How do you know when the fuel pump is going bad on a 1990 420 sel

Asked by Nov 07, 2013 at 07:05 AM about the Mercedes-Benz S-Class

Question type: Maintenance & Repair

The car is starts fine but when you drive a distance it starts to hesistate as if its running out of gas. the car cuts offs restarts drives alittle ok and returns to the same

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It could also be your fuel pressure regulator going bad you might want to have it checked or find a fuel pressure guage to check it if your car is under warranty i would take it to the dealer ship

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