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Haldex issues

Discussion in 'A3/S3 Forum (8L Chassis)' started by MrTackalakalaka, Sep 14, 2012.

  1. MrTackalakalaka
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    MrTackalakalaka Member

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    [Sep 14, 2012]
    Hello there everyone

    Ive had a problem with my car for a while and i think ive worked out what the problem could be.

    Am i right in thinking that the 8L S3 is normally front wheel drive until you accelerate or start to loose grip then the haldex kicks in turning it t4wd?
    I have noticed quite a lot that if i slow down for a roundabout or junction or whatever and then as i accelerate out of it.......as the car starts to gain speed fast i get a huge thud/bang/knock (dont know how to describe it) and the car feels like ive just drove over a pot hole.

    I also read somewhere that the haldex oil and filter need to be changed every now and then to stop the clutch from seizing. I didnt know this needed doing and neither did the previous owner (owned it for about 4 years from 29k miles, now on 81k)

    Could i be looking at a haldex that may be on its way out? or the clutch is seizing etc

    or am i talking absolute **** and need to sshh?

    haha any suggestions?

    Cheers
    #1
  2. vrbob
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    vrbob Thats no Moon, Thats a space station!

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    [Sep 14, 2012]
    Haldex should be done every 40k you can get the filter oil and tool off ebay for about £50
    #2
  3. <tuffty/>
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    <tuffty/> Badger 5 Edition...Its all about the flow... Staff Member Moderator

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    [Sep 14, 2012]
    Haldex oil change is every 20k and filter change is every 40k but tbh its worth halving that especially if doing it yourself...

    Filter is around £20, oil around £12 and the tool around £25... all can be got off eBay or GSF

    <tuffty/>
    #3
  4. Omniquito
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    Omniquito Member

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    [Sep 15, 2012]
    Going back to near the beginning, is Mr Tack.... Correct in assuming that an 8l S3 is front wheel drive until slip and then 4wd? I ask as i get a little wheel spin/chirp before it grips and wonder if thats a problem or the norm? Im used to an allroad that has permy 4wd and no slip...
    #4
  5. Jpd89
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    Jpd89 Member

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    [Sep 15, 2012]
    Think it's like 90/10 permanent then up to 50/50 once wheel spin has been detected?
    #5

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