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

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

-- Check the brake rotor for wear. Refer to PR NUMBER ALLOCATION - BRAKES for the wear specification.

-- Clean the brake caliper.

Only use mineral spirits to clean the brake caliper housing.

NOTE:

Before inserting new brake pads, press the piston back into the cylinder using the piston resetting tool. Before pushing back the piston, extract some of the brake fluid out of the brake fluid reservoir using a bleeder bottle. Otherwise fluid will overflow and cause damage if the reservoir was topped off during repair work.

WARNING:

Brake fluid is poisonous, and must never be siphoned by mouth under any circumstances.

-- Press The Piston Back.

Use the Piston Resetting Tool:T10145.

Fig 1: Pressing Piston Back Into Caliper Housing

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NOTE:

Before installing the brake pads, clean the brake pad bolt -arrows- and apply a thin coat of grease. Refer to Parts Information.. 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: Identifying Brake System Components

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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: Identifying Brake System Components

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-- 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: Identifying Brake System Components

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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 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, CHANGING AND MOUNTING .

NOTE:

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

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