor would not sell to me (or even acknowledge my existence) Firestone referred me to etrailer as their #1 distributor. Not only did I get the parts shipped direct from the manufacturer, but they arrived in 3 days. I have placed more than one order and without fail have had the best service. Thank you etrailer ! 548599



- F4186

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Good product so far. Have not hooked up the trailer on my suburban yet. Easy to install and good instructions. 557216



- F4146

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Bought them for my Jeep to help with stabilizing the rear end when towing. They do the job for a little while (a day). Then they LEAK! Sent factory photos of leakage with soapy water spray bubbling from metal neck. Got a new one - SAME PROBLEM. Just sold the Jeep, but took out the airbags first. It was the only problem my Jeep had. Didn't want to have the airbags involved in the sale. Poor quality, not made to prevent failures. Difficult to prove defect to factory. Would not recommend this product. One would be better off getting another brand consisting of large, dense rubber cushion. No air to leak. 417990



- F4155

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


I'm very happy with my Firestone Coil-Rite kit for my '06 Sienna. I added a "Tee" to join the bags together and routed the schrader valve to exit inside my fuel fill door. It was a little extra work, but well worth it as it's out of the weather and sight, and I don't have to scrabble around on the ground in the slop to check / adjust the pressure. I run 15 -17 lbs when I'm not hauling a load and that seems to help with body roll, and up to 25-28 psi fully loaded. The kit does the job it was intended for, and hasn't leaked a snif of air since I installed it a year ago. Three thumbs up! 350292


Comments

Two years out, and still happy as a clam. Just do it!

Cal P - 03/11/2018

35738

- F4134

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Very fast delivery! Great Prices! These were a snap to install (less than an hour) and worked perfectly to level truck/trailer. Already ordered from them again and will continue too anytime I need something. Thanks ETRAILER! 74630


Comments

Well.... right bag blew after one week. will contact etrailer on warrenty.... Might switch to rubber snubbers and leveling hitch instead. May have just got a bad one........

-- comment by: Auguat - 04/17/2013

1404

Thanks for the follow up. I see that you went with the Timbren kit instead, please let us know how you like it.

-- Patrick B - 4/25/2013


- F4174

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Overall, etrailer service and the instructional video were excellent, installation was easier than I thought, and performance has been very good. I installed these on my '07 RAV4. Quick delivery, excellent follow-up by etrailer. Having read other reviews, I was a bit apprehensive about the installation. It went much quicker and easier than I anticipated. No bruised knuckles, a few grunts, no cuss words. The video is very good and helped a lot. I jacked the car up until the wheels were off the ground, which gave a reasonable amount of room between the spring coils. The red plug popped out a few times but you could still squeeze the bag with one hand through the spring and then put the plug back in, which gave some laxity in the bag to help manipulate it. The exhaust was in the way on the right a bit but not really a big deal. I opted to install the tee fitting and routed the valve stem into the left rear, as per the video. I chose to install it in the "dimple" below the 12v plug present in my car. Be careful, though: if you put the stem in the exact center of the dimple, many tire fillers won't fit into the dimple, so install it offset to the bottom. Also, I routed the tubing through the rubber grommet (maybe 1' dia) in that space on the bottom towards the vehicle front. The bags seem pretty easy to inflate with an inexpensive 12v compressor. As for performance, they seem to do very well, cutting down some of the bounce when towing our pop-up trailer. 386041


Comments

Thanks for the follow-up: reviews at this point are much more useful than ones immediately after purchase. They’re working very well and we’re very happy with them. They do tend to squeak a bit when low on pressure and they do seem to leak a tiny amount over time but neither are a big deal. I would definitely get them again.

