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Quattro

Discussion in 'A3/S3 Forum (8L Chassis)' started by mhr1972, Dec 20, 2009.

  1. mhr1972
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    mhr1972 Member

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    Having problem with traction on my S3-2002 plate. Have P-Zeros fitted but still in wet the wheels spin and now in the snow have to leave at home as she gets stuck on the slightest incline. On checking on ice/snow to see if Quattro is working only front wheels spin. Have checked fuses all seem fine. Are other S3/Quattro owners getting this same lack of traction or is it just me. My S2 pictured use to work a treat, loved the snow. But S3 a real disappointment? and i feel it should'nt be. Any advice or response welcomed!
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  2. S90GAV
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    S90GAV Member

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    sounds like your's isnt working, cause ive been all over in mine today in snow up to 8 inches deep and its plouded through it no probs.
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  3. mhr1972
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    mhr1972 Member

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    I just saw your photos, mine is same, red with silver mirrors but cream alacantra interior. The incline you have pictured your car on. mine would still be there waiting for a push??
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  4. S90GAV
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    S90GAV Member

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    have you got vagcom? or a member local might beable to sort you out and plug your car in and see if theres any errors coming up on the haldex side of things, have you tried going anywhere with the ESP button off?
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  5. mhr1972
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    mhr1972 Member

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    Son-in-law has one and used it to try and turn Airbag light off couple of weeks ago. Car was showing no faults. Nor could it turn the bag light out either. Have turned the ESP off as recommended. This does work and restricts spin when on. I take it, even being electronic 4x4 all four wheels should be spinning, when i'm sat on level in the snow and floor it? Thanks
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  6. S90GAV
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    S90GAV Member

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    yer all mine spin in the snow on level ground
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  7. ikbenben
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    ikbenben Belgium S3 driver

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    Same here today :sm4:
    The quattro did his work splendidly :kissmyrings:
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  8. mhr1972
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    mhr1972 Member

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    Oh dear. Shall talk to my friendly dealer or maybe, I'm not completely mechanically stupid, even though have been driving a 2wd S3 for 16 months! Is there any tell-tell signs underneath that i can check? Thanks
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  9. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    P-Zeros don't have a very good tread pattern for snow IIRC, I had a set with the 18" RSTT wheels I bought and they were fine in the dry but rain (and snow) they were worse than useless...

    Haldex should be kicking in especially in the snow so if yours isn't then you have a problem.

    You won't get '4 wheels spinning' mind you but you should get traction from the rear at least... (no LSD's in the S3).

    Haldex doesn't work if the handbrake light is on (handbrake up a couple of notches), have you checked the right fuse? Its a 5 amp one (no. 31 IIRC).

    Quattro on haldex cars is a bit different to permenant Quattro so may feel different to what you are used too...

    If the rears aren't spinning at all when you floor it and VAGCOM is showing no faults (I assume you have let it do a scan) then the prob maybe more serious.

    <tuffty/>
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  10. Essflee
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    Essflee Active Member

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    That's a long time to be drivng your car if your haldex isn't working, what's the car feel like in the wet, do you get much front end spin then ??

    You shouldn't be finding slight inclines a problem at all...
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  11. mhr1972
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    mhr1972 Member

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    Car is 66k full dearler history and has always spun its wheels. Thought it was the tyres the dealer had put on so changed to P-Zeros. She still spins in the wet, thought it was all four wheels but maybe just fronts. My S2 and S6 had 300bhp(5-pot) and never spun even in wet. They did have nose heavy understeer in the wet, but never a spin. Did check fuse 31, before i posted this thread.
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  12. Essflee
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    Essflee Active Member

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    You would have to be very aggressive to get your wheels to spin in the wet and even then it would only be for a split second, definately sounds like you have a haldex issue.
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  13. mhr1972
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    mhr1972 Member

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    Thankyou all for advice.
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  14. barters3
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    barters3 Member

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    i had the same problem, couldnt stop my fronts spinning in the wet.
    The precharge pump on the haldex unit was broken. it wont show up as a fault on vagcom tho.
    It is the cylindrical shaped pump on the haldex unit and it has a black plastic tube which houses electrical connections.In the first instance jack the car up and check if the electrical connections are pushed together.
    The pumps are £350+vat from the stealers and an absolute pain to get second hand. there are tonnes of diffs/ haldex units on ebay but no one seems to want to break the pumps.
    I had a chat with a guy called rob at TSR performance the other day, they do a lot of 1.8t conversions to mk2's etc and so have a lot of unused diffs and haldex units. so if you wanted to give it a try you could try and source a pump from ebay or alternativly try. www.tsr-performance.com.
    You will also need to replace the oil at the same time.
    Sorry its a bit long winded, but i hope it helps, good luck.
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  15. mhr1972
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    mhr1972 Member

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    Thankyou very much barters3. I shall check in the morning.
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  16. mhr1972
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    mhr1972 Member

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    To update. I cannot find the precharge pump on Haldex. Shall search for this, must be a diagram on net? The haldex/haldex side of gearbox did have oil on it, or very small oil droplets. Engine level seems fine. Therefore could be coming from Haldex or gearbox.
    Did axle stand the whole car up and put in first gear. All four wheels spin. But i can stop each wheel with very little pressure. Once rear wheels have been stopped they take a few moments to start again. Have checked history, had an Audi Haldex service done 3k before i bought the car and has done 10k with me. Have car booked into a specialist in a week for service, but would prefer to find fault before this.

