Disc Brake System: Service and Repair
46 - Brakes - Mechanical components
Rear wheel brakes (disc brakes - front wheel drive), assembly overview
Special tools and equipment
^ VAG 1331 Torque wrench or equivalent
^ VAG 1332 Torque wrench or equivalent
^ VAG 1410 Torque wrench or equivalent
^ VAG 1869/2 Brake pedal depressor or equivalent
Special tools and equipment required
^ VAS 5234 Brake filler and bleeder unit
Note:
^ 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 draw off brake fluid from the reservoir, use brake filler and bleeder unit VAS 5234.
^ Install brake pedal depressor VAG 1869/2 before removing a brake caliper or disconnecting a brake hose from the brake caliper.
1- Phillips-head screw, 4 Nm (35 in lb)
2- Brake disc
^ Thickness 9 mm (0.354 in.)
^ Wear limit, 7 mm (0.276 in.)
^ Thickness 22 mm (0.866 in.)
^ Wear limit 20 mm (0.787 in.)
^ When worn, always replace both sides on an axle.
3- Cap
4- Self-locking 12-point nut, 175 Nm (129 ft. lb)
^ Always replace
5- Wheel hub with wheel bearing and rotor
^ Replace each time after removing
^ Only replace complete
6- Hex bolt, 60 Nm (44 ft. lb)
^ With dished spring washer
7- Splash plate
8- Stub axle
9- Parking brake cable
10- Axle beam
11- ABS speed sensor
^ Before inserting sensor, clean mounting hole inner surface and coat with lubricating paste G 000 650
12- Hex socket head bolt 8 Nm (70 in. lb)
13- Hex socket head bolt, 65 Nm (48 ft. lb)
14- 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 grease packet supplied to lubricate guide pins.
15- Brake hose/brake line
^ With banjo bolt and seals
^ Banjo bolt to brake caliper tightening torque 38 Nm (28 ft. lb)
^ Always use new sealing washers
^ Do not disconnect brake hose when changing brake pads
^ Always replace sealing washers
16- Self-locking hex bolt, 35 Nm (26 ft. lb)
^ Always replace
17- Brake caliper
^ Do not disconnect brake hose when changing brake pads
^ Parking brake cable must be adjusted first after maintenance or replacement.
18- Brake pads
^ Thickness: 16.9 mm (0.665 in.) including backing plate
^ Wear limit: 7.5 mm (0.295 in.) including back plate
^ Always replace both sides on an axle.
19- Pad retaining springs
^ Replace always when changing pads