Checking the Front Brake Disc
WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.
Check the brake disc surface. Check the lateral runout of the brake disc if the disc is uneven. See Measuring Brake Disc Lateral Runout (Front/Rear) . The brake disc must be replaced if it is very worn or grooved. See Front Brake Disc Replacement .
NOTE:
Minimum disc thickness = 21.5 mm. If installing new brake pads, the minimum disc thickness must be at least 22.1 mm.