Ed L - 05/29/2018

39033

- F4150

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Quick ship, great help from etrailer staff in selecting product. Install was very easy (about an hour). If installing in cold weather it helps to keep the bags inside until just prior to install to make them easier to compress when inserting into the springs. Ride is much improved with these. 168697



- F4155

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


These were surprisingly easy to install using ramps and a floor jack and really helped with preventing our Sienna from bottoming-out when carrying heavy loads on the hitch mounted luggage carrier. Highly recommended. Be sure to watch the installation video on etailer! 295055



- F4118

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


I installed these on my 2014 Nissan Pathfinder, which despite being rated to tow 5,000lbs, really struggled under the tongue weight of my boat trailer. These airbags really made a difference when towing and only when speeding over speedbumps do I notice them in normal conditions. My only complaint is that the valve stem points down, which once hooked to the hose, sticks down nearly two inches and was routinely getting ripped off in the snow. I finally gave up the hose and just rolled under the car to increase the pressure (which I've only done once). The kit should really come with a 90* connector, but otherwise it works great. 497497



- F4118

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


I received my order and installed the Air Helper Springs the next day. I had the opportunity to fully test them yesterday. They were not difficult to install and the instructions were easy to follow. I do wish there had been a video for my particular vehicle since I’m not exactly sure my routing of the air line around the exhaust the best location. Time will tell. After hooking up my trailer I adjusted the air, best I could, since all my tire gauges start at 10 lbs and go up from there. I did get the rear of the Pathfinder as level as I could. A recommendation from etrailer on a good digital or analog gauge would have also been helpful. I did pick up a digital gauge today, works great. Thanks etrailer for a great products, instructions and your follow up email that answered my questions, 513109



- F4177

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


This is our second Ford Flex and the second one we've added these Firestone Coil-Rite rear spring assists. In the year since we had them installed we've moved using an 18' twin axle enclosed trailer packed to capacity, taken several modest trips (approx 1000 miles) and driven the Flex as a passenger car. I've had the air pressure set as high as 30 PSI when towing, and as low as 5 PSI for daily driving. They work great. They add just about 1" lift at the hitch receiver with pressure of 30 PSI and the car unloaded. With the trailer attached this works out to be just about level. When packed for a trip, I've used 10 PSI to 15 PSI depending upon what we've loaded into the back. Again, it keeps the back end from squatting and keeps the headlights aimed properly. I installed the kit using separate air valves for each side this time. I like this better than using a common filler. It seems to add a bit of "roll resistance" having each one filled separately. Our first Flex I used a common filler valve and didn't get this benefit. My only word of caution is to be careful when filling the air springs. It doesn't take a lot of air to get to the desired pressure so be careful not to over-inflate. Also, if you have a tire gauge with a "bleed down" valve, it works better than one without. Just as with filling, it doesn't take much depletion of air to drop the pressure significantly. A gauge with a bleeder allows you to draw off just a little air at a time. 334563



- F4155

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Installed on 06 Sienna. Bought these for towing our 16' boat. Had a mechanic buddy put the bags in and ran air lines myself. Had one initial leak but I recut the end of the air line and it works fine. Noticeable difference when inflated to 25 psi. Some slow pressure loss over 24 hrs but well within driving times needed. Overall excellent service from etrailers and a very good product so far. 133395



- F4170

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


bought this to offset trip gear weight surprised about a manufacture backorder but the folks at etrailer kept involved intill they could get me my product excellent service great product thanks for all your help 309212



- F4135

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Just installed the Firestone air bag system in my 2017 4Runner. After installing a 250lb aftermarket bumper the sag to the springs was just too much, I also tow a watercraft trailer so that would squash the springs even more, the simple solution is the Firestone air bag system. Install was easy. With my spare permamently out of the undercarriage I just used two existing holes to mount the valves. I think for what you get the price is a bit much, but you can look at it like the air bags will provide a service for hopefully years to come, so that is worth the price. 458968



