Hi all,

I have a 1989 129 500SL which runs ok from cold but once it warms up it starts to misfire and eventually stalls. It is usually very difficult or impossible to restart it and it backfires as the engine is cranked over. If I leave it for about half an hour it will restart fine.

I'm guessing its a problem with one of the engine temp sensors causing the car to overfuel.

Does this sound reasonable or should I be looking elsewhere?

Can someone tell me what sensors to check and where on the engine they are located?

Many thanks,
Bryn.