I have an 02 C320 and my turn signal on the front passenger side wont work and it is not the bulbs. I posted this in the c class forum as well and I am just really ticked off at this. Anybody with any info or similar problems would be great.

 

have you check the connections? sometimes loose connections causes Mercedes turn signal not to work, or it could also because of some poor grounding system.. just give us an update regarding this issue.. good luck

 

If your ABSOLUTELY sure its not the bulbs
Then check your turn signal switch

Use a multi meter and check/test it.

 

there is a wiring update for the front turn signals on your car, it ivolves moving around a couple of wires and installing new ground wires..the problem is with the ones you have your not making contact in the connector, so even if you put new bulbs in they still will not work...the repairs kit part number is
2038260282 and you need 2 of them--go to your local dealer i think they only cost about 20 each..let me know if you have any q's

 

Having the same issue on 02 cl55. Started with turn lamp, now the parking lamp will not turn on. Replaced the bulbs, still nothing.

Does anyone know if the ground is (hopefully) located near the bulbs themselves? Or is this a wiring nightmare needing to trace the wire for miles and miles???

 

Found two main ground connections, removed and cleaned the metal areas... still nothing.

Swapped bulbs from left side parking light to rt side (side not previouslyworking), now neither side will illuminate??? Need suggestions