- F4170

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Okay, first of all. I have had this type of air spring helper bag before on several vehicles so I'm fairly familiar with how they are setup and work. Ordered this kit, good pricing, fairly fast ship..... And then the fun began. I did watch a video on the install. Looked pretty straight forward but with these latest polyurethane bags it looked like it would be a challenge to just "push" these through the springs AND get your hands in there to connect them. Oh, well I gave it a shot and sure enough one of the brass L shaped fittings for the bag just snapped off in my hand! Etrailer did address this and sent me new lines. And I'll be honest here.... threw everything back in the box and let it set for another month. Okay, let's do it again, MY WAY, this time. I dropped the rear coils completely this time, easily fed in the bags with the lines PREATTACHED, put the coils back in place and finished up the rest of the install. It's up to you....but I think just dropping the coils completely takes less time and you'll end up with a neater install. Oh, and here's the best part....these things are awesome on these long wheelbase Hyundai Santa Fe's. These SUVs don't have enough springing in the back to begin with. If you pull a trailer or hall a lot of tools, etc., in the back, trust me, you will see "extra" tire wear because that rear suspension will be sitting on the snubbers a great deal of the time. By going from around 10 to 30 psi I have a great deal of control over both ride height and improved stability in tow and heavy haul situations. I would recommend them, just take your time on the install..... 287475


Comments

Well, they still work well, however they dont hold there pressure for more than a couple of weeks. Always checking them...adding air every few weeks

Darrel K - 08/25/2017

27567

- F4185

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Great for a small trailer/camper. 87037


Comments

How big of a trailer are you towing with your Ram and did this kit help?

-- comment by: Jason W - 01/13/2014

2564
Comments

The kit was okay for one trip. The lines keep coming off then I lose air. I have had to fix the lines four times now I gave up, dont know if there is a real fix to this.My trailer is 18 feet.Any help would be appreciated.Thank you.

-- comment by: charles - 01/23/2014

2626

The lines need to be cut very cleanly and perfectly square. If there a little crooked or rough, the fittings cannot seal to the line. If you are using a knife or box-cutter or side-cutters to cut the line, your fix may simply be a proper line cutting tool like parts F9009 or AL10530. Make sure when you push the line into the fitting, that you push it all the way in until it bottoms out.

-- Patrick B - 2/4/2014


- F4108

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Good product with a relative ease of installation with the right tools. Only improvement would be to add a Tee in to the air line so there is only one needle valve for adding air in to the system. 249275



- F4174

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Thanks to all of the folks who shared their observations on the installation of Firestone Air Helper Springs on Toyota RAV4s. Some of their suggestions made my life much easier. The Firestone instructions, as others observed, were pretty generic and were probably not written by a person who actually installed them on a RAV4. Here are a few things that I found useful: I found that the easiest way to cram the air bags into the coil springs was to flatten them like a pancake with the top and bottom surfaces collapsed onto each other and lash them in this state with a zip tie. Compressed this way you can push them thru the gap in the coil spring in the correct orientation so that when you release the zip tie they expand into the coil spring correctly. It helps to push them thru an opening just below the center of the coil spring so that the air bag ends up slightly below center touching the bottom plastic protective disk. It is really difficult to move the air bags up or down once they expand into the coil spring. I attached the air hose after the bag was in place. You can use a heat gun to warm the air hose enough to bend it so that it exits the lower control arm, turns 90 degrees, and runs along the back of the control arm without hanging down. As others noted the exhaust system presents special problems on the right side. I ended up routing the air line toward the brake and up to the upper control arm to stay away from the exhaust pipe. It's not clear what the best strategy is for routing the air lines. They seem pretty tough, but will likely be rubbing on something given all of the movement in the suspension. I'd suggest not cutting the air line and starting with the right side, which for me needed more air line length to keep away from the exhaust system. That way you will have enough air line to finish the right side and you can use the remainder on the left side, which will need less. I cut the line in half to begin with and barely had enough for the right side. All of the bits seem to be of high quality. The quick connect air fittings seem to seal well and grab tenaciously so you will have a very hard time removing them once you install them. Like a Chinese puzzle on steroids. Our trailer has around 440lb tongue weight and these have brought us back to level with a few psi to spare. We'll see how it goes over the road. Thanks to everyone who contributed ideas and suggestions. 161229



- F4155

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


This Firestone #F4155 air-bag product is excellent. The fit to my 2011 Toyota Sienna was just as described. I installed the bracket and the two air-fill valves in the jack compartment, easy to get to and out of the weather. etrailer has been a pleasure to deal with. 172005


Comments

Love the product. Had it installed by my favorite local Toyota dealer. Makes a nice difference towing our Park Liner Fiberglass Egg Camper. Would certainly recommend.

