Brake calipers, servicing
WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2009 Audi S4, 2009 Audi A4, 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
Rear wheel brakes with automatic adjustment
NOTE:
- Install all parts supplied in repair kit.
- After replacing brake pads, depress brake pedal firmly several times with vehicle stationary so that the brake pads are properly seated in their normal operating position.
- To extract brake fluid from the brake fluid reservoir, use a bleeder bottle that only comes into contact with brake fluid. Brake fluid is poisonous and must never be extracted by mouth using a hose!
1 - Self-locking hex bolt, 35 Nm
- Always replace
- Counter hold guide pin when loosening and tightening
2 - Brake caliper housing
- Remove before replacing brake pads
- Do not twist hose when installing
- Do not disconnect brake hose when changing brake pads
- Servicing brake calipers
3 - Brake pads
- Always replace both sides
- Do not disconnect brake hose when changing brake pads
- Removing and installing → Brake pads, removing and installing
- Checking pad thickness:
- Different versions ETKA
4 - Brake pad retaining spring
- Always replace when changing pads
5 - Wheel bolts
- Mounting wheels → 44 - WHEELS, TIRES, VEHICLE ALIGNMENT
6 - Torx bolt
- Tightening torque: 5 Nm
7 - Brake disc
- Always replace both sides
- Remove brake caliper prior to removing
- Lubricate contact surfaces between brake disc and wheel hub with polycarbamide grease G 052 142 A2 .
- Make sure there is sufficient wear limit
8 - Hex socket head bolts, 75 Nm
- M10x60
- Always replace
9 - Brake carrier with guide pins and protective caps
- Replacement carriers are supplied assembled and with sufficient grease on guide pins
- If protective caps or guide pins are damaged, replace using repair kit. Use grease packet supplied to lubricate guide pins.
10 - Banjo bolt, 45 Nm
11 - Brake line with banjo union
- Do not twist hose when installing
- Remove from brake carrier to replace brake pads
- Do not twist hose when installing
- Do not disconnect brake hose when changing brake pads
- Servicing brake calipers
12 - Seals