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A3 Quattro Rear Disc Removal

Discussion in 'A3/S3/Sportback (8P Chassis)' started by colinjmatt, Jul 31, 2012.

  1. colinjmatt
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    colinjmatt New Member

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    [Jul 31, 2012]
    I'm trying to find out whether or not the calliper carriers need to be removed to be able to replace the rear discs on a Quattro. I've already had a go at taking them off without removing the carrier without any luck. I've loosened the disc and had it nearlly off, but the edges of the carrier are stopping it. Is there a special method to do this? Or am I wasting my time trying to find a way?

    Do the carriers need to come off it? If so I'll have to take it to a garage as I can't for the life of me release those bolts (I have the M14 spline bit and I've put a fair amount of penetrative oil and strength into it too).
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  3. antmax7
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    antmax7 Member

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    [Jul 31, 2012]
    Have you tried turning it the other way just a thought they might be left hand thread???
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  4. RobinA3
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    RobinA3 Well-Known Member

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    [Jul 31, 2012]
    Yes the carrier does need to come off. They are held on by 2 big splined bolts and you'll need a nice big bar on them - although there isn't much room in there to get the bar into.

    They are a standard thread and not left handed thread.

    I did the rear brakes on my old A3 Quattro and it was a bit of a ***** to do.
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  5. colinjmatt
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    colinjmatt New Member

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    [Jul 31, 2012]
    I was afraid of that. I'll give it a good go when I can next. Either that or send it to the local garage and let them swear at it.
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  6. 5ean
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    5ean S3 Owner VCDS Map User

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    [Aug 1, 2012]
    Carriers normally have to come off for new discs.. If it was pads only you'd be fine :)
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  7. torquemaster
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    torquemaster New Member

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    [Aug 1, 2012]
    It's a pita to take the carrier off. I really advise you to pay for this. M14 bolts are torqued to 90NM (66lb-ft)+90 degrees and this is insane in terms of final torque. You wont be able to move them on jack stands. And yes, you must take the caliper carrier off.
    Last edited: Aug 1, 2012
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  8. bing
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    bing Member

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    [Aug 1, 2012]
    HI
    I have just done the discs and pads all round on my 57 plate 2.0 170 sportback
    and managed to do the rears WITHOUT taking calipers off
    you just jiggle them and they will come off well mine did

    not sure if same rear brakes as yours thou

    fronts 312x25
    rears 255 x 10 i think thrown boxes away now

    cheers bing
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  9. colinjmatt
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    colinjmatt New Member

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    [Aug 2, 2012]
    Right, Think I'm gonna give it one more try then I'm going to pay a monkey with a big wrench to do it for me if I fail.

    Oh, and the discs I have are 286mm
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  10. veeeight
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    veeeight I am a very pretty girl

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    [Aug 2, 2012]
    Impact wrench?
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  11. RobinA3
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    RobinA3 Well-Known Member

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    [Aug 5, 2012]
    Quattro's are different and the carrier does need to come off.

    It can be done on axle stands - i did them on axle stands, you just need a good selection of tools and some epic strength!

    You can get an impact good in there as space is soooooo limited!

    Its a right pain in the arse of a job.
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