Bruce B - 02/01/2016

16645

- F4135

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Installed on a 2016 4Runner in conjunction with a 1-1/2" Daystar coil spring spacer. Since the coil spacer is hollow, I left one segment of the factory bump stop in place to compensate for and match the height of the spacer. I also added a Firestone T-fitting on the airline for a single inflation point and located the inflation valve next to my trailer plug wiring. Quite a pain to wrestle the coil back in place with the added height of the spacer, but that is no fault of the airbags; pry bar proved critical to wedge the coil back in place since I did not try the bottle jack between the frame and axle trick. After nearly a year, no leaks, bags hold air well. I put 25 psi in them for towing our travel trailer, or keep them at 10 psi for normal running around. I have also found them useful to prevent or at least reduce bottoming out the soft rear suspension that happens when off road driving with even just a couple hundred pounds in the back. Even at 25 psi they ride great and you wouldn't know they are back there at 10 psi. Highly recommend for the low cost and added versatility! 459855



- F4136

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Installation of the first air bag took me about 25 minutes, and the second one about 5 minutes. I heated the second air bag with a heat lamp to make it more flexible. I think my 2010 Prius drives better with them installed. 139888



- F4170

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Product is what you see on the web page and the videos exclent its idiot prove 411973



- F4150

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Bags came quick and as described. I'm a professional technician so install was pretty easy. It is a little tough getting the bags in the springs but with some patience they go in. Can't wait to hook up my travel trailer and see how well they work. 2010 Nissan Armada SE 116843


Comments

Hi Tommy,What was the difference in ride handling when you hooked up you TT? Do you think an amateur could install these without special tools? Thanks,Alvin

-- comment by: Alvin N - 07/01/2014

5235
Comments

Alvin, the ride was definitely better with the trailer hooked up after I installed the airbags. I run them at 10 psi normally and 25 with trailer hooked up. With no trailer the rear feels more planted to the road and towing it feels more stable. I still use leveling bars to help with the weight but I definitely recommend these if your going to tow. As for install its not difficult but just a pain to get them squeezed down and pushed through the springs. After that the hoses are simple push ins and just be sure to route them so they can move and away from the exhaust. Tom D.

-- comment by: Tom D - 07/01/2014

5243

- F4166

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Excellent product. Installed on a 2012 2x4 Nissan Pathfinder to stiffen rear end. We often load the vehicle with gear and a utility trailer and found it tends to squat a bit; the air bags solved that problem. Easy to install, but the instructions included with the units are incomplete as they omit inserting the support plates. However, the installation video on the etrailer website covers this and should be viewed. I was able to do the installation with the vehicle on the ground and without removing the wheels. I dropped the spare tire and jacked up one side at a time just to where the tire was almost off the ground, placed jack stands and worked from under the car. You really need to be able to put a lot of pressure on the deflated units to get them inside the coil springs. I found the best tool for doing this is a ball peen hammer; using the handle to push against the bags and the head for a good grip that allows pushing real hard without damage to your hand. 316982



- F4170

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


The F4170 kit does fit a 2009 Hyundai Santa Fe. However installation is not quite as simple as the video. In order to remove the jounce bumper and install the air bags on our All Wheel Drive the springs needed to be removed. The instructions show a 2" piece of air line at the bag and then a 90 degree union. Make that 1.5" and the union will not hit the top of the steel jounce bumper cup. Insted of a 7/16 inch hole for the lines, go bigger and put in a grommet so the line does not rub. I went to 5/8 inch and then used 3/8 fuel line to cover the air tubing. Protects it from getting cut and from heat at the muffler. I agree that the top spacers need work. No real retention or centering on top of the bag. I put RTV silicone on the spacer and then placed it on the air bag. It centered on the bag and it should stay put. When the vehicle is off the ground and the springs are at full extension, and the jounce bumper cup does not touch the spacer. With the bigger hole, the fuel line guard, and the RTV I hope the work for a while. If not the bags are lifetime warranty and the hardware has 2 years. 98925



- F4108

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


I am very satisfied with your products your service and your shipping is fast and reliable 125470



