Rear Brake Pads
Rear Brake Pads
Special tools, testers and auxiliary items required
• Torque Wrench (V.A.G 1331)
• Torque Wrench (V.A.G 1332)
• Vehicle Diagnosis, Testing And Information System (VAS 5051B) or (VAS 5052)
• Socket (T40065)
• Socket (T40066)
Special tools, testers and auxiliary items required
• Piston Resetting Tool (T10145)
Removing
• When removing, mark brake pads that will be used again. Install in the same position, otherwise braking effect will be uneven!
• Operating the electromechanical parking brake again after a long drive is recommended.
• Brake pad play is automatically adjusted every 1000 km if the EPB is not operated in this distance.
• The brake disc is secured with a Phillips head bolt.
- Raise vehicle.
- Remove wheels.
CAUTION!
If brake pads are ceramics, wheel must not fall on brake disc, otherwise it will be irreparably damaged. To remove/install wheel, insert two assembly pins in wheel bolt mount. The long assembly pin is in the upper position.
- With ignition off, connect Vehicle Diagnosis, Testing And Information System (VAS 5051B) to the 16-pin diagnostic connector on the vehicle and select parking brake with (VAS 5052)"address word" 53.
• Ignition on
• Release parking brake
• Coding check and reported if necessary.
• DTC memory interrogated, errors shown corrected and DTC memory erased.
Shown on VAS 5051 display:
- Select function "53 - Parking brake".
- Select function "04 - Basic setting".
Shown on VAS 5051 display:
• The request to enter a display group number appears in display field - 1 -.
• An entry keypad is shown in display field - 2 -.
When installing new or old brake pads
- Using the entry keypad, enter in display field - 2 - the "7" for the display group number and confirm by pressing the "Q button". (Reset pistons)
- To exit the entry template, press the green Arrow button at the lower left.
• Ignition off
• A Phillips head screw - arrow - secures the brake disc.
- Dismount tires
- Remove attachment bolts from brake caliper housing, counter-hold guide pins to do so.
• Actuator or brake system connector must not be disconnected. (otherwise, a fault will be saved)
• Do not pull on brake hose or electrical wiring.
- Remove brake caliper sideways or hang on body.
- Remove brake pads
- Remove guide clamps
- Push back the brake piston.
Special tools, testers and auxiliary items required
• Piston Resetting Tool (T10145)
• To remove brake discs on 16" brake systems, brake carrier must be removed.
• Check brake discs, replace if necessary.
Remove brake carrier:
- To remove brake carrier lower connection, use Socket (T40065) for the left side and Socket (T40066) for the right side.
Installing
Clean brake caliper with mineral spirits exclusively.
- Insert brake pad retaining springs
- Insert brake pads.
- Make sure that the brake pads are located correctly in the anti-rattle springs - arrows -.
• The next step only applies to vehicles on which the brake carrier must be disassembled for removal.
- To install lower connection, use Socket (T40065) or Socket (T40066).
- Secure brake caliper housing using new self-locking bolts.
• The repair kit includes four self-locking hex bolts which must be installed in all cases.
Shown on VAS 5051 display:
• The request to enter a display group number appears in display field - 1 -.
• An entry keypad is shown in display field - 2 -.
- Using the entry keypad, enter in display field - 2 - the "6" for the display group number and confirm by pressing the "Q button". (guide pistons together)
- To exit the entry template, press the green Arrow button at the lower left.
CAUTION!
If brake pads are ceramics, wheel must not fall on brake disc, otherwise it will be irreparably damaged. To remove/install wheel, insert two assembly pins in wheel bolt mount. The long assembly pin is in the upper position.
- Mounting wheels.
- Check brake fluid level, and fill if necessary.