Hello, I bought a red 190E 1.8 a month ago. I almost immediately had to replace the clutch master cylinder and slave cylinder. Aaand the headgasket was bad, so that was changed amongst the other gaskets on the engine.
Anyways, there's this really annoying problem I have. When the car is above 60c, the idle will often surge so much that the car stalls almost immediately. If the idle is stable for the moment, I can turn the full beams + the extra lights connected and the RPM's will drop and it will start to surge and stall. This does not happen if it's under 60c, but it has happened once just a short while after I've cold started it. It also ONLY happens if the car is at a standstill, will not happen if the car is rolling.
The fuse on the OVP-relay is intact. Anything else I should check?