- Dec 31, 2017
- Reaction score
- Your Mercedes
- E Class Coupe Auto 2013 220CDI
I have an issue with the 3rd brake on the boot lid not working. I have checked and have found the LED light assembly is functional but there is no voltage reaching it. The other brake lights are working OK so it looks like a break in wiring. Does anyone have an electrical schematic for the brake lights or know if there are any relays for the 3rd brake light only.