Brake disc thickness, mm:
- nominal value - 18.0 (cars with 1600 engines), 24,0 (cars with 1800 engines);
- the minimum allowable value is 16.4 (cars with 1600 engines), 22,4 (cars with 1800 engines).
The brake disc must be replaced if its thickness has become less than the minimum allowable. If the disc thickness difference exceeds the allowable value, then it is necessary to replace the disc or grind it on a special lathe.