Chazchuzzlewitt
Senior Member
- Joined
- Nov 30, 2004
- Messages
- 378
- Reaction score
- 0
- Location
- Dorchester
- Your Mercedes
- W/S124 320TE Estate
Just got a new 280SE 3.5 with the M116 V8 engine. On cold starting after about 2-5 secs in P or N the engine starts to rev up and down quite dramatically. If I put it in gear it idles normally. I'm guessing something like a vacuum leak or cold start valve?
