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Home >> Audi >> 2009 >> S4 Automatic >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake System >> 46 - Brakes - Mechanical components >> Front brakes, Brembo 18 >> Brake pads, removing and installing

Brake pads, removing and installing

Special tools, testers and auxiliary items required 

Fig 1: Identifying Torque Wrench V.A.G. 1331
GW00000113Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 2: Piston Resetting Tool T10145
GW00006810Courtesy of VOLKSWAGEN UNITED STATES, INC.

Removing 

NOTE:
  • If reusing brake pads, mark location. Install in same position when installing otherwise uneven braking will occur!
Fig 3: Securing Brake Disc With A Wheel Bolt
GW00019720Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 4: Disconnecting Connector For Brake Pad Wear Indicator & Lifting Fixing Latch Somewhat On Lower Part Of Connector
GW00019721Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 5: Driving Out Brake Pad Retaining Pins
GW00019722Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 6: Removing/Installing Retaining Springs
GW00019723Courtesy of VOLKSWAGEN UNITED STATES, INC.

Before pressing piston back, draw off brake fluid from reservoir using a bleeder bottle. Otherwise fluid will overflow and cause damage if the reservoir was topped off during repair work.

Installing 

Before inserting new brake pads, press 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.

Fig 7: Removing/Installing Retaining Springs
GW00019723Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 8: Inserting Brake Wear Indicator Connector And Wire Into Bracket On Brake Caliper
GW00019724Courtesy of VOLKSWAGEN UNITED STATES, INC.

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

NOTE:
  • After replacing brake pads, depress brake pedal firmly several times with vehicle stationary so that the brake pads are properly seated in their normal operating position.
  • After changing brake pads check brake fluid level.