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s4 brakes

andytdi Mar 31, 2008

  1. andytdi

    andytdi New Member

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    Hello all,

    Im thinking about up grading my brakes on my 1.9tdi se 1996 audi a4 avant.
    Iv come across a set of s4 brakes, can anybody tell me what diametre s4 dics are and there thickness?
    would i be able to use my calipers with the s4 caliper brakets or are the dimentions slightly different.

    any advice welcome thanks for your time

    Andy
     
  2. Markey

    Markey Active Member

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    Don't think the carriers will fit as the S4 hubs are different.
     
  3. stapo69

    stapo69 All hail the mighty quattro!

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    The discs are 321mm diameter, 30mm thick. I believe, although don't hold me to that!
     
  4. Trig

    Trig New Member

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    Yup, got a full set in the garage.
     
  5. Dan Gliballs

    Dan Gliballs Active Member

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    I have a pair of standard 1999 S4 calipers for sale now if you get stuck ;)
     
  6. macca

    macca Member

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    s4 caliper brackets not compatible with your caliper.

    s4 calipers and brackets won't fit to your hubs.

    s4 hubs and bearings, may not be compatible with your driveshafts.

    so probably best upgrade is 312mm discs from 2002 a4 3.0Q

    312mm caliper brackets from vagparts/seat leon/audi TT/Golf to mount your calipers on, i think (this works for 1.8T, i think calipers maybe the same)
     
  7. docurley

    docurley Moderator Staff Member Moderator

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    They wont fit full stop.
     
  8. andytdi

    andytdi New Member

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    Thanks for all your help guys,
    im going to order the 312mm carriers and get some 312mm discs from the 2002 audi at 3.0 Q

    Regards
    Andy
     
  9. andytdi

    andytdi New Member

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    just a quick up date,

    iv done some research into the sizes of various Audi discs.

    the current sizes are as follows (audi a4 1996 1.9 tdi se)

    O/D 288
    Thickness 25
    Height 46
    Front Bore 68
    Rear Bore 135
    PCD 112

    The only 312mm discs that come close to fitting have the following sizes

    O/D 312
    Thickness 25
    Height 46
    Front Bore 68
    Rear Bore 158 Different
    PCD 114.3 Diffrerent


    However im just going to machine a rear spiget ring for the discs with a tight tolerance and uses a press to slide them in.
    Then ill use a rotary index table to re PCD the discs to 112mm.

    That is unless anybody knows an easyer way!

    Thanks
     
  10. macca

    macca Member

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    but the b6 a4 3.0 quattro discs have a pcd of 112mm, not sure about the height, but plenty people have fitted them.
     

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