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Home >> Audi >> 2014 >> A5 Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 592 (Brake System - Mechanical Components (Sedan) (As Of 09.2011)) >> 46 Mechanical Components >> Description And Operation >> Front Brakes, FBC-57

Front Brakes, FBC-57

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NOTE:

Install the entire repair kit.

After replacing brake pads, depress brake pedal several times firmly to properly seat brake pads in their normal operating position.

When siphoning brake fluid, always use a bleeder bottle that is used exclusively for brake fluid. Brake fluid is poisonous. NEVER siphon brake fluid with your mouth!

Check brake caliper for ease of movement by moving it sideways.

Fig 1: Identifying Front Brake Components (FBC-57)
GWWA46-10109Courtesy of AUDI OF AMERICA, LLC
  1. Brake Pads
    • Wear limit, refer to BRAKES .
    • Illustration of left front with brake wear cable.
      NOTE:

      The inner surface (with tension spring) in the left brake caliper is equipped with a cable for wear indicator.

    • Must always be replaced together on both sides of axle.
    • Before installing the brake pads, clean the pad guide surface and coat it with a film of Polycarbamide grease G 052 142 A2.
    • Removing and Installing, refer to FRONT BRAKE PADS, FBC-57 .
    • Checking brake pad thickness, refer to BRAKE PADS, CHECKING THICKNESS .
    • Different versions .
      NOTE:

      Before installing new brake pads, thoroughly clean the brake calipers of contaminants (grease-free). When doing this, pay particular attention to the cleanliness of the brake pad contact surfaces.

  2. Brake Carrier
    • Bolt to wheel bearing housing.
    • The retaining pins for the brake pads on the brake carrier must not be loosened under any circumstances.
  3. Bolt
    • Brake carrier to wheel bearing housing.
    • Use new bolts .
    • 196 Nm
  4. Bolt
    • Tighten the brake caliper to the brake carrier.
    • 30 Nm
  5. Brake Line Connection To The Brake Caliper
    • 20 Nm
  6. Bolt
    • The 4 bolts must not be loosened under any circumstances.
  7. Brake Caliper Housing
    • When doing work, do not allow to hang from brake hose, rather suspend it from the body using bundling wire.
    • The brake caliper must not be disassembled.
    • Except for "Brake Pads, Removing and Installing", refer to FRONT BRAKE PADS, FBC-57 , "Front Brake Caliper, Servicing" and replacing the guide pins, no further repairs should made to the brake caliper.
    • Hose must be installed free of twists
  8. Spring Clamp
    • Remove the brake pads before removal.
    • Insert after installing the brake pads.
  9. Brake Pad Retaining Pins
    • Do not remove.
      WARNING:

      The 4 retaining pins for the brake pads on the brake carrier must not be loosened under any circumstances.

  10. Securing The Brake Pad In The Brake Caliper
  11. Brake Rotor
    • Wear limit, refer to BRAKES .
    • Must always be replaced together on both sides of axle.
    • Removing and installing, refer to FRONT BRAKE DISC, FBC-57 .
    • Coat contact surfaces between brake disc and wheel hub with Polycarbamide grease G 052 142 A2.
  12. Brake Pad Bolt
    • 5 Nm
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