Procedures
Rear brakes, electromechanical parking brake (EPB)Brake pads, removing and installing
Special tools, testers and auxiliary items required
- Torque wrench V.A.G 1331
- Torque wrench V.A.G 1332
- Vehicle diagnostic, test and information system VAS 5051
- Socket T40065
- Socket T40066
Removing
Note:
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.
- With ignition off, connect Vehicle Diagnosis, Testing and Information System VAS 5051 to 16-pin diagnostic connector on vehicle and select parking brake with "Address word" 53.
Note:
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" .
- Select function "10 to code after replacing control module".
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 entry keypad, enter in display field - 2 - the "7" for "Display group number one and confirm by pressing " Q button. (Reset pistons)
- To exit entry template, press green Arrow button at lower left.
Note:
Ignition off
The brake disc is secured with a Phillips head bolt - 1 - .
- Remove tires
- Remove attachment bolts from brake caliper housing, to do so counter-hold guide pins.
Note:
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
- Press brake pistons back by hand.
Note:
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 brake pads are located correctly in anti-rattle springs - arrows - .
Note:
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.
Note:
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 entry keypad, enter in display field - 2 - the "6" for "Display group number one and confirm by pressing " Q button. (guide pistons together)
- To exit entry template, press green Arrow button at lower left.
- Mounting wheels Wheels and Tires Guide - Repair Group 44
- Check brake fluid level, and fill if necessary.