Brake Pads, Removing And Installing, Q8: Installing

WARNING: This page is about a different car, the 2023 Audi SQ8, 2023 Audi RS Q8, and 2023 Audi Q8. However, it is still accessible from the selected car via links, so may be relevant.

Installation in reverse order of removal and note the following:

TIP:

Always replace self-locking bolts.
Replace damaged bolts.
Clean bolts before reusing.

When changing the brake pad, check the brake rotor for wear and damage.

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

Always replace brake pads on both sides of the axle.
Replacing the brake pad wear indicator wire.
Use the complete repair kit when installing new brake pads.

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.
Check the protective caps of the brake caliper pistons for damage and install the complete repair kit, if necessary. Refer to BRAKE PISTON, REMOVING AND INSTALLING .

Fig 1: Identifying Brake Charger/Bleeder Unit VAS5234

Courtesy of AUDI

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. Coat the contact surfaces thin with Grease.

Courtesy of AUDI

-- Clip the brake pad retaining plates -1- into the brake caliper.

Courtesy of AUDI

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

TIP:

Grease the guides with Grease.
Do "not" coat the rubber components, seals and adhesive surfaces for the brake pad backing plate with grease or paste.

-- 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.

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

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

-- Install the brake caliper. Refer to BRAKE CALIPER, REMOVING AND INSTALLING .

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.

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