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Vauxhall Astra J Workshop Service and Repair Manuals

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Rear Brake Caliper Vibration Dampener Replacement > < Front Brake Rotor Replacement

Rear Brake Rotor Replacement for Astra J

Rear Brake Rotor Replacement

Special Tools

•  CH-41013   Rotor Resurfacing Kit
•  CH-42450-A   Wheel Hub Resurfacing Kit

For equivalent regional tools, refer to Special Tools .

Removal Procedure

Warning:  Refer to Brake Dust Warning .

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Caution: Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause damage to the brake hose and in turn may cause a brake fluid leak.

1. Remove the brake caliper and the caliper mounting bracket as an assembly from the steering knuckle. Refer to Rear Brake Caliper Bracket Replacement .
2. Matchmark the position of the brake rotor to the wheel studs.
3. Remove the rear brake rotor bolt (2).
4. Remove rear brake rotor (1) from the wheel hub.

Installation Procedure

1. Using the CH-42450-A   kit , thoroughly clean any rust or corrosion from the mating surface of the hub/axle flange.
2. Using the CH-41013   kit , thoroughly clean any rust or corrosion from the mating surface and mounting surface of the brake rotor.
3. Inspect the mating surfaces of the hub/axle flange and the rotor to ensure that there are no foreign particles or debris remaining.

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4. Install the brake rotor (1) to the hub/axle flange. Use the matchmark made prior to removal for proper orientation to the flange.

Caution: Refer to Fastener Caution .
5. Install rear brake rotor bolt (2) and tighten to 9 N·m (80 lb in) .
6. Install the brake caliper and the caliper mounting bracket assembly to the steering knuckle. Refer to Rear Brake Caliper Bracket Replacement .
7. If the brake rotor was removed and installed as part of a brake system repair, measure the assembled LRO of the brake rotor to ensure optimum performance of the disc brakes. Refer to Brake Rotor Assembled Lateral Runout Measurement .
8. If the brake rotor assembled LRO measurement exceeds the specification, bring the LRO to within specifications. Refer to Brake Rotor Assembled Lateral Runout Correction .

Rear Brake Caliper Vibration Dampener Replacement > < Front Brake Rotor Replacement