1992 300SL no start warm engine

[Sean19]

Hello everybody,

I think I could get more help in this forum. So please send me your comments. I've already received some valuable suggestions from SL forum buddies. Thanks. I have been reading your posts for few nights and I think I need to give you the exact picture so you can help me out better. Sorry to make it so long.

I just bought a 1992, 300SL, with only 62K miles. It is beatiful. I drove it home smooth and nice that night. Few days later I drove it for about 50 miles again at night with no problem. Finally I decided to take it work and just about 7 miles on a hot day engine started to sputter and stalled at the cross sectionwhen taking off from the stop light. I was able to strat the engine and make it to my work place parking lot few blocks away. This short run took few more starts. Then in the parking lot it started few more times and stalled every time shortly. I was able to go high RPM for very short time about few seconds each time but finally it died and didnt start again. After few hours the engine started normally. I didn't drive it and left it there untill I took off from work and drove it home at nihgt with no problem (7 miles). Few days later I drove it to grocary shop 3 miles away (around noon). After 15 to 20 minutes back from shopping the car did not start again. Did start couple times but stalled right away. Left it there and went back at night and drove it home with no problem. Yesterday I decided to take it to my friends house and check it out. It died few blocks away from home and was towed there. It started again after few hours and made it from drive way into the garage and died.

From my research here and your experiences with similar temperature related problems, I have narrowed it down to Crank Position Sensor, Fuel pump/fuel pump relay and OVP relay. But I need more help specific to my car make and model.

BTW, check engine light never comes up. Bulb is OK. So no codes.

Please advise. I make my next messages short. I promise.

Wiring harness is in very good condition. Distributor cap looks new.