- raise the front of the car and place it on stands;
- remove the wheels;
- through the viewing window in the caliper, inspect the brake pads, evaluating the thickness of their linings. If any one lining is worn more than the allowable, all four pads are subject to replacement.
For a more accurate assessment of the condition of the brake mechanism, remove the pads, clean them of dirt, and inspect the brake disc. This operation is described in detail in the section «Brake system».