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Brake bleeding - Where can there be air?

Discussion in 'A3/S3/Sportback (8P Chassis)' started by just017, Nov 15, 2011.

  1. just017
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    just017 Member

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    [Nov 15, 2011]
    Recently my ABS pump went wrong, got a replacement off ebay and in terms of fault codes, it works, I decided to fully flush the brake system. So, all the fluid out, I then used a pressure bleeder and filled the system up again with fresh fluid, bled all 4 callipers (several times) but still the brake pedal is only about 50% effective. Just to note, each time i have used Vag Com to purge the ABS pump.

    Are there any other nipples to bleed the system? If so where.

    Regards
    #1
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  3. swatchuk
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    swatchuk Member

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    [Nov 15, 2011]
    At a guess from my 8L S3 when i did this, the master cylinder will need bleeding too. I'd imagine the 8P is the same. I'm sure someone will verify whos in the know.
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  4. Khufu
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    Khufu Active Member

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    [Nov 16, 2011]
    I dont think there is any more, I had that problem on my old 8L one but when I suggested it to somebody they confirmed there wasnt one any more. Worth a look anyhow, was an 8mm IIRC.
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  5. just017
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    just017 Member

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    [Nov 16, 2011]
    I couldn't see a nipple on the MSC. Would the fact that's it's DSG mean maybe there is another slave cylinder for the clutch?
    #4
  6. FranA3
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    FranA3 events moderator Regional Rep

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    [Nov 16, 2011]
    i had major problems when i had a rear brake calliper replaced it was really bad pedal for ages then all of a sudden it just came back to normal , the garage bled them 4 times and me and my mate did them 3 times but they were exactly the same after each time , hope you get it sorted fella
    #5
  7. L80EWY
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    L80EWY Member

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    [Nov 16, 2011]
    I've just replaced my rear calliper and now i can't get my pedal to go back to normal even though it's been bled a few times
    #6
  8. FranA3
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    FranA3 events moderator Regional Rep

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    [Nov 16, 2011]
    they are a nightmare mate mine just came back to normal all of a sudden don't know how but just came back to normal one day I'm guessing the air had worked its way up to the top
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  9. Yohan87
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    Yohan87 Member

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    [Oct 8, 2012]
    #8
  10. MrLapou
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    MrLapou Well-Known Member

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    [Oct 8, 2012]
    In stead of bleeding, why not try this.. take lid off the brake fluid reservoir, then push the calliper pistons back to force the fluid back up through the system.
    #9

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