Brake Pads, Removing And Installing, 1LA, 1LB, 1LJ And 1LD 1ZT + S4 /S5: Installing

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If old brake pads are being replaced with new ones, then it is necessary to check the brake rotor thickness for wear. While doing so, pay attention to the wear specifications for the brake rotor.

-- Check the brake rotor for wear. For the wear specification. Refer to BRAKE PR NUMBERS .

-- Clean the brake caliper.

Clean brake caliper with mineral spirits exclusively.

NOTE:

Push the pistons with the resetting tool into the cylinder before installing the brake pads. Before pressing the piston back, draw off brake fluid from the reservoir with a bleeder bottle. Otherwise fluid will overflow and cause damage if the reservoir was topped off during repair work.

WARNING:

Brake fluid is poisonous. NEVER siphon brake fluid with your mouth!

-- Press the piston back.

Use the piston resetting tool T10145.

Fig 1: Pressing Piston Back Into Caliper Housing

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Before inserting the brake pads, clean the retaining pin for the brake pads -arrows- and apply a thin layer of grease . When doing this, do not allow any grease to get on the rubber components. Clean the rubber components of grease.

Fig 2: Identifying Retaining Pins

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-- Remove any protective film from the brake pad backing plate.

-- Insert the inner brake pad with the retaining springs in the brake caliper. The retaining spring -arrow- must sit in the brake piston.

Fig 3: Identifying Insertion Of Inner Brake Pad With Retaining Spring In Brake Caliper

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-- Insert the outer brake pad -2- into the brake caliper.

Fig 4: Identifying Outer Brake Pad, Retaining Springs And Brake Caliper

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The brake pad has a mount -10- on the backing plate that must sit firmly in the brake caliper hole.

Fig 5: Overview Of Front Brakes Components (1LA, 1LB, 1LJ And 1LD 1ZT +S4 /S5)

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WARNING:

Both brake pads must sit under the retaining pins in the brake caliper. The brake caliper has two retaining pins at both left and right that must not be loosened.

-- Carefully slide the brake caliper with brake pads over the brake rotor.

-- Tighten the brake caliper on the brake carrier with both guide pins -4-.

Fig 6: Overview Of Front Brakes Components (1LA, 1LB, 1LJ And 1LD 1ZT +S4 /S5)

Courtesy of AUDI OF AMERICA, LLC

-- Press the retaining spring in the center and insert the center tab of the retaining spring in the hole -arrow- on the brake caliper.

Fig 7: Overview Of Front Brakes Components (1LA, 1LB, 1LJ And 1LD 1ZT +S4 /S5)

Courtesy of AUDI OF AMERICA, LLC

The retaining spring -8- tab must sit correctly in the hole in the brake caliper or it can spring out and the brake pad will not be held in place.

NOTE:

The spring is tensioned, keep hands protected.

When removing the spring, make sure it does not scratch the brake caliper or damage the paint.

-- Insert the left front brake pad wear indicator connector in the bracket.

-- Insert the electric wire in the bracket -2- and lock it to the right -B-.

Fig 8: Free Up Electrical Connector

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-- Insert the brake hose in the bracket -4-.

-- Connect the left front brake pad wear indicator connector.

-- Install the wheels. Refer to WHEEL BOLT TIGHTENING SPECIFICATIONS .

NOTE:

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

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