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Home >> Audi >> 2009 >> S4 Automatic >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake System >> 46 - Brakes - Mechanical components >> Front brakes FNR-G60 >> Brake pads, removing and installing

Brake pads, removing and installing

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:
  • Mark brake pads when removing them if they are to be reused. Reinstall in their original position to prevent uneven braking.
  • The brake disc is secured with a Torx bolt.
Fig 2: Using Screwdriver To Pry Off Brake Pad Retaining Spring From Brake Caliper Housing
GW00019713Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 3: Turning Connector 90° While Using Screwdriver To Release Connector From Bracket
GW00019714Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 4: Detaching Brake Line From Retainer
GW00019715Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 5: Removing Protective Caps
GW00019716Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 6: Securing Brake Caliper Housing To Brake Carrier With Both Guide Pins
GW00019717Courtesy of VOLKSWAGEN UNITED STATES, INC.

Use methylated spirits to clean the brake caliper housing. 

Installing 

Fig 7: Pressing Piston Back Into Caliper Housing
GW00019718Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • Press piston back into the cylinder with resetting tool, before inserting new brake pads. Draw off brake fluid from the reservoir with a bleeder bottle before pressing piston back. Otherwise brake fluid which was used to top off brake fluid reservoir, may run out and cause damage.
CAUTION: Brake fluid is poisonous and must never be extracted by mouth using a hose!
Fig 8: Inserting Inner Brake Pad With Retaining Spring In Brake Caliper
GW00013054Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 9: Setting Outer Brake Pad With Retaining Springs Into Brake Caliper
GW00013055Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • Insert brake pads into brake caliper and install assembly on brake carrier/brake disc.
Fig 10: Securing Brake Caliper Housing To Brake Carrier With Both Guide Pins
GW00019717Courtesy of VOLKSWAGEN UNITED STATES, INC.
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.
  • 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.