- F4177

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Once installed these did just what I hoped for raising the rear of the 2012 Ford Flex about 1 full inch under trailer load (at 30PSI in airbags). This is enough to make the car's headlights less annoying for oncoming traffic at night. I find that with about 10 PSI in the air bags and no trailer or luggage the vehicle has slightly more roll resistance which improves high speed stability, too. Very nice product. I attempted to install them but only frustrated myself. I took the car to a guy I trust and he did a great job with the installation. He ran the tubing to a central fill point as I also had ordered the "TEE" fitting. The fill fitting is right near the hitch receiver and very handy. It's nice to be able to fill both bags with just one fitting. 293864



- F4135

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


Install was easy on 2014 FJ Cruiser...pulled the wheels off, jacked it up a bit, and the axle dropped enough to allow room to fit the bags inside the springs. I will see how they perform when I hook up my trailer but they inflate quickly and I can see these will stop my vehicle from squatting when the cargo area and trailer are heavily loaded. Another excellent product offered by etrailer...thanks. 383916


Comments

After a year of regular use, these bags have been great. They keep my FJ level when towing and as a result steering while towing is vastly better.

Ryan G - 05/23/2018

38849

- F4138

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


So far so good, It's been installed for a month, carries the wheel chair with little or no dropping of the rear end. 439096



- F4155

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


I did not actually time the install but I believe it was less than an hour. I have been loading my 2008 Sienna very heavy when going on vacation. This last time my trailer hitch that I use to haul 5 bikes dragged leaving the driveway and was just a few inches off of the pavement when sitting on the level. I installed this system and tested the load with live body weight, I had a family visiting, they crawled into the van and it did not sag half as much as before. My next big trip is coming up in a week, so we will be giving it the full road test then. I recommend this product. 303574


Comments

I just came back from another trip and it worked well.Once installed it is easy to inflate and deflate as needed.

Don R - 10/11/2017

29046

- F4146

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


My review is only on the installation of these, and only on a 02-07 Jeep Liberty. To me, the instructions were VERY vague. The hardest part was running the air line. Instructions said to run it through the box frame and through the 3/8" hole in the top spring holder. Seriously? I fed the line though the hole and who knows where it is going. The only access hole near the springs is on the outside of the frame, and must too small. Well, I opened the hole a bit, painted it, and was able to get my finger in there to fish our the line. If I had a wire fish, I may have been able to fish it out without opening the hole. The other thing, drilling the 3/8" hole wasn't easy. The boomerang limited the amount that the axle would drop. Luckily, I found a short enough 3/8" drill in my assortment that was just long enough for the job. And still, it was a pain. I was wishing I had a right angle drill at that point. One last thing, it didn't state wear to put the heat shield. I figured where the exhaust is closest to the spring. Of course you have a curve there, but a little bending, I got it done. I am debating on putting some header tape in that area. 47084


Comments

Have u towed anything with these and have they helped. I have a 04 liberty and was looking for something to help with towing.

-- comment by: Billy - 07/15/2014

5649

- F4135

by:

Review from a similar Firestone Coil-Rite in Vehicle Suspension


I purchased this product to prevent rear suspension sag in my '99 4Runner while loaded with camping gear and towing a small boat. It's surprisingly easy to install, and it works very well! I'm very pleased with the purchase. And, as always, the customer service at etrailer was second to none! Shipping was fast, pricing was competitive, and the product was exactly as advertised. Thanks to the folks at etrailer! 218209


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Ask the Experts about this Firestone Vehicle Suspension
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  • Will Firestone Coil-Rite Air Helper Spring Kit # F4176 Fit a 2011 Volkswagen Jetta Sportwagen
  • The Firestone Coil-Rite Air Helper Spring Kit, part # F4176, is specified to fit the Volkswagen Jetta Sportwagen for model years 2009-2010, and 2012-2013. There is no fit confirmed for the 2011 model year. I spoke to a technical contact at Firestone who indicated that the manufacturer changed body styles after the 2010 year and did not complete the re-design in time for a 2011 model year to be test-fitted for this kit. It may fit but Firestone cannot confirm with certainty. We do offer...
    view full answer...

