Measure the thickness of the brake disc. At the service station, a special clamp or micrometer is used for this, since when worn, a protrusion is formed on the outer diameter of the disc. The thickness of the brake disc can be measured with a normal caliper, placing coins or hard pads under the jaws of the measuring device on both sides. In order to get the exact size, you need to subtract the thickness of the coins or pads from the measured value.
Attention! Take measurements in different places on the disk.
Attention! Measure the thickness of the disc at the most worn place of the "arrow".
Brake disc dimensions see p. 15.1.
If wear has reached the limit, replace the brake disc.
If there are scratches or ridges larger than 0.5 mm on the surface of the disc, the disc must also be replaced.
Install the front wheels so that the marks applied earlier match. Before installing the wheels, lubricate the centering surface on the wheel hub with a thin layer of grease. Screw on the wheel mounting nuts. Lower the car and tighten the nuts crosswise to a torque of 100 Nm.