1992, 300SL, Stall, No Wam Start

[Sean19]

Hello everybody,

I am new here. 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 two weeks ago. It is beatiful. I drove it home smooth and nice that night. Few days later again 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.

To be honest, I could not locate any of them. I looked under and behind the engine. I have the photo but couldn't find the CPS any where close to the bell house.

Also please let me know where the Fuel pump and fuel pump relay are so I can listen to the pump. Could the pump be so sensetive to temperature away from the engine and stop working after few miutes in day time?

BTW, check engine light never came up after all this. Bulb is OK. So no codes.

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

Thanks. Sean.