Question about 1988 BMW 7 Series

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Where is the fuel pump located on an 88 bmw 750il

Is there two fuel pumps or one . and how iam i supposed to know witch one is bad.and where are tehy located. please help.

88 bmw 750il

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I've worked on quite a few beemers & they all had 2 pumps. The main is in the gas tank & the auxillary is under the car usually on the passenger side. I'm not 100% positive since all the ones I've worked on were the 3 & 6 series. Find the gas tank, should be under the trunk,I've seen them in different spots believe it or not. There should be an access panel in the trunk or under the back seat to the main fuel pump. Check it for power with the key on. Since it's not running, you may need a second person to cycle the key on & off. The relay will only power the pump for 5 sec or without starting. Do the same test for the secondary pump. I think you'll find the main one is toast. The other one hardly ever goes bad.

Posted on Jun 18, 2009

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