Removal (HP2, Aluminum Caliper)

Raise and support vehicle. Remove wheels. Install one wheel bolt to secure brake disc.
Disconnect connector for brake pad wear indicator. See Fig 1 . Disengage connector from bracket using a screwdriver and simultaneously turn connector 90 degrees. Lift connector up and out and disengage wire.

Fig 1: Locating Brake Pad Wear Indicator (HP2, Aluminum Caliper)
Courtesy of AUDI OF AMERICA, INC.
Press upper and lower spring tensioner out of locking mechanism using pliers. Slide spring to side. See Fig 2 .

Fig 2: Removing/Installing Upper & Lower Spring Tensioner (HP2, Aluminum Caliper)
Courtesy of AUDI OF AMERICA, INC.

NOTE: 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.

Press piston back into brake caliper housing. To do this, insert floating frame using a screwdriver and press powerfully outward.
Use screwdriver to press outer brake pads off brake caliper. See Fig 3 .

Fig 3: Pressing Outer Brake Pads Away From Caliper (HP2, Aluminum Caliper)
Courtesy of AUDI OF AMERICA, INC.
Press floating frame in direction of arrow until stop. See Fig 4 . Carefully press brake pads out of piston and remove brake caliper housing.

Fig 4: Pressing Floating Frame Caliper To Remove Brake Pad (HP2, Aluminum Caliper)
Courtesy of AUDI OF AMERICA, INC.