Front Brakes Assembly Overview, with Brake Pad Wear Display
Front Brakes Assembly Overview, with Brake Pad Wear Display
• After replacing brake pads, depress brake pedal several times firmly to properly seat brake pads in their normal operating position.
• Use Brake Charger/Bleeder Unit (VAS 5234) to extract brake fluid from brake fluid reservoir.
• Before removing a brake caliper or disconnecting a brake hose, the brake pedal loading device (V.A.G 1869/2) should be installed (relieve pressure).
1 Bolt
• 4 Nm
2 Brake Disc
• Ventilated inside, 288 mm diameter, 15 inches
• Ventilated inside, 312 mm diameter, 16 inches
• Thickness: 25 mm
• Wear limit: 22 mm
• Replace both brake discs on each axle.
• Remove brake caliper before removing.
3 Brake Pads
• Thickness: 14 mm without backing plate
• With front brake pad wear sensor.
• When wear limit is reached (limit: approximately 4 mm) the brake system indicator lamp (K118) lights up in the instrument cluster. Refer to => [ Level Control System Indicator Lamps ] Level Control System Indicator Lamps.
• Wear limit: 2 mm with backing plate
• Check brake pads, very thorough maintenance.
• Replace both brake discs on each axle.
• Removing and installing, refer to => [ Brake Pads ] Brake Pads.
4 Retaining Spring
• Insert in both holes of brake caliper.
5 Brake Carrier
• Bolt to wheel bearing housing.
• Removing and installing, refer to => [ Brake Carrier ] Brake Carrier.
6 Brake Caliper
• Do not unscrew brake hose when replacing brake pad.
• Removing and installing, refer to => [ Brake Caliper ] Brake Caliper.
• Servicing, refer to => [ Front Brake Caliper Assembly Overview ] Front Brake Caliper Assembly Overview.
7 Guide Pins
• 30 Nm
8 Cap
• Remove
9 Brake Hose with Ring Connection and Banjo Fitting
• 35 Nm
10 Bolt
• 200 Nm
• Clean if using again.
11 Bolt
12 Bracket
13 Wheel Bearing Housing
• With fastened brake carrier.
14 Front ABS Wheel Speed Sensor
• Clean the inside of the hole and coat it with hot bolt paste (G 052 112 A3) before installing the sensor.
• Removing and installing, refer to => [ Front ABS Wheel Speed Sensor ] Front ABS Wheel Speed Sensor.
15 Bolt
• 8 Nm
16 Cover Plate
• Removing and installing, refer to => [ Cover Plate ] Cover Plate.
17 Bolt
• 12 Nm
18 Wheel Bearing/Wheel Bearing Unit
• The ABS sensor ring is installed in the wheel bearing.