2002 E39 520iA touring - Pusher fan conundrum

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Thread: 2002 E39 520iA touring - Pusher fan conundrum

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  1. 2002 E39 520iA touring - Pusher fan conundrum 
    #1
    BMW Maestro
    Car Details
    mikesmith2's Car Details
    Model of Car:
    520i SE
    Year of Manufacture:
    2002
    Transmission Type:
    Auto
    Car Body Type:
    Touring

    Join Date
    Feb 2009
    Location
    Reading.
    Posts
    540
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    When the air con is on the pusher starts to spin then stops.

    With the temp sensor on the bottom hose disconnected the same thing occurs, if the pins are jumped nothing.

    Also with the connector to the air dryer disconnected still the same.

    If both connectors are disconnected the fan still starts to spin then stops.

    The fan is not seized as it spins freely when an air line is directed at it.

    Does the fsr or hedgehog have anything to do with it?

    Any help appreciated.
     
     

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  3.  
    #2
    BMW Maestro
    Car Details
    mikesmith2's Car Details
    Model of Car:
    520i SE
    Year of Manufacture:
    2002
    Transmission Type:
    Auto
    Car Body Type:
    Touring

    Join Date
    Feb 2009
    Location
    Reading.
    Posts
    540
    Thanks
    50
    Thanked 83 Times in 74 Posts
    Managed to test for power on the signal wire and it's getting around 3 volts.

    Therefore I assume the fan is knackered.
     
     

  4.  
    #3
    BMW Maestro
    Car Details
    mikesmith2's Car Details
    Model of Car:
    520i SE
    Year of Manufacture:
    2002
    Transmission Type:
    Auto
    Car Body Type:
    Touring

    Join Date
    Feb 2009
    Location
    Reading.
    Posts
    540
    Thanks
    50
    Thanked 83 Times in 74 Posts
    Tried replacement fan and still the same issue.

    Now completely baffled.
     
     

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