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haldex trouble?

dultanur Jan 2, 2007

  1. dultanur

    dultanur all promises, no action :)

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    hi guys!
    after my car has been parked overnight at around freezing temperatures or a bit above, when i back up to get out of my parking space with full lock (either way) the car seems to hop about and generally have difficulty moving back. not impossible, but sort of like one of the rear brakes are sticking. btw i don't pull the handbrake when its cold. after i drive just a little bit, this stops.

    giong away so quickly makes me think its the brakes, but someone on here said before that backing up in a circle tests the haldex somehow, if you cant do it properly the haldex is cooked.

    also the haldex seems to work normally, no wheel spin, acts properly on snow/ice etc.

    so is it the haldex or the brakes? if the brakes whats the problem? if şts the haldex i guess its junked...

    thanks all and happy new year.
     
  2. ChriS3

    ChriS3 hud at ye bam

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    Out of interest, have you tried switching off the ESP and seeing if it still happens? With full lock on the wheels on each side can are moving at different speeds and this can confuse the ESP, which inturn starts to grab brakes to stop what it thinks is wheelspin.
     
  3. jesters3

    jesters3 Active Member VCDS Map User

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    Exact same thing happend to me and I need a new Haldex unit, they are unable to track this through VAG.com as the Haldex has a diferent sensor or somthing is if I recall. My issue what that I simply could not reverse either way on full lock after more than a meter or so. If you force it you will hear a very very very very loud bang and then reverse a little bit more before it locks again. Get it into a stealer or specialist and get them to dop the reverse test, the guy shat himself when he forced it...so did i. FYI the cost of a new Haldex in Jun 2005 was £1612.00 + VAT and Installation.

    Good luck
     
  4. dultanur

    dultanur all promises, no action :)

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    chris my car doesn't have ESP :)

    jester, i guess you're the guy i was referring to in my first post. my car can move, it just has a little trouble as if the brakes are grabbing a bit. the first time was right after i lowered the car, so i thought the wheel was scraping the wheel well, thats how it feels like. also, did your car still do the same after its warmed up? and does the haldex work normally otherwise?

    thanks for the answers...
     
  5. jesters3

    jesters3 Active Member VCDS Map User

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    If I remember the car drove fine and had little trouble. There was no noise or grinding, it was only when you decided to reverse park and have to whip it around that you find the trouble. I thought it was the brakes or the handbrake and so did Audi when asking them, put the proof was when they tried it, it should not be intermittent but happen everytime you try to reverse. Good luck you can get one on ebay a few weeks back but then you have no comeback when it don't work.
     
  6. dultanur

    dultanur all promises, no action :)

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    hmm...mine only does it when its quite cold. otherwise its all good. so, my brakes are almost gone and i'll be changing them anyway. see if that will help (i doubt it).

    if the haldex works fine otherwise, couldn't you just use it like that, just dont put on full lock when reversing? seeing the price i think i'll keep my haldex if it is the culprit.
     
  7. Tooks

    Tooks Active Member

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    Jesters3, so it was the Haldex unit itself up the creek, rather than just the controller?
     

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