G8 V8-6.0L (2009)
26. Inspect the brake caliper pistons (4) for cracks, scoring, and/or damage.
If cracks, scoring, and/or damage are present in the brake caliper pistons (4), replace the brake caliper pistons (4) if any of these conditions exist.
Warning: Refer to Brake Fluid Irritant Warning (See: Service Precautions/Technician Safety Information/Brake Fluid Irritant Warning).
Warning: Refer to Brake Dust Warning (See: Service Precautions/Technician Safety Information/Brake Dust Warning).
Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution (See: Service Precautions/Vehicle Damage Warnings/Brake Fluid
Effects on Paint and Electrical Components Caution).
Assembly Procedure
Note:
*
Replace all the components included in the repair kit used to service the brake caliper.
*
Lubricate the rubber parts with NEW HN-1796 brake fluid to make assembly easier.
*
If any hydraulic component is removed or disconnected, it may be necessary to bleed all or part of the brake system.
*
The torque values specified are for dry, non-lubricated fasteners.
*
Perform the service operations on a clean bench, free from all mineral oil materials.
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
1. Install the brake caliper bleeder valve (6) and tighten to 12 Nm (106 lb in).
2. Lubricate the NEW brake caliper piston seals (2) with Super DOT 4 or DOT 4 Plus brake fluid from a clean, sealed brake fluid container.
Note: When installing, make sure the brake caliper piston seals (2) are not twisted.
3. Install the brake caliper piston seals (2) into the seal grooves in the brake caliper bores (5).
4. Lubricate the brake caliper bores (5) and pistons (4) with brake fluid.
5. Install the brake caliper pistons (4) into the caliper bores (5).
6. Install the NEW brake caliper piston dust boot seals (3) over the brake caliper pistons (4).
7. Complete the following for both brake caliper piston dust boot seals (3).
