1. Place the car on a level surface, apply the handbrake and select first or reverse (manual transmission) or 'P' position (automatic transmission). Block the front wheels. Loosen the wheel nuts, jack up the rear of the vehicle and support it on axle stands. Remove the wheel and release the handbrake completely.
2. Rotate the disc slowly until you can view the entire surface on both sides. Light scuffing around the brake pads is acceptable, but if there is deep scuffing, the disc must be replaced. The only alternative to this is to regrind the surface of the disc, but its thickness should not be less than the specified minimum thickness.
3. If it is suspected that the disc is distorted, this can be checked by using a gauge installed at any convenient point and slowly rotating the disc, or using feeler gauges, measure the gap at several points around the disc. Take measurements in the center of the pad coverage area. If the resulting dimensions are close to or larger than the specified maximum, the drive must be replaced. But first you need to check the condition and adjustment of the hub bearings - see Chapters 12 and 13 from Section 10.
4. Check the disc for cracks, especially around the holes, and for any other signs of wear or damage. Replace the drive if necessary.
5.If one of the brake discs is worn or damaged, both discs must be replaced at once to ensure smooth braking.
6. Since the rear brake discs are integral with the rear hubs, to remove them it is necessary to remove the hub bearings. When installing, the bearings must be assembled and adjusted. See Chapters 12 and 13 from Section 10.
7. When installing a new brake disc, use a suitable solvent to remove the preservative.