Does anyone know where the Fuel Pump Relay is located? 1990 300E (4matic)


Thanks,
deblaze

 

Hi,

It is the green relay behind the battery behind the black cover. If you are looking at the battery from the right side it is the green relay on the left and other relay is the ovp it is white and silver w/ a clear plastic top w/ a fuse in it.

Joe

 

Are you sure, it a 1990 300E (4 matic) I checked and located the over voltage (the clear on with the fuses on top... but for the green one (fuel pump relay) I can't find.

Please explain further....


Thanks'

 

I have a 95 E320 wagon they maybe different...I honestly cant say. I thought they were the same. Sorry for the misinformation..

Joe

 

I used to drive a '86 330E. The fuel pump relay was located behind the battery, as far as I can remember, but it was black and did not have any fuses it it.

 

As Arnie said on my 230TE it is under the black plastic cover behind the battery, it's black about 2"x1"x3" high.

 

Fyi... I Just Found Out The Fuel Pump Relay Is Incorporated In The Mas Relay Just Behind The Battery On The 300e 4 Matic. There Is No Seperate Relay. That's Why I Couldn't Find It.

I Hope This Info Helps Someone Else.


Deblaze

 

Ive had this issue before,its located in back of the battery, it is a green switch but keep in mind the color code on the relay fades so ull have to play with the relays , as ur changing ur relay im only positive ur fuel pump will only push out so much kilop....i suggest u change that to, it will last 5 more months but why chance it,might as weel do the work at once then find ur self stuck on a highway with a hot chick like i did..lol