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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 33 (Brake System) >> 46 - Brakes - Mechanical components >> Front brakes FN3 >> Brake pads, removing and installing

Brake pads, removing and installing

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Fig 1: Identifying Special Tools - Brake Pads, Removing And Installing
GW00019707Courtesy of VOLKSWAGEN UNITED STATES, INC.

Special tools, testers and auxiliary items required 

Removing 

NOTE:
  • If reusing brake pads, mark location. Install in same position when installing otherwise uneven braking will occur!
  • The brake disc is secured with a Torx bolt.
Fig 2: Caliper Guide Pin Caps
GW00006815Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 3: Brake Wear Pad Indicator Connector
GW00006788Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 4: Removing Brake Pad Retaining Spring From Brake Caliper Housing
GW00006816Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 5: Removing/Installing Caliper Guide Pins
GW00006817Courtesy of VOLKSWAGEN UNITED STATES, INC.

Installing 

Fig 6: Pressing Piston Back Into Caliper Housing
GW00019710Courtesy of VOLKSWAGEN UNITED STATES, INC.

Use methylated spirits to clean brake caliper housing. 

NOTE:
  • Before inserting new brake pads, press the piston back into the cylinder using the piston resetting tool. Before pressing the piston back, draw off brake fluid from the reservoir with a bleeder bottle. Otherwise fluid will overflow and cause damage if the reservoir was topped off during repair work.
CAUTION: Brake fluid is poisonous and must never be extracted by mouth using a hose!
Fig 7: Inserting Brake Pad With Retaining Spring Into Brake Caliper Housing (Piston)
GW00006819Courtesy of VOLKSWAGEN UNITED STATES, INC.
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.
Fig 8: Inserting Brake Pad With Retaining Spring Into Brake Caliper Housing (Piston)
GW00006819Courtesy of VOLKSWAGEN UNITED STATES, INC.

Mount wheels → 44 - WHEELS, TIRES, VEHICLE ALIGNMENT .

NOTE:
  • The retaining spring must be pressed under the brake carrier after inserting into both holes. If incorrectly installed, the wear of the outer pad cannot be adjusted, and the pedal travel will be increased as a result.
  • After installing the brake pads, depress pedal firmly several times with the vehicle stationary, so that the brake pads are properly seated in their normal operating position.