why does my Volkswagen Passat B8 (2015-2022) make a grinding noise when braking

Solution

1. Preparation

• Tools Required: Jack stands, wheel chocks, lug wrench, caliper gauge, OBD-II scanner, brake cleaner.
• Lift the vehicle using a jack and secure it with jack stands.
• Remove the wheel to access the braking components.

2. Inspect and Replace Brake Pads

1. Remove the caliper bolts using a socket set.
2. Carefully slide the caliper off the rotor and support it without straining the brake line.
3. Remove the old brake pads from the caliper bracket.
4. Measure the thickness of the brake pads; if below manufacturer specifications, replace them.
5. Apply brake lubricant to the backing of the new pads and install them in the caliper bracket.

3. Inspect and Replace Brake Rotors (if necessary)

1. Check the rotor surface for any grooves or uneven wear.
2. If the rotors are damaged or below the minimum thickness, remove the caliper bracket and rotor.
3. Install new rotors by aligning them with the hub and securing them with the appropriate bolts.
4. Torque the rotor screws to the manufacturer’s specified torque value.

4. Reassemble Brake Components

1. Reposition the caliper over the new brake pads and rotor.
2. Tighten the caliper bolts to the manufacturer’s torque specifications.
3. Reinstall the wheel and lug nuts, tightening them in a star pattern.

5. Final Checks

• Lower the vehicle and pump the brake pedal to ensure proper pad seating.
• Inspect for any leaks around the brake lines and calipers.