  • Suspension Enhancement Recommendation for 2014 Jetta Sportwagen
  • I want to start by thanking you again for ordering your hitch from etrailer.com. We truly appreciate your business. I spoke with my contact at Firestone and if the coil springs on your 2014 Jetta Sportwagen measure just over 3-1/2 inches in diameter and 7 inches in length when the springs are bearing the weight of the vehicle, the Coil-Rite Air Helper Springs, # F4176, will work for you. These air springs fit inside your existing coil springs and help to level your vehicle, improve braking/handling,...
    view full answer...

  • Do Coil Springs Have to Be Removed on 2009 Volkswagen Jetta SportWagen for Firestone Installation
  • No, you will not have to remove the coil spring in order to install the Firestone Coil-Rite Air Helper Springs, # F4176. I have included a link to the installation details for you to view so that you can see what is involved for a typical installation.
    view full answer...

  • How to Fix Sag when Towing with a 2013 Audi Q7
  • Although there are no suspension enhancement options, like part # F4176 or part # TDR1500DQ, that we carry for your 2013 Audi Q7, I do have a solution for you so that your towing setup will be level. What you will want to use is a Weight Distribution (WD) system. What a WD does is distribute the Tongue Weight (TW) of the trailer evenly among all of the axles of your Q7 and the trailer. This is actually the better way to go even if we had suspension enhancement available for your Q7. You...
    view full answer...

  • Installation Instruction Link and Durability of Firestone Coil-Rite Air Helper Springs # F4176
  • The Firestone Coil-Rite helper springs, # F4176, are made of an elastic polyurethane and not a regular hard plastic so they can move and flex with the vehicle suspension and will last for years provided they are inflated as specified in the instructions, linked for reference, and not overloaded.
    view full answer...

  • Will Firestone Coil-Rite Air Helper Part # F4176 Fit 2014 Volkswagen Jetta TDI Sedan
  • I spoke with my contact at Firestone and they said the Firestone Coil-Rite Air Helper Springs, part # F4176, are a fit for your 2014 Volkswagen Jetta TDI Sedan. These have an adjustable air pressure of 5 to 35 psi, and will help level your Jetta when hauling heavy loads. The air bags can be adjusted individually to compensate for uneven loads you may be carrying. To keep from having to manually inflate the air springs when you need them, I recommend the Firestone Dual Electric Air Command,...
    view full answer...

  • Alternatives for Trailer Hitches That Do Not Allow for the Use of a Weight Distribution System
  • I do have ways to help with trailer sway and vehicle sag on your 2013 Volkswagen Tiguan but none of the trailer hitch receivers they have for your vehicle are compatible with a weight distribution system. Load leveling is what Volkswagen calls what we refer to as weight distribution. A weight distribution system is never going to be required however, if the gross trailer weight (GTW) of your trailer is more than 50% of the gross vehicle weight rating (GVWR) for your vehicle, the use...
    view full answer...

  • Hitch Suspension Enhancement and Brake Controller Recommendation for a 2012 VW Golf TDI
  • You cannot safely modify a Class I hitch to match the capacities of a Class III hitch (even though my oddball uncle did somehow weld a Class III hitch opening on his Mazda Miata...NOT RECOMMENDED). Hitches are given capacities that generally reflect what the towing capacity of the vehicle they are installed on. Even if you did somehow reinforce a hitch to be stronger, the attachment points on the vehicle's frame can't be made stronger and this is typically the weak point. The Draw Tite...
    view full answer...

  • Diameter Of Air Line For Firestone Coil-Rite Air Helper System
  • The air line that is included in the Firestone Coil-Rite Air Helper Kit, part # F4176, is 1/4 inch diameter. If you wish to purchase more air line, we do carry the air line by itself, part # F0937. This is a 22 foot long section of red tubing. The Tee you could use to split one line into two is the Firestone Union Tee, part # F3025-1.
    view full answer...

