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Thread: Loss of power when cold

  1. #1
    Join Date
    Feb 2017
    Location
    UK
    Posts
    3
    My Cars
    2002 E39 525d Touring

    Loss of power when cold

    For a while now my E39 has had a severe loss of power issue when cold and also when making left turns occasionally. Essentially the will not accelerate at all or will accelerate in short bursts as shown in this video:



    I have had the injectors tested and have seen that two of them are way out of line (as shown below), but I was wondering if anything else could be causing this before I spend money on 2 new injectors, especially since it happens when turning left even when the car has been running for over an hour. Usually when the car has warmed up the problem goes away aside from it happening when turning left. I have changed the power steering fluid just to see if there was a problem with the PS (there still could be with the pump) but that did not do anything.

    vvHNxPb.jpg

  2. #2
    Join Date
    Oct 2010
    Location
    San Jose, CA
    Posts
    11,537
    My Cars
    1997 BMW 540i 6 speed
    We did not get the E39 diesel, so you'll get no guidance from us blokes.


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

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