7-Way to 4-Way Trailer Wiring Adapter for 2015 Mercedes ML350 Towing Trailer with LED Taillights
Published 11/19/2019 >
Products Featured in This Question
Question:
Trailer lights work on 02 F150 but not on 15 ML350 with the 7 pin convert to 4 pin?
asked by: Steve
0
Expert Reply:
Newer German vehicles like your 2015 Mercedes ML350 have a harder time with trailer lighting that is LED as it ends up tricking the vehicle into thinking there's a bulb issue. So the solution is a 7-way to 4-way adapter that has load resistors built in to take care of the problem. For that you'd need just the # C35FR and you'd be set.
expert reply by:
Jameson C
0
Product Page this Question was Asked From
Combination LED Trailer Tail Light - Submersible - 6 Function - 11 Diodes - Passenger Side
- Trailer Lights
- Tail Lights
- Rear Reflector
- Side Marker
- Side Reflector
- Stop
- Tail
- Turn
- Square
- Surface Mount
- Submersible Lights
- LED Light
- 5L x 5W Inch
- Red
- Optronics
more information >
Continue Researching
- Video: Review of Thule Toolbox Mounting Kit TracRac Sliding Ladder Rack System - TH25200
- Shop: Ladder Rack
- Q&A: How To Mount A Toolbox To The Thule TracRac TracONE Ladder Rack
- Shop: Thule TracRac TracONE Truck Bed Ladder Rack - Fixed Mount - 800 lbs - Matte Black
- Shop: Thule TracRac TracONE Ladder Rack w Cantilever and Toolbox Mounts for Toyota - Fixed Mount - 800 lbs
- Shop: Toolbox Mount Kit for Thule TracRac TracONE Truck Bed Ladder Racks
- Shop: Trailer Hitch
- Shop: Trailer Wiring
- Shop: Curt Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Q&A: Trailer Hitch and Wiring for a 2015 Mercedes GLE 350
- Q&A: Recommended Vehicle Wiring Harness for a 2009 Mercedes-Benz ML350
- Shop: Tool Box
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit
- Article: Trailer Wiring Diagrams
- Article: Trailer Lighting Requirements
- Q&A: Solution for Needing Replacement Caliper for Kodiak 204 Caliper
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: Will A Spare Tire With A Higher Load Rating Be Ok On A 2022 Aluma 7814ST?
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Article: Holiday 2025 | Staff Picks for Real-Life Adventures
- Q&A: Comparing Air Lift WirelessONE Compressor System AL25980EZ and AL25980
- Q&A: Are The DeeMaxx Hub/Rotor Assemblies Compatible With Kodiak 225 Calipers?
- Article: Trailer Maintenance Schedule

