Question about Mercedes-Benz 300-Class

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I have a 1992 E300 gas mercedes 4 door sedan. Always started and ran great until recently. Just had motor mounts and fan belt mechanism replaced. Car starts ok initially but after 5 minutes if i stop the car, it won't restart. Turns but just won't catch. I just replaced the fuel pump relay but that didn't help. Have a buyer but he will be hesitant unless I remedy or at least know what problem is. Thanks for any help/advice.

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Check spark plugs and eventually replace air filter.
Is it an injection or carburetor model?
If it injections it is probably a dirty injector or a computer problem.
If it is carb you need just to regulate carburetor.

Posted on Jul 22, 2008


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