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Renewing rear brake caliper > < Rear brakes with electronic parking brake - exploded view

A4 Mk3

Detaching and attaching rear brake caliper with brake carrier
Detaching and attaching rear brake caliper with brake carrier
Detaching
Special tools and workshop equipment required
t  Torque wrench -V.A.G 1332-
t  Ratchet -V.A.G. 1332/1-
t  Vehicle diagnosis, testing and information system -VAS 5051B- or -VAS 5052-
t  Ratchet adapter
–  With ignition switched off, connect vehicle diagnostic, testing and information system -VAS 5051B- or -VAS 5052- to 16-pin diagnostic connector in vehicle.
   

  Note
t  Switch on ignition.
t  Parking brake released
t  Coding checked and rectified if necessary
t  Fault memory interrogated, indicated faults eliminated and fault memory erased.
–  Select function „053 - Parking brake“.
–  Select function „006 - Basic setting“.
   
Display on vehicle diagnosis, testing and information system:
t  The prompt to enter a display group appears in display zone -1-.
t  Display zone -2- shows a keypad.
–  Enter „007“ as „display group number“ via the keypad in display zone -2- and confirm entry with the „Q“ key. (resetting piston).
–  Press the green arrow button (bottom left) to exit from the input mask.
–  Switch off ignition.
–  Raise the vehicle.
–  Remove wheels.
–  Unclip brake hose and electrical wire from retainer on hub carrier.
–  Remove bolts -16 and 17- on brake carrier.
  A87-0318

–  Detach brake caliper with pads and brake carrier.
Do not leave brake caliper and brake carrier hanging from brake hose but secure them to bodywork using a suitable cable tie or wire. Take care that brake hose is not damaged by weight of brake components.
  WARNING
Do not press the footbrake or apply the electronic parking brake when the brake caliper is removed.
Installing
Use new bolts → ETKA.
–  Carefully press brake caliper and brake carrier (with brake pads fitted) over brake disc.
–  Secure brake carrier with new bolts -16 and 17-.
   

  Note
Use extension (commercially available) to tighten bottom bolt -16-. Top bolt -17- can be tightened without extension. Wheel housing liner must be slightly pressed aside.
–  Clip brake hose and electrical wire into retainer on hub carrier.
  Note
Make sure that brake hose is properly clipped into retainer on hub carrier and securely seated. Otherwise, there is a risk that the brake hose will not remain in the retainer.
–  Fit wheels.
–  Lower vehicle.
Tightening torque for wheel bolts → Rep. gr.44
–  Switch on ignition.
   
Display on vehicle diagnosis, testing and information system:
t  The prompt to enter a display group appears in display zone -1-.
t  Display zone -2- shows a keypad.
–  Enter „006“ as „display group number“ via the keypad in display zone -2- and confirm entry with the „Q“ key. (Moving piston to original position).
–  Press the green arrow button (bottom left) to exit from the input mask.
  Note
Fault memory interrogated, indicated faults eliminated and fault memory erased.
–  With ignition switched off, disconnect vehicle diagnostic, testing and information system -VAS 5051B- or -VAS 5052- from 16-pin diagnostic socket in vehicle.
  A87-0318

Renewing rear brake caliper > < Rear brakes with electronic parking brake - exploded view