my Volkswagen Golf makes a grinding noise when I brake what could be wrong

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Park the vehicle on a level surface and engage the parking brake.
• Place wheel chocks behind the rear wheels.

2. Remove Wheel

• Use a lug wrench to loosen the lug nuts slightly while the vehicle is on the ground.
• Raise the vehicle using a jack and secure it with jack stands.
• Completely remove the lug nuts and take off the wheel to access the brake components.

3. Inspect and Replace Brake Pads

• Remove the caliper bolts using a socket set.
• Carefully lift the caliper off the brake rotor and support it with a bungee cord or rope to avoid stressing the brake line.
• Inspect the brake pads for wear; replace if they are less than 1/8 inch thick.
  • Tools Required: Socket set, bungee cord
• If replacing, remove the old pads and install new pads ensuring they are seated properly.

4. Inspect and Replace Brake Rotors (If Necessary)

• Check the rotor for scoring or warping using a straightedge.
• If damaged, remove the rotor by unscrewing it from the hub.
• Clean the hub surface and install the new rotor, ensuring it is properly aligned.
  • Tools Required: Torque wrench to secure rotor bolts

5. Reassemble Brake Components

• Reinstall the caliper over the new brake pads.
• Tighten the caliper bolts to the manufacturer's specifications using a torque wrench.
• Reattach the wheel and hand-tighten the lug nuts before lowering the vehicle.

6. Final Checks

• Lower the vehicle to the ground and tighten the lug nuts completely in a star pattern.
• Pump the brake pedal to seat the new pads before driving.