"No start" Caused by Failed Fuel Pump/Relay on Mercedes-Benz 300SEL

The fuel pump and/or fuel pump relay can fail, causing the car to crank over but not start. Proper diagnoses will be necessary to confirm if the pump or relay is at fault.

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Average mileage: 171,069 (143,000–199,138)
2 model years affected: 1990, 1991
6 people reported this problem
3 people shared problem details
cant get fuel to fuel pump need to check relay.i need to know is ther a fuse or a reset button between relay and fuel pump. please help
wont start checked fuel pump how do i find out if the relay is any good
motor will turn over but will not start where is the fuel pump relay switch located.
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