Disassembly (ES 300)
- Remove rear disc caliper. See REAR BRAKE CALIPER .
- Remove brake pads with anti squeal shims. See Figure.
- Remove bolts and disc brake caliper mounting.
- Using a screwdriver, remove set ring and cylinder boot from disc brake caliper.
- Place a piece of cloth between piston and disc brake caliper.
- Use compressed air to remove piston from disc brake caliper.
- Using a screwdriver, remove piston seal from disc brake caliper. Do not damage inner caliper and caliper groove.
- Remove rear disc brake bleeder screw cap and screw.
- Check caliper bore and piston for rust or scoring.