Brake Pads, Removing And Installing, 1LT And 1LY: Installing

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If old brake pads are being replaced with new ones, then it is necessary to check the brake rotor thickness for wear. While doing so, pay attention to the wear specifications for the brake rotor.

-- Check the brake rotor for wear. For the wear specification. Refer to BRAKE PR NUMBERS .

-- Clean the brake caliper housing.

Clean brake caliper with mineral spirits exclusively.

NOTE:

Push the pistons with the resetting tool into the cylinder before installing the brake pads. 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.

WARNING:

Brake fluid is poisonous. NEVER siphon brake fluid with your mouth!

-- Press the piston back.

Use the piston resetting tool T10145.

Fig 1: Pressing Piston Back Into Caliper Housing

Courtesy of AUDI OF AMERICA, LLC

-- Insert the brake pad with retaining spring into brake caliper housing (piston).

Fig 2: Contact Points

Courtesy of AUDI OF AMERICA, LLC

NOTE:

The inner pad (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.

-- Remove any protective film from the brake pad backing plate.

-- Install outer brake pad on brake carrier.

-- Install both guide pins in the brake caliper housing and tighten.

Fig 3: Identifying Caliper Guide Pins, Removal/Installation

Courtesy of AUDI OF AMERICA, LLC

-- Insert both caps -arrow-.

Fig 4: Caliper Guide Pin Caps

Courtesy of AUDI OF AMERICA, LLC

-- Insert the retaining spring into the brake caliper housing.

NOTE:

After installing in both holes, the retaining spring must be pressed under the brake carrier. If improperly installed, the wear of the outer brake pad cannot be adjusted, thereby increasing brake pedal travel.

After installing the brake pads, depress the brake pedal several times firmly to properly seat brake pads in their normal operating position.

-- Check brake fluid level, and fill if necessary.

NOTE:

Make sure the brakes are working correctly before driving the vehicle for the first time.

WARNING:

Make sure the brakes are working correctly before driving the vehicle for the first time.