Front Brakes, 1LW

• Ceramic Brake Rotor, Checking for Damage, refer to CERAMIC BRAKE ROTORS, EVALUATING .
• Ceramic Brake Rotor, Checking for Wear, refer to CERAMIC BRAKE ROTORS, DETERMINING WEAR .

Overview 

Fig 1: Identifying Front Brake Caliper Assembly Overview, Ceramic Brakes

Courtesy of AUDI OF AMERICA, LLC

1. Brake Caliper Bolts
   NOTE:

   It is not necessary to loosen these bolts to remove the brake caliper.

   Only the bolts -10- are loosened and removed.

2. Brake Pad Retaining Spring

   Make sure it is installed in the correct position.

3. Guide Pins

   Push them from the outside toward the inside through the brake caliper and the brake pads.

   NOTE:

   Make sure then fits correctly inside the brake caliper. The groove on the guide pin must fit inside the groove inside the brake caliper.

4. Brake Caliper
   • When doing work, do not allow to hang from brake hose, rather suspend it from the body using bundling wire.
   • Except for "Brake Pads, Removing and Installing " and "Front Brake Caliper, Servicing", no further repairs should made to the brake caliper.
   • Install hose so it is not twisted.
   • Brake allocation, refer to BRAKES PR CODES .
   • Removing and Installing, refer to BRAKE CALIPER .
   • Replacing, refer to BRAKE CALIPER, REPLACING .
5. Brake Pads
   • Wear limit
     NOTE:

     The inner pad is equipped with a cable for the wear indicator.

   • The brake pads may have a protective film on the back of the pad. Peel off the protective foil before installing.
   • Before installing the brake pads, clean the pad guide surface and coat it with a film of Polycarbamide grease .
   • Must always be replaced together on both sides of axle.
   • Removing and Installing, refer to BRAKE PADS .
   • Checking brake pad thickness.
6. Bolt
   • 5 Nm.
     NOTE:

     Replace each time it is removed.

7. Brake Rotor
   • Wear, Determining, refer to CERAMIC BRAKE ROTORS, DETERMINING WEAR .
   • Must always be replaced together on both sides of axle.
   • Remove brake caliper before removing.
   • Coat the contact surfaces between the brake rotor and the wheel hub with polycarbamide grease G 052 142 A2.
   • Brake rotor allocation.
   • Removing and Installing, refer to CERAMIC BRAKE ROTOR .
   • Replacing, refer to CERAMIC BRAKE ROTOR, REPLACING .
8. Cover Plate
   • Removing and Installing, refer to FRONT BRAKE SHIELD .
9. Cover Plate Bolts
   • 9 Nm.
10. Bolts
    NOTE:

    Loosen these bolts to remove the brake caliper.

    Always replace if removed.

    • 190 Nm.
11. Brake Carrier
    • Attach to wheel bearing housing.
    • Bolted to the brake caliper.
    • 196 Nm.
      NOTE:

      The brake carrier is not a replacement part.

12. Brake Piston
    WARNING:

    The brake pistons have different diameters. When re-installing, ensure the respective brake piston is inserted in the correct bore in the brake caliper. The ceramic inserts on the brake pistons serve as heat insulators and must not be removed from the pistons. If the ceramic inserts are damaged, the brake pistons must be replaced for safety reasons.

13. Bracket Bolt
    • 25 Nm
14. Brake Line Connection to Brake Line
    • Brake hose must not be twisted.
    • 14 Nm.
15. Brake Line
    • Install in the brake caliper housing.
    • Counterhold by the hexagon on the brake hose and attach to the brake hose.
    • Hose must be installed free of twists.
    • Make sure that lugs are properly seated in grooves in bracket.
16. Bracket for Brake Line
    • Bolt to brake caliper housing.
    • Hook in brake line.
17. Brake Line in Brake Caliper
    • 16 Nm
18. Guide Pins Bolt
    • 30 Nm
19. Balance Spring
    • Each brake caliper has two.
    • Disengaging and engaging, refer to BALANCE SPRING, DISENGAGING AND ENGAGING .