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After removing wheels, use brake cleaner to remove dust and grime. Do not use compressed air. Do not breathe brake dust. Always leave one side assembled for reference.
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Loosen the brake reservoir cover to allow escape of air. Note brake fluid level.
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Do not strip out any mounting screws if rotor removal is required. A light tap with a hammer on the screwdriver may be enough to loosen. If not, use an impact screwdriver.
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On some brake systems, removal of the caliper bolts may be required to change pads. Always consult service manual for proper procedure. Always torque fasteners to specification.
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Remove caliper if required. Never allow caliper to hang from brake hose. Remove old pads and note position of clips, shims, and tabs.
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In this case, the locating tab on in-board rear pad must ride in groove of caliper piston for proper operation. Note that rear in-board pad has no shim installed for this reason.
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To install new pads, the caliper piston must be compressed back into the caliper for clearance. Screw type pistons require a special tool.
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Clean caliper piston before compressing back into caliper to help prevent contamination.
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Another type of caliper piston tool is used to compress the front pistons. Note use of wire to prevent caliper from hanging.
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Keep an eye on brake fluid level while compressing pistons. Brake fluid will destroy painted finishes. Siphon off excess to prevent overflow and paint damage.
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Anti-vibration material can help prevent squeal, and also holds the shims in place during assembly. Apply a thin layer. Allow both sides to tack up. Mount shims to pads.
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Apply a small amount of specified high-temperature grease to caliper slider pins if required.
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The rear rotor was worn beyond limits and replaced. Never install new pads onto a rotor worn beyond specified operating thickness.
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Install pads into caliper making sure all shims, anti-rattle clips, and tabs are in the right place. Use brake cleaner to remove any contaminants from pad surfaces before mounting caliper on disc.
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Mount caliper on disc. Clean one last time with brake cleaner. Torque the mounting bolts to specifications. Follow service manual recommendations for ABS systems. Depress brake pedal to reseat caliper piston. Check disc for rotation.
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The front pads were not only worn beyond limits, but also glazed. Glazing is great for donuts but no good for brake pads. Glazed brake pads suffer a loss in efficiency as they lose their bite.
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