Originally Posted by MercFan

I was messing around with the instrument cluster of my (edit) 300D last night trying to replace the little bulb that illuminates the dash in (upper left side) when the bulb accidentally dropped down inside the cluster...

I stuck a replacement bulb into the little socket and put it back in place, but it maybe shorting something in there because now, the right turn signal indicator light is not working... I can hear the relay clicking and I can see the right blinker blinking fine, but the right indicator inside the cluster is not illuminating. I pulled out the bulb and it checks out fine... anything else that anyone can recommend before I tear into that cluster (again)...

So now I have the original problem: the malfunctioning dash bulb (pill bulb) that refuses to light PLUS the now malfunctioning blinker indicator light. I hate it when I don't fix the first problem and create a new one...

I should also mention that I've had ongoing issues with the hazard lights relay and I had to disassemble it and manually switch it off for the hazard lights to stop linking incessantly. Is there a chance the turn signals are wired through that relay?!