Rear

1. Press off dust cap from housing with screwdriver.
2. Hold piston with resetting special tool 000589524300, or equivalent. Then carefully press out opposing piston with compressed air. Remove piston with turning tongs if necessary.
3. If piston is seized due to rust, replace complete cylinder housing.
4. Remove deposits on piston with soft brass wire brush or rough cloth only. If there is noticeable damage to chrome plating, replace piston.
5. Remove piston seal from groove in cylinder bore.
6. Check cylinder bores in fixed caliper for signs of wear. If bore is scored or rusty, replace complete floating caliper.
7. Lightly coat new piston seal with ATE brake cylinder paste and insert into groove in cylinder bore.
8. Insert piston into bore in fixed caliper so that elevated section (marked black) on piston points upward when caliper is installed.
9. Replace dust cap by installing on piston and positioning at collar of fixed caliper, then press onto collar with pliers and appropriate discs.