  • Will Firestone Coil-Rite Rear Air Helper Springs Part # F4176 Fit 2013 Volkswagen Beetle Diesel
  • According to my research the 2013 Volkswagen Beetle diesel came with either a 1.6L or a 2.0L turbo diesel. The Firestone Coil-Rite Rear Air Helper Springs Part # F4176 will not fit the turbo-equipped Beetle. However, we do offer a similar kit from Firestone that will fit the turbo-equipped 2013 Beetle, part # F4175. This Firestone Coil-Rite kit includes all parts required for installation (with no drilling necessary) and allows for manual inflation of the air bags. If you wish, Firestone...
    view full answer...

  • Rear Air Bag Helper Springs for a 2015 Volkswagen GTI
  • Yes! The Firestone Coil-Rite rear helper springs # F4176 will fit your 2015 Volkswagen GTI. I double-checked the fit with Firestone. I have linked a video review of this system for you. To avoid having to find an air pump I also recommend adding an onboard compressor system # F2158 so you can adjust the air pressure from inside the vehicle.
    view full answer...

  • Will Firestone Coil-Rite Air Helper Part # F4176 Fit 2013 Volkswagen Jetta TDI Sedan
  • I spoke with my contact at Firestone and they said the Firestone Coil-Rite Air Helper Springs, part # F4176, are a fit for your 2013 Volkswagen Jetta TDI Sedan. These have an adjustable air pressure of 5 to 35 psi, and will help level your Jetta when hauling heavy loads. The air bags can be adjusted individually to compensate for uneven loads you may be carrying. To keep from having to manually inflate the air springs when you need them, I recommend the Firestone Dual Electric Air Command,...
    view full answer...

  • 2015 Jetta TDI Firestone Air Spring Compatibility
  • I reached out to my tech contact at Firestone and he let me know that the Firestone Coil-Rite Air Helper Springs - Rear Axle # F4176 are a fit for the TDI models as well. There was an exception for 2007-2010 where they did not fit, but the 2011-2017 TDI models do fit.
    view full answer...

  • How Long Will the Springs for a Firestone Coil-Rite System Last on a 2010 VW Jetta SportWagen
  • The Firestone Coil-Rite system, # F4176, if properly maintained, should last the life of the vehicle. The air springs themselves have a limited lifetime warranty and all the hardware has a 2 year limited warranty. Firestone does build their springs to last which is why they have a limited lifetime warranty.
    view full answer...

  • Will the SuperSprings Coil SumoSprings Fit a 2015 Volkswagen Passat TDI
  • The SuperSprings Coil SumoSprings, # CSS-1125, will fit your 2015 VW Passat TDI. You are correct that the Firestone airbag kit, # F4176, will not fit the TDI models, but based on the coil spring dimensions you provided in the attached diagram, these SumoSprings will work for you and help level the rear end of your Passat with the weight of the bike rack and bikes.
    view full answer...

  • Possible Suspension Enhancement Fit for a 2014 Volkswagen Jetta SportWagen
  • I spoke with my contact at Firestone and if the coil springs on your 2014 Jetta Sportwagen measure just over 3-1/2 inches in diameter and 7 inches in length when the springs are bearing the weight of the vehicle, the Coil-Rite Air Helper Springs, # F4176, will work for you. They haven't tested this kit on your vehicle yet so they don't know for certain if it will fit, but there is a good chance it will. These air springs fit inside your existing coil springs and help to level your...
    view full answer...

  • Fit of Firestone Coil Rite # F4176 on Canadian-Market 2010 VW Jetta Sportwagen TDI
  • According to my Firestone representative, Firestone makes no fit distinction between US and Canadian Jetta TDI Sportwagen models. I did some online research, and found that the differences between US and Canadian models are the trim levels and some interior appointments, but no differences in the driveline or suspensions. The Firestone Coil-Rite # F4176 would work with your TDI Wagon. You can see the installation details by clicking the provided link.
    view full answer...

  • Suspension Enhancement Recommendation for a 2012 Volkswagen Jetta Sportwagen
  • At this time there is only a Firestone air bag type of suspension setup available for your 2012 Volkswagen Jetta Sportwagen. For that you would want the part # F4176. The Firestone and Air Lift bags are both made by the same company though either way you would basically be ending up with the same components. Your other option is the part # CSS-1145R which installs in between the coils of the springs to provide additional support. What's nice about this kit is that it does not require...
    view full answer...


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