    Shall check levels on drive train?
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  17. mhr1972
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    mhr1972 Member

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    Sorry my mistake. looking in wrong place for Haldex(fool) back not front of drive train. Shall start again. The front still leaking though.
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  18. ianysm
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    ianysm Active Member

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    Sounds like you're onto something.

    Mine is awesome in the snow, very impressed with the traction.

    Very supprised you've not picked up on this sooner. Good luck with it. An S3's not an S3 without its quattro!
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  19. djdougalno1
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    djdougalno1 Member

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    i got a full rear setup sittin in the garage rear diff, new driveshafts, bottom arms tie bars heldex pump etc if ure strugling to find the parts
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  20. mhr1972
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    mhr1972 Member

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    Found the eathing strap to rear diff broken. have replaced and car seems different. Need to drive more to be able to know. Could the fact that the rear diffs not earther caused problems??
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  21. lee111s
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    lee111s Member

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    I think I have this problem too. I'm disappointed with the S3 in the snow, I seem to have no traction at all, 4 tyres on about 1000 miles ago too so that's not an issue. When I boot it in first in the wet I get loads of wheelspin and the only way to stop it is to come off the accelerator. I had the car on VAGCOM a few month back and it showed up no faults. I don't know what to do :(
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  22. S90GAV
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    S90GAV Member

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    i cannot get mine to wheel spin at all in the wet, just grips and grips
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  23. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    Don't forget tyre choice here... Quattro or not, if you have sports tyres that have a tread pattern more suited to dry or wet conditions, don't expect them to have any grip in snow... only block pattern tyres will have any form of 'grip', anything will vary from some to worse than useless...

    The tyres I have on at the moment are Yokohama Ice Guard IG721's and are pretty good in mud, snow and ice..

    [​IMG]

    <tuffty/>
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  24. S90GAV
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    S90GAV Member

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    My Uni Royal RainSports are super in rain/mud/snow :)
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  25. JS1500
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    JS1500 Howdy

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    Are yours RainSport 2s?
    If so, I was thinking of getting the same, heard very good things about them. Even in 'summer' it rains enough here to warrant them!
    Supposedly they're great in the dry too...?
    #25
  26. mhr1972
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    mhr1972 Member

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    The Quattro is back!!!!!!!!!!!!! It was the earthing strap on the rear diff. I cannot believe it. This is a dearler service car and must have been like this for years. What a difference. Thankyou all to your advice and suggestions. Those who look under yours regular, check the old strap?!
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  27. Dani_B19
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    Dani_B19 Audi-sports own special child.

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    A S3 will wheel spin on compacted snow thats turned to ice wont it?
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  28. Dani_B19
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    Dani_B19 Audi-sports own special child.

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    You serious, how can something so simple cause so much trouble.

    Where abouts is the earthing strap located?
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  29. S90GAV
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    S90GAV Member

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    Yer rainsport2's they have been a great tire all round for me
    #29
  30. AndyMac
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    AndyMac Moderator Staff Member Moderator

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    A quattro won't wheelspin on anything, regardless of tyre choice or ice or snow. That's the whole point of it. If it's working properly it won't allow the wheels to spin more than a split second. If no wheel has any grip then the car simply won't move.
    #30
  31. Dani_B19
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    Dani_B19 Audi-sports own special child.

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    Looks like my quattros shot then.
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  32. The Doctor
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    The Doctor Well-Known Member

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    Mine's fine but I'd like to know where the earthing strap is for future reference. Can you describe where it is & what it looks like? Any pics?
    #32
  33. dela
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    dela Member

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    no the ESP wont allow the wheels to spin if it feels it slipping, turn off the ESP and you have spinning quattro. if you have ESP audi tell you in the manual to turn it off in snow and ice otherwise should you come to a steep hill and you need to give it some juice to get up it the ESP will kick in at the slightest spin and you'll slide back down the hill.
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  34. fingermouse
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    fingermouse thats me

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    Yup tried my S3 on a hill with ESP on and she went nowhere switched it off and it was like there was no snow on the road It just set off. :)
    #34
  35. Dani_B19
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    Dani_B19 Audi-sports own special child.

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    Are so mine could be fine because i dont have switchable ESP.
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  36. Essflee
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    Essflee Active Member

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    It is easy to spin all 4 wheels on snow or ice is you want to...
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  37. Kingston
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    Kingston Member

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    MMM this is a good interesting thread.
    Ok in snow if i put my foot down I wheel spin also in the wet it does it.
    If i apply the gass slowly it grips and grips??
    I have wondered about my Haldex a few times if its working properly etc.
    Sometimes I think it is sometimes I don't.
    Vag com shows no faults anywhere.
    I have heard a Haldex service could sort it?
    Help very appreciated.
    #37
  38. Westy
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    Westy Double Dark Side! Diesel & 8P

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    I had a heavily corroaded earthing srap on my haldex but it didn't cause any issues. I got it changed when I had my last service in september. The part is only about £3 and takes a few mins to fit apparently.
    #38
  39. Kingston
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    Kingston Member

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    £3 sounds good lol so you reckon that may do the trick? spent plenty on her. Just had to change 2 split hoses on turbo and have ordered Blue silicone air intake hose and DV relocation kit onto cold side.
    #39
  40. Dani_B19
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    Dani_B19 Audi-sports own special child.

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    When mine goes in for a service im going to check that.
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