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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, FN3

Front Brakes, FN3

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NOTE:

Install complete repair set.

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!

Fig 1: Identifying Front Brake Components (FN-3)
GWWA46-10111Courtesy of AUDI OF AMERICA, LLC
  1. Brake Shield
  2. Bolt
    • 18 Nm
  3. Tension Spring
    • Must sit in the brake piston.
  4. Harness Connector
    • Remove from the bracket when replacing the brake pad.
  5. Bolt
    • 196 Nm
  6. Brake Carrier
    • Bolt to wheel bearing housing.
  7. Brake Pads
    • Wear limit, refer to BRAKES .
      NOTE:

      The inner surface (with tension spring) is indicated by an arrow. The arrow must point in the rotation direction of the brake rotor when driving forward. If improperly installed, noises could result.

    • Before installing the brake pads, clean the pad guide surface and coat it with a film of Polycarbamide grease G 052 142 A2.
      NOTE:

      Remove any adhesive film on the back of the brake pad before installing.

    • Left front brake pad wear indicator.
    • With adequate wear, the warning light in the instrument cluster lights up.
    • Must always be replaced together on both sides of axle.
    • Removing and installing, refer to FRONT BRAKE PADS, FN-3 .
    • 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 so, pay particular attention to removing any remaining adhesive foil on outer brake pad contact surfaces.

  8. Spring
    • Before installing the brake pads, clean the pad guide surface and coat it with a film of Polycarbamide grease G 052 142 A2.
    • Insert in both holes of brake caliper housing.
      NOTE:

      Retaining 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.

  9. Brake Rotor
    • Wear limit, refer to BRAKES .
    • Must always be replaced together on both sides of axle.
    • Remove brake caliper before removing.
    • Removing and Installing, refer to FRONT BRAKE DISC, FN-3 .
  10. Bolt
    • 5 Nm
  11. Brake Caliper Housing
    • To replace brake pads, unfasten from brake carrier.
    • Brake caliper, servicing, refer to BRAKE CALIPER, FN3 .
  12. Guide Pins
    • 30 Nm
  13. Cap
    • Remove the guide pins to remove.
    • Insert the guide pins after installation.
  14. Brake Hose
    • Do not remove the brake hose when changing the brake pads.
    • Install in the brake caliper housing.
    • 20 Nm
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