Front Brake Pads, Removing And Installing : Installing

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if the brake pads are being replaced, then it is necessary to check the respective brake rotor for wear and damage.

-- Check the brake rotors.

Refer to CERAMIC BRAKE ROTOR, EVALUATING

Refer to CERAMIC BRAKE ROTOR, DETERMINING WEAR

Install in reverse order of removal. Note the following:

Do not loosen the bolted connections -A arrows-

Fig 1: Do Not Loosen The Bolted Connections

Courtesy of AUDI OF AMERICA, LLC

Tighten the guide pins -B arrows- to 21 Nm to 26 Nm.

WARNING:

There is a risk of malfunction.

Do not loosen the bolted connections -A arrows-
Tighten the guide pins -B arrows- to 21 Nm to 26 Nm.

NOTE:

Use the complete repair kit when installing new brake pads.

If the brake pads are being replaced, then it is necessary to check the respective ceramic brake rotor for damage and wear.

Ceramic Brake Rotor, evaluating. Refer to CERAMIC BRAKE ROTOR, EVALUATING .

Ceramic Brake Rotor, determining wear. Refer to CERAMIC BRAKE ROTOR, DETERMINING WEAR .

Always replace brake pads on both sides of the axle.

CAUTION:

Danger of contamination and paint damage from escaping brake fluid.

If the brake pads are worn out and unnecessary brake fluid is filled, the brake fluid may overflow, causing the pistons in the brake cylinders to be pressed back.
Check the brake fluid level before pressing back the pistons. If there is brake fluid up to the "MAX" mark, some brake fluid will need to be extracted.
Use the Brake Charger/Bleeder Unit VAS 5234 to extract brake fluid from brake fluid reservoir.

NOTE: Check the brake piston protective caps for damage and install the complete repair kit, if necessary. Refer to BRAKE CALIPER, SERVICING, THREE-PISTON BRAKE .

-- Use the Piston Resetting Tool T10145 to press the brake piston completely into the brake caliper.

WARNING: Do not blow out the brake caliper with compressed air.

NOTE:

Use only mineral spirits or commercially available brake cleaner to clean the brake caliper. Do not clean the ceramic brake rotor with fluid.

Check the brake piston protective caps for damage and install the complete repair kit, if necessary. Refer to BRAKE CALIPER, SERVICING, THREE-PISTON BRAKE .

-- Clean the brake caliper.

-- Clip the new brake pad springs into the brake caliper.

The brake pad springs must be completely locked into the brake caliper.

-- Clean the brake caliper on the brake pad contact surfaces -1 and 2- and thinly coat them with Lithium grease.

Fig 2: Identifying Brake Pad Contact Surfaces

Courtesy of AUDI OF AMERICA, LLC

-- Insert the brake pads -1- in succession into the brake caliper by pressing each brake pad against the brake pad springs -arrows A- and pushing them all the way onto the guide pins -arrow B-.

Fig 3: Identifying Brake Pads

Courtesy of AUDI OF AMERICA, LLC

Tighten the guide pin to 21 Nm to 26 Nm.

-- Install the brake caliper. Refer to Installing .

-- Refer to BRAKE PAD WEAR SENSOR, REMOVING AND INSTALLING .

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

WARNING:

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

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

Check brake fluid level, and fill if necessary.