Brake Pads, Removing And Installing: Installing

WARNING: This page is about a different car, the 2022 Audi Q7, 2021 Audi Q7, and 2020 Audi Q7. 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:

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

-- When the brake pads are replaced, check the brake rotors for wear and damage:

Brake rotor wear limit. Refer to TECHNICAL DATA .

NOTE:

Always replace brake pads on the same axle at the same time.

When installing new brake pads use the repair kit and new brake pad wear indicator wire.

WARNING:

Health Risk.

Do not blow out brake system with compressed air.

NOTE:

Use only mineral spirits to clean the brake caliper.

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

-- Use the : T10145 to completely press back the brake caliper piston.

To prevent the brake fluid from overflowing out of the brake fluid reservoir, extract some of the brake fluid.

Fig 1: Identifying Brake Charger/Bleeder Unit VAS5234

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CAUTION:

Danger of contamination and paint damage from escaping brake fluid.

If the brake pads are worn out and unnecessary brake fluid was filled, the brake fluid may overflow, when the brake caliper pistons in the brake cylinders are pressed back.
Check the brake fluid level before pressing back the brake caliper pistons. If there is brake fluid up to the "MAX" mark, some brake fluid will need to be extracted.
Use the : VAS5234 to extract brake fluid from brake fluid reservoir.

-- Clean the brake carrier -1- on the brake pad spring contact surfaces -arrow- and thinly coat them with lithium grease.

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

-- Insert brake pads in brake carrier.

-- Push the brake caliper over the installed brake pads.

Fig 2: Identifying Guide Pins

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NOTE:

Make sure that the wire and brake hose are routed correctly.

Make sure the brake hose is not blocked, bent, twisted or rubbing against the vehicle.

NOTE:

Always replace self-locking bolts.

If unsure of bolt type then always replace.

-- Coat the guide pins with lithium grease.

-- Tighten the new brake caliper bolts -arrows- by counterholding the guide pins at the nuts -1 and 2-.

Fig 3: Identifying Guide Pins

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NOTE:

Check the brake pad wear indicator contact for damage and if required replace.

Make sure that the brake pad wear indicator contact fits correctly in the brake pad.

If the clips go missing, the brake pad wear indicator wire must be replaced. Refer to the Parts Information

-- Insert the contact -4- for the brake pad wear indicator with the clip -3- until it engages in the inner brake pad.

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-- Secure the brake pad wear indicator wire with the dust cap -2- and the clips -1 and 5-. (shown on the ceramic brakes)

-- 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.

-- Drive the parking brake motor out. Refer to Vehicle Diagnostic Tester by following the instructions in the display.

WARNING:

Risk of accident!

With the vehicle stationary, firmly press the brake pedal several times so that the brake pads in the operating condition properly set in their respective position.
Make sure the brakes are working correctly before driving the vehicle for the first time.