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Pushing back rear caliper pistons?

Discussion in 'A3/S3/Sportback (8P Chassis)' started by Jonay, Oct 22, 2010.

  1. Jonay

    Jonay Member

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    Anything special that I need to do for this?

    I had a quick go during the weekend past but I couldn't push back the piston at all using a G clamp. Didn't have time to fanny about with opening the bleed nipple etc.

    I've read elsewhere that because its the back and its also the E-Brake then it could be threaded?

    Just trying to save some pennies! :)
     
  2. paddy

    paddy Audi=No fault code, no idea

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    G clamp !!!!!!!!! Jeeez. get the pison square and it should move back under the load of its own seal so slacken the bleed and try again. If not pump it a fraction to square it up then push back with your thumbs.
     
  3. Jonay

    Jonay Member

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    Question, engine on or off?

    Cause there is absolutely no chance that the above will happen if the engine is off!

    It was simple enough to do with my Corsa, though I don't know why is is so different?
     
    #3 Jonay, Oct 22, 2010
    Last edited: Oct 22, 2010
  4. Khufu

    Khufu Well-Known Member

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    The rear pads need rotated in using a tool, there was a thread about it a few weeks back IIRC.

    The electronic brake system need the motors retracted using VCDS & then then pistons are pushed in. This system isnt fitted to the A3 - unless NHN has managed the retrofit & kept quiet LOL
     
  5. paddy

    paddy Audi=No fault code, no idea

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    Sorry i see you said back brakes so forget everything i said :) i will shut up now :)
     
  6. bengal

    bengal Member

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  7. Jonay

    Jonay Member

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    Reading the comments, some may need a right hand one too?

    or does the A3 only require a left hand tool?
     
    #7 Jonay, Oct 22, 2010
    Last edited: Oct 22, 2010
  8. Jonay

    Jonay Member

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  9. bengal

    bengal Member

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    It works by rotating the piston as well as pushing it in. Not sure about what direction you need though but on my 8l a3 it was the one in the link. If you went to a motor factors they should be able to tell you which one you need. As well as the adaptor.
     
  10. BASS 666

    BASS 666 BMW aye right dead on..

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    i screwed both mine clockwise with the wind in tool just take the cap off the brake fluid reservoir.
     
  11. paddy

    paddy Audi=No fault code, no idea

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    I see you have made no friends by your profile ? where do you live ? Got any buckets for sale ? PMSL

    Oh and i have been thanked 240 times because i try and help......I see you have been thanked once and i think that was me......lol
     
    #11 paddy, Oct 22, 2010
    Last edited: Oct 22, 2010
  12. PH1L

    PH1L Gievf Buckets
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    the rear callipers need spun back using a tool
     
  13. VWAddict

    VWAddict Member
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    You can damage the threads by trying to use a G-clamp, so be very careful. -If you've bogged the threads up, you MIGHT have to replace the caliper... depending on how much force you used.

    I've seen a rear caliper on a MkIV buggered up using exactly that method... -it had to be replaced.

    Keith
     
  14. Jonay

    Jonay Member

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    Balls. :|
     
  15. gary3306

    gary3306 Active Member
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    Jonay, whereabouts are you mate. If you're close I could do it for you at my workshops (unless the car is already in bits of course :sm4:). I am in Northumberland.
     
  16. Jonay

    Jonay Member

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    Bit far I think, Aberdeenshire!

    Thanks a lot anyway, maybe if i need anything done in future! (void bushes? they need done!)
     

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