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Home >> Audi >> 2014 >> A5 Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 33 (Brake System) >> 46 - Brakes - Mechanical components >> Front brakes FN3 >> Front brakes, servicing

Front brakes, servicing

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NOTE:
  • Install repair kit complete.
  • After replacing brake pads, depress brake pedal firmly several times with vehicle stationary so that the pads are properly seated in their normal operating position.
  • To draw off brake fluid from brake fluid reservoir use a bleeder bottle which is used only for brake fluid. Brake fluid is poisonous and must on no account be siphoned out by mouth using a hose!
Fig 1: Exploded View Of Front Brakes FN3
GW00019711Courtesy of VOLKSWAGEN UNITED STATES, INC.

1 - Brake disc cover

2 - Collar bolt, 10 Nm

3 - Brake hose

4 - Bracket

5 - Hex bolt, 10 Nm-

6 - Spring clip

7 - Brake line

8 - Connector

9 - Ribbed bolt, 190 Nm

10 - Brake carrier

11 - Brake pads

NOTE:
  • The inner surface (with tension spring) is indicated by an arrow. The arrow must point in direction of brake disc rotation when moving forward. If installed incorrectly this may cause noise problems.
  • Clean guide surfaces and apply a thin coating of polycarbamide grease G 052 142 A2  before inserting pads.
  • There is an adhesive foil on the back plates of the outer brake pads. The protective foil must be pulled off before inserting.
  • Brake pad wear indicator (left front and right front)
  • Warning lamp in instrument cluster will light up when wear limit (2 to 3 mm) is reached.
  • Always replace both sides
  • Removing and installing → Brake pads, removing and installing 
  • Checking pad thickness:
  • Different versions see ETKA
NOTE:
  • Always clean the brake caliper (grease-free) before inserting new brake pads. When doing this, make sure that all adhesive foil residue on the contact surfaces for the outer brake pad is removed.

12 - Retaining spring

NOTE:
  • After inserting the retaining spring into the two holes, press it under the brake carrier. If incorrectly installed, it is not possible to adjust the wear of the outer pad, and the pedal travel will be increased as a result.

13 - Brake disc

14 - Torx bolt

15 - Wheel bolts

16 - Brake caliper housing

17 - Guide pins, 30 Nm

18 - Protective cap