Two problems related to turn signal have been reported for the 2008 Mercedes Benz C350. The most recently reported issues are listed below.
Warning light came on to check right side tail and brake lamps. Warning sign to also check right turn signal. It appears that these come on after driving about 30s-1min. When opened up the right back light kit, the plastic harness holding the bulbs and wires is burning slightly and slightly charred. Light bulbs are working as they do initially turn on, but then go off after 30s-1min. Also light comes up on check rear left tail and brake lamps. But these work fine, and the left back light kit plastic harness appears normal and fine.
Keep getting the "check right rear tail and brake lamp", "check right rear sidemarker lamp", and "check right rear turn signal". The blinker will work fine, then after 10 minutes of driving it blinks very fast and the warning light comes on. Sometimes none of the lights on the right rear panel will turn on, sometimes they will. Or they will work for 10 minutes and then go out along with the warning signs. I looked at the bulbs today to see if any were burned, and the harness was burned and brown! I have smelled smoke a few times within the last month as well. This issue is getting worse. This is an extreme safety hazard and must be fixed immediately. Please advise!.