Sequence of execution
1. Prepare the car for work (see "Preparing the car for maintenance and repair").
2. Remove the front wheel (see "Wheel replacement").
3. Through the inspection hole in the movable bracket of the caliper, we determine the thickness of the brake pad linings.
4. We check the mobility of the brake cylinder pistons by spreading the pads with a slotted screwdriver.
Note: If the thickness of the friction lining of at least one pad is less than 1.5 mm, replace all four brake pads of the brake mechanisms of the right and left wheels (see "Front brake pads - replacement"). If the piston "sticks", replace the working cylinder (see, "Front brake caliper - removal, repair and installation").
5. Using a caliper, measure the thickness of the brake disc, which should not be less than 19.8 mm. If the disc is significantly worn, ridges form on its outer edges, which prevent accurate measurements. In this case, the measurement is performed with a micrometer...
...or we reduce the flange with a file.
Warning! A damaged or worn disc must be replaced together with the second front brake disc (see "Front brake discs - replacement").
6. By successively bending the brake hose along its entire length, we make sure there are no cracks.
We also visually check that there are no cuts or other mechanical damage on the hose.
Warning! Damaged hoses may burst and must be replaced (see "Brake hoses - replacement").
Recommendation. Before installing the wheel, treat the working surface of the brake disc with a special compound - brake cleaner.
7. Install the wheel on the hub and secure it with bolts, tightening them to a torque of 105 Nm.
8. We check the brake mechanism of the other front wheel in the same way.
9. After completing the check, press the brake pedal several times to bring the pads to the brake disc.