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

1 Answer

1,475

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

Your Answer

Mercedes-Benz S-Class Experts

  • #1
    Tom Demyan
    Reputation
    810
  • #2
    Michael Kane
    Reputation
    580
  • #3
    marydudley47
    Reputation
    480
View All

Related Models For Sale

Used Mercedes-Benz E-Class
532 Great Deals out of 21,622 listings starting at $1,999
Used BMW 7 Series
124 Great Deals out of 5,199 listings starting at $2,995
Used Mercedes-Benz CLS-Class
45 Great Deals out of 2,205 listings starting at $6,000
Used Mercedes-Benz C-Class
730 Great Deals out of 25,993 listings starting at $1,995
Used Porsche Panamera
71 Great Deals out of 2,649 listings starting at $22,950
Used Mercedes-Benz SL-Class
54 Great Deals out of 3,372 listings starting at $3,995
Used Land Rover Range Rover
65 Great Deals out of 3,713 listings starting at $2,850
Used Mercedes-Benz S-Class Coupe
11 Great Deals out of 744 listings starting at $69,900
Used Mercedes-Benz CL-Class
23 Great Deals out of 511 listings starting at $3,980
Used Mercedes-Benz G-Class
5 Great Deals out of 1,101 listings starting at $26,000
Used BMW 5 Series
479 Great Deals out of 16,444 listings starting at $995
Used Land Rover Range Rover Sport
117 Great Deals out of 4,425 listings starting at $5,995
Used Audi A8
36 Great Deals out of 1,566 listings starting at $3,900
Used Mercedes-Benz GL-Class
160 Great Deals out of 3,988 listings starting at $5,900
Used BMW 6 Series
63 Great Deals out of 2,379 listings starting at $5,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.