2001 E39 530D, Strange electronic goings on

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  1. 2001 E39 530D, Strange electronic goings on 
    #1
    Bimmer Fan
    Car Details
    Teallaire's Car Details
    Model of Car:
    E39 530D
    Year of Manufacture:
    2001
    Transmission Type:
    Automatic
    Car Body Type:
    Saloon

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    Hi, I have an E39 530D with 135,000 miles on the clock and have had some problems recently that may or may not be electronic.

    Firstly the car experienced a significant drop in power 3/4 way up a mountain just when I turned on the fog lights but full or nearly full power returned shortly after that which was strange, however a noise like a squeaking fanbelt was apparent when putting the engine under a bit of pressure. I brought it to the garage and they told me the noise was coming from the turbo. Turbo was removed and sent off to be checked and it came back with a clean bill of health with advice to change something (some gasket?) on the outlet side of the turbo, just in case this was faulty, this was done and turbo reinstalled and when the car started up again the noise was there for about 3 minutes on idle and then it went away. It failed to come back upon testing. When I got the car back again it was going fine for a day and then under pressure going up a mountain again I turned on the fog lights and again the engine power dropped. It turned out as well that the dash lights had gone off when in the garage but returned again and the window and mirror controls in the door have completely stopped working some time recently as well. ALSO the aircon and fan stopped working but then returned again at a later stage the same day. It all seems connected to the electronics in some way. My mechanic admits that the turbo sound could feasibly be caused by the an electronic control incorrectly influencing it. Does anyone have any experience of a similar problem? thanks in advance.
     
     

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    #2
    BMW Maestro
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    danidge's Car Details
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    E36 323i + cbr1000rr
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    it could be something as simple as a loose earth, have you had a look around to try and find anything like that?
     
     

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    #3
    BMW Guru
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    TheEnd's Car Details
    Model of Car:
    540
    Year of Manufacture:
    1998
    Transmission Type:
    Auto
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    It's all a bit odd.
    Electrical issues and squeals with electrical drains sounds like slipping belts.
     
     

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    #4
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    Ronnie's Car Details
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    Never too old, never too new
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    Yep slipping belts or even still a ignition switch issue is a possibility.
     
     

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    #5
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    ragtop steve's Car Details
    Model of Car:
    E60 530D & F07 535D GT
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    2006 & 2012
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    This dose sound like a common fault with the e39, it's got to be the hedge hog as it's commonly known, it's a resister that sits to the left of the clutch pedel and behind the carpit and takes about 20mins to replace, google it to find more info but a similar thing happened to my e39 525d and this was the culprit.


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    #6
    Dr of BMW
    Car Details
    530kam's Car Details
    Model of Car:
    530d M Sport
    Year of Manufacture:
    2005
    Transmission Type:
    Automatic
    Car Body Type:
    Saloon
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    Yes i agree - had it changed on my 525 E39 - it was loosing electrical power intermittently
    Bavarian Motor Works
    530d M Sport Auto in Carbon Black with Black Leather

    Options: Sat Nav Professional,Bluetooth,Folding rear seats, Playstation II, Sony 10 DVD player, Twin headrest monitors & wireless headphones
    Modifications: De flapped,Spare wheel kit, Falken 452's,retrofit BMW Ipod & full software upgrade
    Wish List: window tints & spoiler
     
     

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