Hi,
I have an 1988 300TE, it's my second car so it's not driven daily, only on weekends.
Weird problem. The car starts right up and runs fine for ten minutes. Then the engine starts to idle rough and really shakes the whole car. In stop and go traffic the car will stall but start up again, but it's really hard to prevent the car from stalling when accelerating from a stop. After about ten minutes of rough running, it starts to run fine again.
When it's running fine, it's really running great. Any ideas? It's going to the mechanic this week.
Bob M.