Brake caliper, 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 brake with automatic adjustment
NOTE:
- Only install complete 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!
- Brake testing can be done on all commercially-available brake test stands, as long as the drive speed of both test stand drive rollers is not more than 5.5 km/h.
1 - Hex socket head screw with damper, self-locking, 35 Nm
NOTE:
- Do not loosen screw with damper when changing brake pads!
- Always replace
- When loosening and tightening counter hold on guide pin
2 - Hex socket head screw, self-locking, 35 Nm
- Always replace
- When loosening and tightening counter hold on guide pin
3 - Brake caliper housing
- Unclip parking brake cable from caliper. → Parking brake cables (AWD vehicles), removing and installing
- Fold upward to replace brake pads.
- Hose must be installed free of twists
- Do not disconnect brake hose when changing brake pads
- Brake caliper, servicing
4 - Brake pads
- Always replace both sides
- Do not disconnect brake hose when changing brake pads
- To change brake pads, only remove lower brake caliper bolt, item 2, and fold caliper up.
- Removing and installing → Brake pads, removing and installing
- Checking brake pad thickness: 803
- Different versions ETKA
5 - Brake pad retaining spring
- Always replace when changing pads
6 - Wheel bolts
- Mounting wheels → 44 - WHEELS, TIRES, VEHICLE ALIGNMENT
7 - Torx bolt
- Torque specification 5 Nm
8 - Brake disc
- Always replace both sides
- Remove brake caliper prior to removing
- Coat contact surfaces between brake disc and wheel hub with Polycarbamide grease G 052 142 A2 .
- Ensure sufficient wear limit
9 - Hex socket heat screw, 75 Nm
- M10x60
- Always replace
10 - Brake carrier with guide pins and protective cap
- Supplied as replacement part assembled with sufficient grease on guide pins
- If protective caps or guide pins are damaged use repair kit. Use supplied grease packet to lubricate guide pins.
11 - Banjo bolt, 45 Nm
12 - Brake line with banjo fitting
- Hose must be installed free of twists
- To replace brake pads, unfasten from brake carrier
- Do not disconnect brake hose when changing brake pads
- Brake caliper, servicing
13 - Seals