Examination
1. Mark the position of the wheels relative to the hub with paint. This will allow you to install the balanced wheel in its original position. Loosen the wheel mounting bolts with the car on the ground. Raise the front of the car, place it on stands and remove the wheels.
The thickness of the brake disc should be measured at its thinnest point.
2. Measure the thickness of the disc. Service stations use a special gauge or micrometer for this, since a ridge forms during disc wear. The thickness of the disc can be measured using a regular caliper. To do this, place a lining of a certain thickness on each side of the disc (for example, two coins). Then the thickness of two coins must be subtracted from the value obtained as a result of the measurement. Note: the measurement must be made at several points.
3. Brake disc dimensions are given in the Specifications.
4. If the obtained thickness is less than the minimum specified value, the brake disc must be replaced, refer to the relevant section.
5. If the brake discs have been machined to their minimum thickness, you can reinstall the brake pad set.
6. If there are cracks or scuffs, the brake discs must be replaced.
7. Reinstall the wheels so that the markings applied during removal match. Pre-lubricate the centering belt of the wheel disk on the hub with a thin layer of bearing grease. Do not lubricate the wheel mounting bolts. Replace rusty bolts. Tighten the bolts. Lower the car onto the wheels and tighten the bolts crosswise to a torque of 100 N·m.