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Thread: 97 850ci one fuel pump??

  1. #1
    Join Date
    Nov 2014
    Location
    Nevada
    Posts
    109
    My Cars
    89 750iL 6 Speed

    97 850ci one fuel pump??

    I’m looking to replace my fuel pump, this is on the m73. I only have one fuel pump correct? A lot of info online says the 850 has two pumps but behind my passenger seat there is only one pump. Behind the drivers seat is only a fuel level sender. I also only have one fuel filter after looking under the car. I’m trying to source thus pump but fear all the ones advertised are for the 5.0 not the 5.4. Any help would be greatly appreciated.

  2. #2
    Join Date
    Nov 2014
    Location
    Nevada
    Posts
    109
    My Cars
    89 750iL 6 Speed
    According to realoem the 97 has the same fuel pump as the 840’s

  3. #3
    Join Date
    Jan 2005
    Location
    Japan
    Posts
    54,654
    My Cars
    11/88 E32 750iL+98 E36M3
    Same on E32 and E38, E32 750 with M70 has 2 fuel pumps, E38 750 with M73 has 1 fuel pump.
    E31 with M70 has 2 fuel pumps = same size/type like the 2 in the E32 750 with M70, not the M73. Here pics of the E31 M73 fuel pump unit, you can see there is only one pump https://www.ecstuning.com/b-genuine-...t/16141182289/
    fits
    BMW E31 840Ci M60 4.0L
    BMW E31 840Ci M62 4.4L
    BMW E31 850Ci M70 5.0L
    BMW E31 850Ci M73 5.4L
    Shogun tricks and tips for the E32 series are HERE!

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