Fuel switch location

Asked by Jeff Feb 10, 2020 at 03:40 PM about the Mercedes-Benz 300-Class

Question type: Maintenance & Repair

Where is my fuel switch for a 92 Mercedes 300?

1 Answer

There’s a fuel pump really in the engine compartment by the firewall behind the glove box (passenger side). Probably a black plastic cover and a couple of control units in front of it. They all come out pretty easy. The fuel pump relay is a black box 2”w 1”d 3” h. If you pull it out you can jump the pump by jumping pins 5&7 If memory serves. Get a test light see which pin has power with key on. Put a jump wire in it it and touch each of the other pins. One will make the fuel pump buzz. No damage will be caused by touching the wrong ones. All pins are numbered but hard to see

Your Answer:

CarGurus Experts

  • #1
    James Ramond
    Reputation
    310
  • #2
    Paul
    Reputation
    300
  • #3
    Storm_2308
    Reputation
    260
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Mercedes-Benz C-Class
75 Great Deals out of 1,399 listings starting at $3,500
Used Mercedes-Benz E-Class
39 Great Deals out of 569 listings starting at $4,900
Used Mercedes-Benz S-Class
18 Great Deals out of 200 listings starting at $6,500
Used Mercedes-Benz SL-Class
114 listings starting at $13,888
Used Mercedes-Benz GLC-Class
50 Great Deals out of 1,023 listings starting at $18,888
Used Mercedes-Benz CL-Class
5 listings starting at $22,991
Used BMW 5 Series
22 Great Deals out of 303 listings starting at $5,299
Used Mercedes-Benz AMG GT
3 Great Deals out of 72 listings starting at $97,990

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. Content will be removed if CarGurus becomes aware that it violates our policies.