Checking the degree of wear of brake pads and discs (Opel Astra J)

You will need: a wheel wrench, calipers or a ruler.

Note: If the vehicle pulls to one side or makes strange noise when braking, check the condition of the brake pads.

1. Place the vehicle on a lift or jack (supports).

2. Remove the front wheel.



3. Check the condition of the brake pads through the hole in the brake caliper housing. If the thickness of the friction linings is less than the maximum permissible value (Table 9.1), replace the brake pads (see Replacing the brake pads of the front wheel brake mechanism).



4. Measure the thickness of the brake disc at eight points evenly spaced around the circumference (at 45°) and approximately 15 mm from the outer edge of the disc. If its thickness is less than the maximum permissible (see table 9.1), replace the brake disc (see Replacing the brake disc of the front wheel brake mechanism).





5. Similarly, check the degree of wear of the brake pads…



6. …and the brake disc of the rear wheel brake mechanism.