Recommended Brake Controller for a 2016 Mercedes-Benz GLE-Class 350D
Updated 03/16/2017 | Published 03/15/2017 >
Products Featured in This Question
Question:
How do you wire a brake controller on a 2016 Mercedes 350d? Is there a wiring harness or does it have to be hard wired?
asked by: G. K
Expert Reply:
We do have a few different options for you to use a brake controller with your 2016 Mercedes-Benz GLE-Class 350D.
If you have a factory 7-Way wiring connector on your GLE-Class 350 then you simply need the Plug-In Adapter # 3066-P for a Tekonsha controller like the Prodigy P3 # 90195 which installs on a connector that can be found under your driver's side dash behind that carpet that is behind your brake pedal.
If your vehicle doesn't have the factory 7-Way then it has no plug-n-play option, so you will need to hard wire the brake controller.
For this option I recommend the ZCI Installation Kit # 119250KIT. This kit connects to the wiring behind your warehouse but doesn't require you to splice for your trailer signal lights.
The next thing that you will need to install is the Universal Installation Kit for Trailer Brake Controller # ETBC7. This will mount on your trailer hitch receiver and plug directly into the ZCI 4-Pole wiring harness that you just installed. The additional 2 wires in the kit will be ran to the front of your Mercedes-Benz and connect to both your brake controller and your battery. I have attached a link to one of our helpful articles that goes into detail about how to do this.
The last thing that you will need to do is connect the wiring from your brake controller to the wiring that you now have on your Mercedes-Benz. The blue wire from the pigtail of your brake controller to to the brake wire that goes back to your 7-Way, the black wire will be ran to a 20 amp circuit breaker which is then connected to the positive post on your battery, the red wire will be spliced into the stoplight switch signal which is located behind your brake pedal, and finally the white wire will be ran to the negative side of your battery.
I have attached some helpful articles and a demonstration video that will help you with this installation.
Product Page this Question was Asked From
Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Splice-In
- Under-Dash Box
- Under-Dash
- Up to 4 Axles
- LCD Display
- Multiple Trailers
- Tekonsha
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Article: How to Measure for Trailer Hitch Drop
- Q&A: How Does Brake Controller Install in Tiffin Phaeton 40AH
- Q&A: Comparing Aluma-Tow Adjustable Ball Mount To B&W, etrailer, and Trimax
- Q&A: Recommended Trailer Wiring and Brake Controller for a 1999 Dodge Ram 2500
- Article: Towing a Trailer? Let's Talk About Brake Controllers
- Q&A: Can Redarc Tow Pro Liberty Brake Controller Install 2012 Toyota Sienna LE
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Q&A: How To Turn Off The Tekonsha Prodigy P3 Brake Controller # 90195
- Q&A: How To Tell Apart 5,200 lb, 6,000 lb and 7,000 Axles
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Determining Trailer Tongue Weight
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Our Team Picked The Best Camping Gear of the Year - Here Are Their Top Choices
- Article: 5 Things to Know About Weight Distribution Hitches




