Renewing brake caliper (1KU): Audi Q3

🧭 Before you start

Fits: Audi Q3 (8U, 2011–2018); platform code 84

• Opens: brake fluid
• Renewed: bolts for brake caliper, seal for parking brake motor

Don't miss

• This closes the valves in the brake master cylinder and stops the brake fluid reservoir from running empty.
• The brake pedal actuatorV.A.G 1869/2 must not be removed.
• Remove securing bolts for brake caliper (counterhold guide pins).
• Renew bolts for brake caliper.Renew seal for parking brake motor.New brake calipers are filled with brake fluid and are pre-bled.
• Tighten new securing bolts for brake caliper (counterhold guide pins).

📋 Procedure

1. Remove relevant rear wheel Running gear, axles, steering44Wheels, tyres.
2. Remove bolts (arrows) for parking brake motor.
3. Detach parking brake motor from brake caliper and place to one side, leaving electrical connector attached.
4. Insert brake pedal actuatorV.A.G 1869/2 between brake pedal and driver's seat. Depress brake pedal at least 60 mm. [Note: This closes the valves in the brake master cylinder and stops the brake fluid reservoir from running empty.]
5. Detach protective cap on bleeder screw of brake caliper.

6. Fit bleeder hose (1) of reservoir onto bleeder screw.
7. Open bleeder screw to relieve pressure in hydraulic system.
8. Close bleeder screw and remove reservoir. [Note: The brake pedal actuatorV.A.G 1869/2 must not be removed.]
9. Disconnect brake line from brake hose and brake caliper.
10. Remove securing bolts for brake caliper (counterhold guide pins).
11. Remove brake caliper from brake carrier. [Note: Renew bolts for brake caliper.Renew seal for parking brake motor.New brake calipers are filled with brake fluid and are pre-bled.]
12. Slide brake caliper over fitted brake pads.
13. Tighten new securing bolts for brake caliper (counterhold guide pins).
14. Install parking brake motor .
15. Remove brake pedal actuatorV.A.G 1869/2.
16. Bleed brake system (only at wheel where caliper was detached and brake line disconnected) . [Note: Bleed brake system (only at wheel where caliper was detached and brake line disconnected). If the brake pedal still feels "“soft”", bleed the complete brake system .]
17. With ignition switched off, connect vehicle diagnostic tester to diagnostic connection in vehicle (arrow).
18. Switch on ignition.
19. After entering vehicle identification data, select Guided Functions mode.
20. Perform basic setting:
21. Continue to follow the instructions on the vehicle diagnostic tester display.
22. Fit rear wheels Running gear, axles, steering44Wheels, tyres.

🎬 Related video tutorial

Independent AUTODOC tutorial for the same job, filmed on a different model (A3 2 (8PA)) — the technique carries over, the fasteners and figures on this page are the ones for your car.

How to change rear brake caliper on AUDI A3 2 (8PA)

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