Hey Everyone,

My 240D just tried running away on me. It has been working fine, other than the occasional time where it will not shut off with the key (about once every 30-40 times)

Now I have not had a lot of time to look because this happened on my lunch break 10 minutes ago, but basically I stopped at the gas station for some snacks and turned the car off, it shut down just fine. I got back in the car, fired it up, and the RPMs began to rise. It wasn't very much at first, in fact I didnt even notice they were higher than normal so I just continued driving. I go to shift from 2nd to 3rd once out on the road and the engine starts accellerating!!!. I get to a stop light, push in the clutch and off it goes again! I tried turning it off and it actually shuts right off with the key.

I pulled over to make sure the throttle was not stuck and there was no unhooked vaccum lines and all looked good. Started it back off and it started to accelerate just like before! After slamming it into 1st and 2nd to get back to work I turned off the car and coasted it into a parking spot.

What would be some possible causes? I plan on doing quite a bit of reading on here tonight but in the meantime does anyone have any ideas what would cause this?

Please let me know, I plan on leaving the car at work overnight as I do not feel it is safe to drive in this state.

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1983 240D 4spd
1984 190E 5spd
1987 300D (sitting for a year or two)
1989 Toyota Camry 5spd (current DD)