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

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

-- Check the wear specification of the brake rotors. Refer to TECHNICAL DATA, BRAKES .

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 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 .

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 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 .

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 : VAS5234 to extract brake fluid from the brake fluid reservoir.

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

Fig 1: Pressing Piston Back

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-- Clean the brake carrier -1- on the contact surface -2- for the brake carrier and coat thinly with Grease.

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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.

-- Insert the brake pads.

Installation Position of the Brake Pads.

Fig 2: Installation Position of the Brake Pads (Depending on the Model)

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Meaning of the letters -arrows- :

H or Q -

Left and Right Outer Brake Pad

X or O -

Left Inner Brake Pad

Y or P -

Right Inner Brake Pad

Alternatively the following letters may also be present:

BS -

Left and Right Outer Brake Pad

BT -

Left Inner Brake Pad

BU -

Right Inner Brake Pad

-- Place the brake pads -1- with the springs -2- into the brake carrier opening -3-.

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After installing the brake pads, check for proper seating of all the springs -2-.

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

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

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

-- Connect the connector -arrow- for the brake pad wear indicator contact on the right brake caliper.

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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.

-- Install the corresponding front wheel.