Brake Pads, Removing And Installing, Single-Piston Brake: Installing

WARNING: This page is about a different variant/trim than selected.

Install in the reverse order of removal while noting the following:

Use the complete repair kit when installing new brake pads.
Components to be used when installing new brake pads. Refer to the appropriate Electronic Parts Information.

-- If the brake pads are being replaced, check the brake rotors for wear and damage. Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES .

CAUTION:

Health risk due to toxic dust from the brake system.

Irreversible deposit of dust particles in the lungs. Breathing impairments may occur.

- Never blow out the brake system with compressed air.

Use only mineral spirits to clean the brake caliper housing.
Check the protective caps of the brake caliper pistons for damage and install the complete repair kit, if necessary. Refer to BRAKE CALIPER PISTON, REMOVING AND INSTALLING, SINGLE-PISTON BRAKE .

-- Check the bearing bushings of the guide pins for damage and check that the guide pins move easily. Install the complete repair kit, if necessary. Refer to BEARING BUSHING AND GUIDE PIN, REPLACING .

Fig 1: Suction Hose From The Brake Charger/Bleeder Unit

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

There is a risk of contamination and paint damage from leaking brake fluid.

- Check the brake fluid level before pushing the brake caliper piston back into the brake cylinders.

-- If the brake fluid is up to the "MAX" marking on used brake pads, it must be extracted.

-- Evacuate the brake fluid -2- in the brake fluid reservoir with the screen installed -1-, using the Brake Filling and Bleeding Equipment:VAS 6860 or Brake Charger/Bleeder Unit:VAS 5234 (example illustration).

-- Use the Piston Resetting Tool:T10145 to press the brake caliper piston all the way back into the brake caliper housing.

Fig 2: Pressing Piston Back Into Caliper Housing

Courtesy of AUDI OF AMERICA, LLC

-- Clean the brake carrier -1- at the contact surfaces -arrows- for the brake pads.

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-- If equipped, remove the protective film from the backing plate of the brake pad.

-- If re-using, install the marked brake pads in the same location.

-- Bring the brake pads into their installation position. Refer to Figure.

-- Bring the brake caliper housing -1- into its installation position and tighten the guide pins -arrow-.

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-- Insert the caps -2 and 3-.

Make sure the brake hose is routed correctly.
Make sure the brake hose is not pinched, bent, twisted or rubbing against the vehicle.

-- Bring the brake pad wear sensor into its installation position on the bracket and turn it in the -direction of the arrow- until the tab -2- engages in the hole -3- on the bracket.

Courtesy of AUDI OF AMERICA, LLC

-- Connect the connector -1-.

-- Insert the spring -1- into both holes -2- in the brake caliper housing.

Courtesy of AUDI OF AMERICA, LLC

The spring must be pressed under the brake carrier -arrows- after it is inserted in both holes.

TIP:

If improperly installed, the wear of the outer brake pad cannot be adjusted, thereby increasing brake pedal travel.

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

CAUTION:

Faulty brakes increase the risk of an accident.

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

-- With the vehicle stationary, firmly press the brake pedal several times so that the brake pads in the operating condition properly sit in their respective position.