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Home >> Audi >> 2007 >> S8 >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake System >> 46 - Brakes - Mechanical components >> Front brakes 2FNR 42 AL >> Brake pads, removing and installing

Brake pads, removing and installing

Removing 

NOTE:
  • When removing, mark brake pads that will be used again. Install in the same position, otherwise braking effect will be uneven!
  • Observe the direction of rotation when installing brake disc arrow on brake disc and installed location left or right
Fig 1: Securing Brake Disc Using Wheel Bolt
GW00022627Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 2: Using Screwdriver To Pry Off Brake Pad Retaining Spring From Brake Caliper Housing
GW00022628Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • Spring is tensioned, protect with a glove or cloth.
Fig 3: Disconnecting Brake Wear Indicator Connector
GW00022629Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 4: Releasing Connector From Retainer Using Screwdriver And Simultaneously Turning Connector 90°
GW00022630Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 5: Unhooking Brake Line From Retainer
GW00022631Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 6: Removing Caps
GW00022632Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 7: Identifying Brake Caliper Housing To Brake Carrier And Fastening Guide Pins
GW00022633Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • The brake pad with wear indicator sits inside.
  • Brake carrier must be removed to replace brake pads.

Clean brake caliper with mineral spirits exclusively. 

Installing 

Fig 8: Pressing Pistons Back
GW00022634Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • Press piston back into caliper housing using resetting tool before inserting new brake pads. Before pushing back the piston, siphon some of the brake fluid out of the brake fluid reservoir. Otherwise, especially if reservoir has been topped off, fluid will overflow and cause damage.
CAUTION: Brake fluid is poisonous. NEVER siphon brake fluid with your mouth!
Fig 9: Setting Brake Pad With Retaining Spring And Wear Indicator Into Brake Caliper Housing (Piston)
GW00022635Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 10: Setting Outer Brake Pad With Retaining Springs Into Brake Caliper
GW00013055Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • Insert brake pads into brake caliper and mount them together onto brake carrier and brake disc.
Fig 11: Identifying Brake Caliper Housing To Brake Carrier And Fastening Guide Pins
GW00022633Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • After hooking into both studs, the retaining spring must be pressed under brake carrier. If improperly installed, the wear of the outer brake pad cannot be adjusted, thereby increasing brake pedal travel.
  • After installing brake pads, depress brake pedal several times firmly to properly seat brake pads in their normal operating position.