Overview - Front Brake Caliper, FN3 And 1LT Brake Caliper

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NOTE:

Install The Entire Repair Kit When Servicing.

New Brake Calipers Are Filled With Brake Fluid And Are Pre-Bled.

Apply a thin coat of Assembly Paste:G 052 150 A2 to brake cylinders, pistons and seals.

Fig 1: Exploded View Of Front Brake Caliper, FN3 & 1LT With Components

Courtesy of AUDI OF AMERICA, LLC

Caps
- Remove the guide pins to remove.
- Insert the guide pins after installation.
Guide Pin
- 30 Nm
- Replacing. Refer to BEARING BUSHING AND GUIDE PIN, REPLACING, 1LT .
Breather Valve
- 13 Nm
- Apply a thin coat of Assembly Paste: G 052 150 A2 to the threads before screwing in.
Protective Cap
- Install on the bleeder valve
Brake Caliper Housing
Spring
- Insert With Both Ends In Brake Caliper Housing Holes
  NOTE:
  The spring must be pressed under brake carrier after it is inserted in both holes. If improperly installed, the wear of the outer brake pad cannot be adjusted, thereby increasing brake pedal travel.
Bearing Bushing
- Insert in brake caliper housing
- Replacing. Refer to BEARING BUSHING AND GUIDE PIN, REPLACING, 1LT .
Brake Carrier
- Bolt to brake caliper housing
Seal
- PROTECTIVE CAP AND SEAL, REMOVING
Piston
- Apply a thin coat of Assembly Paste:G 052 150 A2 to the piston beforehand
- Diameter 57 mm.
Protective Cap
- Do not damage the piston when inserting it.
- PROTECTIVE CAP AND SEAL, REMOVING