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Thread: Erratic idle

  1. #1
    Join Date
    Jan 2018
    Location
    Manchester uk
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    1
    My Cars
    E39 528i auto saloon

    Erratic idle

    I have a 2000 bmw e39 528i with a strange problem even though car is 17 years old it has 131000miles on clock it starts first turn of the key when cold and idles as it should as soon as it reaches normal temperature the Revs drop so low the engine almost stalls and seems like it is running on five cylinders
    As car is automatic doesn’t accelerate as it should any ideas please

  2. #2
    Join Date
    Jan 2005
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    Japan
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    54,654
    My Cars
    11/88 E32 750iL+98 E36M3
    moved to E39 forum
    Shogun tricks and tips for the E32 series are HERE!

  3. #3
    Join Date
    Oct 2010
    Location
    San Jose, CA
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    11,537
    My Cars
    1997 BMW 540i 6 speed
    Codes?


    Ed in San Jose '97 540i 6 speed aspensilber over aubergine leather. Build date 3/97. Golden Gate Chapter BMW CCA Nr 62319.

  4. #4
    JimLev's Avatar
    JimLev is offline Artifically Aspirated Moderator
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    Oct 2006
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    Sundance Mesa, NM
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    19,817
    My Cars
    00 540/6, '16 Highlander
    Have you cleaned the idle air control valve?

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