Troubleshooting 4-Way Installation on 2021 Mercedes-Benz GLC
Updated 08/01/2022 | Published 07/29/2022
Products Featured in This Question
Question:
Yellow connector on the t dont matchup with the tailight harness connector
asked by: Gerardo V
Expert Reply:
There are only two ways the # 118747 won't line up on your 2021 Mercedes-Benz GLC. The first is if you have the coupe and not the SUV. The other is if you have the premium package. Neither of these are compatible with this wiring harness. If that is the case, you need the # C59236 if you have the SUV with the premium package or the # C59236 for the coupe.
If that is not the case, make sure you have the correct connector on the correct side of the vehicle. The taillight wiring harness will have a connection point, on both sides, matching the ends of the T-One Connector. The green wire should be on the passenger side and the yellow wire on the driver's side.
Continue Researching
- Shop: Trailer Wiring
- Q&A: Recommended Wiring Harness For A 2018 Mercedes-Benz GLC 300 Premium Model
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Q&A: Tekonsha 118747 Trailer Wiring Harness Fit on 2020 Mercedes-Benz GLC 300
- Q&A: Choosing The Correct 4-Way Vehicle Wiring Harness on a 2020 Mercedes Benz GLC 300
- Q&A: What Wiring Harness Fits The 2022 Mercedes-Benz GLC 300 4matic?
- Q&A: Where Are The Plugs For The Tekonsha T-One 118747 To Be Installed On 2018 Mercedes-Benz GLC
- Video: Curt T-Connector Vehicle Wiring Harness Review C56040
- Shop: Trailer Hitch
- Search Results: trailer hitch
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: Trailer Wiring Diagrams
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Search Results: trailer wiring
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Video: How to Choose a Trailer Brake Controller
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Shop: etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2"
- Search Results: trailer tires and wheels
- Shop: Suspension Enhancement
- Article: How to Measure for Trailer Hitch Drop
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Search Results: trailer jack
- Shop: Brake Controller
- Shop: Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Way to 6-Way Coiled Adapter Cord
- Search Results: brake controller
- Video: Clean Up Your Trailer Wiring
- Article: How to Measure Your Trailer Wheel Bolt Pattern
- Shop: Gooseneck Hitch
on Custom Fit Vehicle Wiring
