Brake Pads, Removing And Installing, Steel Brakes 1LJ/1LL/1LM/1LX/1LY/1LZ/1ZA/1ZC/1ZK/1ZX: Installing

WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Install in reverse order of removal and note the following:

Always replace brake pads on the same axle at the same time.
Use the complete repair kit when installing new brake pads.
Clean the bolts and nuts before reusing.
Replace damaged bolts and nuts.
Replace the self-locking bolts and nuts after removal.

-- If the brake pads are being replaced, check the brake rotors for wear and damage.

Brake rotor wear limit. Refer to TECHNICAL DATA, BRAKES .

CAUTION:

Health risk due to toxic dust from the brake system.

Irreversible deposit of dust particles in the lungs. Breathing may become impaired.

- Never blow out the brake system with compressed air.

Use only mineral spirits to clean the brake caliper.
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, SIX-PISTON BRAKE .

Fig 1: Identifying Brake Charger/Bleeder Unit VAS5234

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.

Use the Brake Charger/Bleeder Unit :VAS5234 to extract brake fluid from the brake fluid reservoir.

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

-- Clean the brake caliper at the contact surfaces -arrows- for the brake pad retaining plates.

Courtesy of AUDI OF AMERICA, LLC

-- Clip the brake pad retaining plates -1- and the brake pad spring -2- into the brake caliper.

Courtesy of AUDI OF AMERICA, LLC

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

-- Insert the brake pads -3 and 4- one after the other into the brake caliper by pressing each brake pad against the brake pad springs and pushing them all the way onto the brake pad retaining plates.

-- Install the brake pad wear sensor. Refer to BRAKE PAD WEAR INDICATOR WIRE, REMOVING AND INSTALLING .

-- Install the brake caliper. Refer to BRAKE CALIPER, REMOVING AND INSTALLING, STEEL BRAKES 1LJ/1LL/1LM/1LX/1LY/1LZ/1ZA/1ZC/1ZK/1ZX .

-- 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.