Mercedes GL-Class Does Not Work with a Trailer with LED Taillights
Question:
Hi, I am having the same problem as others with the mercedes not working with led trailer lights. What kind of adapter can fix the problem? I have the factory 7 point connector. Thanks
asked by: Jay
Expert Reply:
Mercedes vehicles do have problems with LED trailer lights. Fortunately there are special adapters that create more current draw that will allow the affected vehicles to tow a trailer with LED lights and not have that bulb out sensor issue. Since you have a 7-Way wiring harness on the Mercedes you can use the 7-Way to 7-Way adapter, # 20142 or the 7-Way to 4- and 5-Way adapter # C35FR.
With the adapter you will be able to tow your trailer with your 2011 Mercedes without a problem. The adapter has built in load resistors that create more draw so the sensors think everything is working normally.
Products Referenced in This Question
7-Way to 4-Way/5-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs
- Trailer Wiring
- Wiring Adapters
- Multi-Function Adapter
- 7 Round - Blade
- Plug Only
- 5 Flat
- 4 Flat
- CURT
more information >
Product Page this Question was Asked From
Trailer Connector Adapter w/ Lamp-Out Sensor Bypass - 7-Way RV to 7-Way RV - Vehicle End
- Trailer Wiring
- Wiring Adapters
- Single-Function Adapter
- 7 Round - Blade
- Plug Only
- 7 Round - Blade
- Tow Ready
more information >
Continue Researching
- Shop: Trailer Hitch
- Shop: Draw-Tite Max-Frame Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Shop: Curt Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Shop: HitchGrip Carrying Tool for Weight Distribution Head Assembly with 2-5/16" Ball
- Article: Tow Bar Wiring: Which Wiring Kit is for You?
- Shop: Vehicle Tow Bar Wiring
- Shop: Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Wire to 6-Wire Straight Cord
- Shop: Roadmaster Sterling All-Terrain Tow Bar - Non-Binding - RV Mount - 2" Hitch - 8,000 lbs
- Article: How to Choose the Right Trailer Hitch Class
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Video: Choosing the Right Trailer Wiring
- Shop: Trailer Wiring
- Search Results: hitch
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Shop: etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2"
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Search Results: trailer hitch
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Brake Controller
- Q&A: 7-Way Trailer Plug Adapter or Compatibility with Lance Slide-In Truck Bed Camper
- Video: Choosing the Right Brake Controller
- Shop: Base Plate for Tow Bar
- Search Results: 118467
- Article: Trailer Wiring Diagrams
- Video: Curt 4-Pole Flat Trailer Connector Mounting Bracket Review
- Q&A: My Vehicle has a 4-Pin Trailer Plug, but Trailer has 7-Pin Trailer Plug
- Article: My Trailer Hitch Doesn't Fit
- Search Results: 90160
- Search Results: brake controller
- Video: Trailer Hitch Installation - 2012 Mercedes Benz GLK Class - Draw-Tite