Removing and installing brake caliper piston, single-piston brake — AUDI

🧭 Before you start

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

• Special tools named: T10146/6

Don't miss

• When removing ensure that the bore of the cylinder is not damaged.
• The surfaces of the piston and seal must be cleaned only with methylated spirits and then dried.
• Before installing, lightly lubricate piston and seal with lithium greaseG 052 150 A2.

📋 Procedure

1. Force piston out of brake caliper using compressed air via threaded hole for brake hose (arrow).
2. Lever off protective cap from brake caliper using removal wedge3409.
3. Remove seal using removal wedge3409. [Note: When removing ensure that the bore of the cylinder is not damaged.]
4. The surfaces of the piston and seal must be cleaned only with methylated spirits and then dried.
5. Before installing, lightly lubricate piston and seal with lithium greaseG 052 150 A2.

6. Insert seal in brake caliper.
7. Fit protective cap (A) in assembly tool T10146/6(item 1).
8. Using assembly tool (1) and piston resetting tool (2), press protective cap onto brake caliper so that it is fully in contact with brake caliper all around.
9. Checking correct seating of protective cap:
10. Press piston lightly onto protective cap and lock it in this position using removal wedge3409(item 2) or similar.
11. Blow out protective cap with compressed air (maximum 3 bar) (1). The protective cap will then locate around the piston.
12. ⚠ Keep the piston straight to avoid damaging the seal. — Press piston into brake caliper using piston resetting tool (1).

Other AUDI procedures

• Removing and installing toothed belt – Audi · 56 torque figures
• Removing engine – Audi A8 D3 · 41 torque figures
• Removing camshaft timing chain from camshafts – Audi A6/A7 C7 · 38 torque figures
• Installing engine – Audi A8 D4 · 36 torque figures
• Removing and installing camshaft timing chain · 29 torque figures
• Cleaning evaporator using pressure-feed spray gun V.A.G 1538 and spray lance
• Removing and installing selector mechanism (vehicles up to 05.99)
• Removing and installing wiper arms – Audi Q7 · 1 torque figures
• Removing and installing catalytic converter – Audi A1
• 5-speed manual gearbox 01A, four-wheel drive — Renewing oil seal for flange shaft/propshaft on gearbox