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Haldex controll module leasking??? vagcom...help please

scott_johnson Feb 22, 2008

  1. scott_johnson

    scott_johnson Audiless

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    Hey all. Had my car on a mates vagcom as a yellow diagnostic light came on (dosent show it in the manual) a fault came up about a pressure drop between the re-circ and something else which came up as the old dv was nakerd and has been replaced... the other fault found was something about a leaking haldex module???? any body got any ideas????? is it vital i have it checked??? sorry i dont have the fault code, forgot to jot it down :( cheers
     
  2. jbw

    jbw Member

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    Haldex unit is to do with the Quattro system on A3/S3, I believe it controls the rear axle. Further info can be found: http://en.wikipedia.org/wiki/Haldex

    Personally I'd take it in and get it checked over.
     
  3. scott_johnson

    scott_johnson Audiless

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    lol. i no what a haldex is, i jus wanna no whats causing the fault to appear. hope its something and nothing!!!
     
  4. keendean

    keendean Member

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    I've got one second hand if you do need one, hope it's not your problem though :)
     
  5. ash_s3

    ash_s3 Active Member

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    The haldex controller is an ECU type module that controls the power going to the rear wheels
    Expensive and a ******* to replace, get it checked by a main dealer 1st though
     

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