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Rear brake work - caliper bracket

Discussion in 'Audi S4/A4/A4 Cab (B7 Chassis)' started by todgerino, Apr 29, 2011.

  1. todgerino
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    todgerino New Member

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    [Apr 29, 2011]
    Sorry for the boring thread question - just need a bit of advice.

    I'm swapping rear discs/pads and servicing calipers. Needed something to do tomorrow to avoid the 10 hours of Royal wedding...Ive already done the fronts a couple of weeks ago which went fine.

    Made a start tonight, but the prob I've got is with the two (tight) caliper bracket mounting bolts - the lower bolt seems tricky to get to - any advice on how to get to it?

    Also if anyone can confirm the hex bolt is 8mm? - feels like it, but wondering why they werent just made 7mm like the fronts, and dont want to round it off.

    Any help much appreciated, as ever
    cheers
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  3. adamss24
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    adamss24 Well-Known Member

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    [Apr 29, 2011]
    They are hex 8mm and its a good ideea to soak them in wd40 for a few days prior attempting to work on. The heads are easy to round off, best to use a long breaker bar and a decent 8mm hex socket from Halfords (the Professional range is exceptionally good and has lifetime guarantee). If you round the head off then you will need a very good long nose pliers (Bahco ones from local B&Q or good plumbing outlets) and with the help of a plumbers torch (good quality Rothenberger one with MAPP gas- this is what i use) they should come out. If you strip the bolts you will have to renew them (about 4 quid each from local dealer)...
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