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Help With S3 Rear Diff

Discussion in 'A3/S3 Forum (8L Chassis)' started by Tom Mineral Grey S3, Mar 6, 2009.

  1. Tom Mineral Grey S3
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    Tom Mineral Grey S3 Member

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    Hey,

    Im hoping someone can help me, i want to try and find out what is making a noise on my car. Ive got a Audi S3 2001. When i turn right or left on full lock or just short of it, a loud scrubbing noise comes from the back somewhere. I only hear this noise on full lock and not when im driving normally in a straight line.
    i think it might be the rear diff as a friend of mine had a similar noise and that was diagnosed as rear diff problem.

    Any help anybody can offer would be much appreciated.

    Thanks
    Tom

    :blackrs4:
    #1
  2. nick-barnes07
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    nick-barnes07 Member

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    i never ever got to the end of the problem with my old one a year or so ago, replaced the diff and haldex, drive shafts, and few other bits and none sorted it, does it feel as if the brakes are jamming on
    #2
  3. Tom Mineral Grey S3
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    Tom Mineral Grey S3 Member

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    Not really mate, its feels sluggish when its making the noise but not like the brakes are sticking. Ill give anything a go though :) cheers
    #3
  4. nick-barnes07
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    nick-barnes07 Member

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    #4
  5. nick-barnes07
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    nick-barnes07 Member

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    i have 2 spare haldex controllers and a spare diff if u need any bits, as i bought these for mine and it turned out not to be them,
    #5
  6. jojo
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    jojo S3 Drift King! Staff Member Moderator

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    Hi Tom, 2001 S3, so I take it you have ESP as standard on your car. Now pull the handbrake up to one notch and that will disengage the Haldex clutch totaly and try to make a turn in the car with full lock on steering at low speed to see if the sound is still there. This will at least maybe eliminate a few things.
    #6
  7. Tom Mineral Grey S3
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    Tom Mineral Grey S3 Member

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    Thanks a lot lads, ill give it a go later on and see if it sorts it out.

    Cheers
    #7
  8. thegoal007
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    thegoal007 Another S3 owner....

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    As Nick Barnes has mentioned, look at the link. I currently posted the last message on there I suggest you read it. The ones that have cured it by changing the rear haldex controller I suspect have earlier S3 models and/or have slightly different symptoms.
    Tom Mineral, you sound like you have the exact same issue as mine and I presume yours is the 225 S3 engine too. It really does begin to point towards the esp/abs ecu.
    #8
  9. barters3
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    barters3 Member

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    I had the same problem.i had a small leak on the haldex unit. I fixed the leak and changed the haldex oil,this wil be ur cheapest bet to start off with.
    #9
  10. Paul-S3
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    Paul-S3 Member

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    I had that exact problem and it was a fudged rear diff!!!
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  11. thegoal007
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    thegoal007 Another S3 owner....

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    actually re-reading your post & reply I think yours is NOT the same problem as mine.
    You hear noise on full lock - I dont
    my rear wheels lock - your don't
    one thing is common - this only happens on full lock .
    #11
  12. Mr V
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    Mr V New Member

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    I don't want to be taking advantage of the situation but if you have a look in the classifieds under 'engine' i've got a brand spanking new diff for sale. You're not going to get new one for that price after it's gone...
    #12
  13. jonnywb
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    jonnywb New Member

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    I have an audi s3 2002 and i have haldex problem i think.I have no power to rear, it is not noisy and i have cheacked the fuse so does anyone know what it could be ?
    #13
  14. Tom Mineral Grey S3
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    Tom Mineral Grey S3 Member

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    Thanks for all the info lads.

    Just thought id add a last post to give the final outcome(sorry for the delay :blush:) In the end ive had the the haldex oil and filter changed and luckily its sorted the problem completely.
    I no longer have any noise off the back at all and its feels much better to drive, think i have gotten away quite lightly as from some of the past info it seems like it could have been much worse.

    Great advise, saved me loads of £££££££

    Cheers

    :greyrs4:
    #14

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