Servicing rear wheel brake (disc brake) — AUDI

Special tools and workshop equipment required

V.A.G 1331 Torque wrench
V.A.G 1332 Torque wrench
V.A.G 1410 Torque wrench
V.A.G 1869/2 Brake pedal depressor

Notes:

After replacing brake pads, depress brake pedal firmly several times with vehicle stationary so that the brake pads are properly seated in the normal operating position.
To draw off brake fluid from the reservoir, use a bleeder bottle which is used only for brake fluid. Brake fluid is poisonous and must on no account be siphoned by mouth through a hose.
Brake pedal depressor VAG 1869/2 must be fitted before removing a brake caliper or disconnecting a brake hose from the brake caliper.

Cross-head screw, 4 Nm

Brake disc
Thickness 9 mm
Wear limit 7 mm
When worn, always renew both sides

Cap
Removing and installing

=> Running gear, Axles, Steering; Repair group 42; Servicing wheel bearings; Removing and installing wheel bearing/wheel hub unit, vehicles with disc brakes
Running gear, Axles, Steering
Servicing wheel bearings
Removing and installing wheel bearing/wheel hub unit, vehicles with disc brakes

Double hexagon nut, self-locking, 175 Nm
Renew each time after removing

Wheel hub with wheel bearing and rotor
Replace only as complete unit
Removing and installing

=> Running gear, Axles, Steering; Repair group 42; Servicing wheel bearings; Removing and installing wheel bearing/wheel hub unit, vehicles with disc brakes
Running gear, Axles, Steering
Servicing wheel bearings
Removing and installing wheel bearing/wheel hub unit, vehicles with disc brakes

Hexagon bolt, 60 Nm
With dished washer

Cover plate
Stub axle
Handbrake cable
Adjusting handbrake
=>Page
46-57
.

Axle beam
ABS speed sensor
Before inserting sensor, clean fitting hole inner surface and coat with lubricating paste G 000 650.

Hexagon socket-head bolt
8 Nm
Hexagon socket head bolt,
65 Nm

Brake carrier with guide pin and protective cap
Supplied as replacement part assembled with sufficient quantities of grease on guide pins
If protective caps or guide pins are damaged, install repair kit. Use grease sachet supplied to lubricate guide pins.

Brake hose/brake pipe
With banjo bolt and sealing rings
Tightening torque of banjo bolt to brake caliper 35 Nm
Do not disconnect brake hose when changing brake pads

Hexagon bolt, Self-locking, 35 Nm
Replace

Brake caliper
Do not disconnect brake hose when changing brake pads
Removal:

Brake pads -Item
46-52
Fit brake pedal depressor V.A.G 1869/2
Brake hose -Item
15
- Detach from brake caliper

Installation:

Brake pads -Item
46-54
Brake hose -Item
15
- Attach to brake caliper
Remove brake pedal depressor V.A.G 1869/2.
Bleed brake system => Page
47-21

Repairing => Page
47-13
The handbrake cable must be adjusted following repair or replacement.
Adjusting handbrake =>Page
46-57

Brake pads
Thickness 12 mm
Checking thickness:

=> Maintenance manual; Description of operations; Front and rear brake pads: check thickness

Always replace all components on an axle
Removing and installing
=>Page
46-52
.
Wear limit: 7.5 mm including backplate
Before fitting the pads, clean the pad guide surfaces and apply a coat of lithium grease G 052 142 A2.

Pad retaining spring
Always replace when changing pads