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  1. #1
    Reverse Gear

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    A3 3.2 2004 Haldex Control Unit

    Hi
    Have just joined after buying a 2004 A3 3.2 quattro sport.
    Great car but have had a problem with the ESP/traction warning light come on. Took it to a specialist who says I need a new haldex control unit.
    Can anyone help with advice / how to get hold of one that doesn't cost the earth?
    Is is the 8P Gen2 version that I need?
    Can i fit a second hand one from another car of similar or newer age (heard that older models are not compatible due to software issues) are the petrol and diesel versions interchangable.
    Any help will be appreciated.
    If you have one for sale, I would be interested.
    Thanks
    RC

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  3. #2
    autolatry's Avatar
    2nd Gear

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    You sure it's the controller and not the coupling?

    You should get the upgraded control unit if you have to replace it.

  4. #3
    Reverse Gear

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    The guy said there was no communication between the car and the AWD.
    Have you had the upgraded unit? which one ?

  5. #4
    shariain's Avatar
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    A3 3.2 2004 Haldex Control Unit

    Get it scanned with vdcs and post the logs on here. There are a fair few faults that can stop the ESP from working.

    If you are 100% sure it's the haldex controller that's away then here is some info I found when I replaced mine last year.

    Haldex control unit gen 2 part no.
    A3 2004/2008
    1K0 907 554 prefix C
    Replaced by
    1k0 525 130B obsolete
    1k0 525 130F obsolete
    Now
    1K0 525 130L

    R32 Golf 2005/2009
    1k0 525 130L

    TT 2007/2010
    1k0 525 130L

    I searched eBay for a like for like part and got one from Germany.

    Also when I had the problem the ESP and abs light came on as far as I can remember.
    S3 1.8t Ming blue with ivory leather & 18"tt alloys

  6. #5
    shariain's Avatar
    5th Gear

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    here are my faults i had

    ABS Brakes
    Cannot be reached

    Address 19: CAN Gateway
    1 Fault Found:
    01324 - Control Module for All Wheel Drive (J492)
    004 - No Signal/Communication - Intermittent
    Freeze Frame:
    Fault Status: 00100100
    Fault Priority: 2
    Fault Frequency: 15
    Reset counter: 56
    Mileage: 120626 km
    Time Indication: 0
    Date: 2011.12.29
    Time: 18:55:14

    also

    Address 22: AWD
    4 Faults Found:
    16347 - Control Module - EEPROM Error
    014 - Defective
    02248 - Valve for Controlling Clutch Operating Angle (N373)
    014 - Defective
    16347 - Control Module - EEPROM Error
    014 - Defective
    02248 - Valve for Controlling Clutch Operating Angle (N373)
    014 - Defective
    S3 1.8t Ming blue with ivory leather & 18"tt alloys

 

 

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