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Audi Workshop Service and Repair Manuals

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Removing and installing brake pads > < Rear brakes C41/ C43

A4 Mk2

Servicing brake calipers
Servicing brake calipers
Rear brakes with automatic adjustment
  Note
t  Install all parts supplied in repair kit.
t  After replacing brake pads, depress brake pedal firmly several times with vehicle stationary so that the pads are properly seated in their normal operating position.
t  To draw off brake fluid from brake fluid reservoir use a bleeder bottle which is used only for brake fluid. Brake fluid is poisonous and must on no account be sucked out with the mouth using a hose!
t  Brakes can be checked on any commercially available brake dynamometer, provided that the driving speed of the two driving rollers is no higher than 5.5 km/h.
   
1 - Hexagon bolt, self-locking, 35 Nm
q   Always renew
q   When loosening and tightening, counter-hold on guide pin
2 - Brake caliper housing
q   Remove before renewing brake pads
q   Do not twist hose when fitting
q   Do not disconnect brake hose when changing brake pads
q   Servicing brake calipers
3 - Brake pads
q   Always renew on both sides of axle
q   Do not disconnect brake hose when changing brake pads
q   Removing and installing → Chapter
q   Checking pad thickness: → Booklet803
q   Different versions available → ETKA
4 - Pad retaining spring
q   Always renew when changing pads
5 - Wheel bolts
q   Fitting wheels → Wheels and tyres; Rep. Gr.44
6 - Torx bolt
q   Tightening torque: 5 Nm
7 - Brake disc
q   Always renew on both sides of axle
q   Detach brake caliper prior to removing
q   Lubricate contact surfaces between brake disc and wheel hub with polycarbamide grease -G 052 142 A2-.
q   Make sure there is an adequate reserve to allow for wear
q   Allocation → Chapter
q   Thickness → Chapter
8 - Hexagon socket head bolts, 75 Nm
q   M10×60
q   Always renew
9 - Brake carrier with guide pins and protective caps
q   Replacement carriers are supplied assembled and with sufficient grease on guide pins
q   If protective caps or guide pins are damaged, renew using repair kit. Use grease sachet supplied to lubricate guide pins.
10 - Banjo bolt, 45 Nm
11 - Brake line with banjo union
q   Do not twist hose when fitting
q   Unscrew from brake carrier to replace brake pads
q   Do not twist hose when fitting
q   Do not disconnect brake hose when changing brake pads
q   Servicing brake calipers
12 - Seals

   

Removing and installing brake pads > < Rear brakes C41/ C43