Mercedes-Benz
300SEL
6

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

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
Average mileage: 171,069 (143,000–199,138)
2 model years affected: 1990, 1991
6 people reported this problem
Comments
Viewing 1 - 3 of 3 comments
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.