- keys "10", "12" and "17"
- screwdriver
Before you start: Remove the appropriate wheel.
If there are burrs, deep scratches and other defects on the working surface of the disc that increase wear of the pads and reduce braking efficiency, replace the disc. In specialized workshops, such a disc can be turned and ground on both sides to the same depth, but after processing, the thickness of the disc must not be less than the minimum permissible.
The minimum permissible thickness of the brake disc is A=7.8 mm. If the thickness of the disc is less, it must be replaced. The axial runout of the brake disc surface must not exceed 0.15 mm. Please note that disc measurements must be taken in specialized workshops. Measuring the disc, for example, with a caliper, will not give real results.
Recommendation: Replace the discs of both brake mechanisms at the same time.
Information copied from the portal [VAZBOOK.ru]
1. Remove the rubber seal together with the hose from the bracket.
2. Use a screwdriver to bend back the tabs of the lock washers on the two caliper mounting bolts.
3. Loosen the two caliper mounting bolts while holding the guide pins by the hexagons with a wrench.
4. Remove the bolts together with the locking plates.
5. Remove the caliper from the pad guide without disconnecting the brake hose from it (see subsection 7.1.1.).
6. Hang the caliper with a rope or wire to the front suspension spring. Make sure that the brake hose is not twisted or too tight.
7. Remove the brake pads. Mark them so that they can be installed in their original locations during assembly.
8. Use a screwdriver to bend back the tab of the locking plate of the upper brake shoe guide mounting bolt.
9. Unscrew the lower bolt securing the shoe guide to the steering knuckle. Note: there is a spring washer installed underneath it.
10. Unscrew the upper mounting bolt and, having pulled it out, remove the shoe guide.
11. Wet the hub-to-disc joints and mounting bolt with WD-40. Wait a little while to let the rust dissolve and remove the dirt and rust.
12. Loosen the brake disc mounting bolt.
13. If removal is difficult, knock off the disc with a rubber or polymer hammer.
14. Remove the spacer ring.
15. Remove the brake disc.
16. Before installing the old disc, use a file to remove the ridges formed as a result of disc wear on both sides.
17. Install the brake disc in the reverse order of removal. In doing so, lock the upper guide mounting bolt by bending the tab of the locking plate.