To allow the pistons in the brake calipers to extend further out of the brake cylinder as the brake pads wear out, they must be recessed before installing new, thicker brake pads. Make sure that excess brake fluid does not leak out of the reservoir. If necessary, remove excess brake fluid in advance.
1. Raise the car from behind and secure it.
2. Remove the wheels.
3. Release the parking brake.
4. Using a thin screwdriver, carefully pull the safety clip upwards from the wedge on the inside of the brake.
(Material taken from an online portal: RenaultBook)
5. Use a screwdriver to remove the brake caliper wedge. At the same time, lightly press the wheel brake caliper inward toward the spring.
6. Remove the outer and inner pads from their sockets.
7. If necessary, remove both clamps. Remember or write down the sequence of operations.
8. Screw the pistons fully into the wheel brake caliper by turning them clockwise. To do this, insert a square into the grooves of the brake cylinder piston.
9. If it is not possible to screw it in, the brake cylinder must be replaced.
10. Wipe the brake pad seats with a cloth and alcohol (do not use gasoline under any circumstances) from dirt.
11. Scrape off any burnt residue with a screwdriver. Be careful not to damage the piston sealing cuff.
12. Before installing the brake pads, position the pistons so that the groove on the piston points to the bleed nipple.
13. Further installation is carried out as described for the front Bendix brakes.
14. Press the brake pedal several times to press the brake pads against the brake disc surface. At the same time, the parking brake clearance is adjusted.
15. Adjust the parking brake.
Replacing the rear sealing cuffs of the brake system
The sequence of operations when replacing the piston sealing cuffs of the brake cylinder on the rear wheels is similar to the sequence of operations for the front brakes. In this case, it is necessary to unscrew the piston from the cylinder in the brake caliper, rotating it counterclockwise. After this, the sealing cuff must be removed from the brake cylinder body. If there are marks from severe wear, be sure to replace both brake cylinders. The adjusting device of the parking brake drive functions without wear, since it works in brake fluid.
Before installing an old or new caliper, it is necessary to pour some brake fluid into the brake cylinder through the bleed screw. This will facilitate the process of bleeding the brakes.