why does my Volkswagen Passat B8 (2015-2022) shake when I brake hard

Solution

1. Preparation

• Tools Required: Jack and jack stands, lug wrench, dial indicator, torque wrench, brake cleaner.
• Ensure the vehicle is on a flat surface and securely jacked up. Always use jack stands for safety.

2. Remove Wheel

• Loosen the lug nuts slightly while the wheel is still on the ground.
• Use the jack to lift the vehicle and then support it with jack stands.
• Remove the lug nuts completely and take off the wheel.

3. Inspect and Replace Brake Rotors (if warped)

• Sub-steps:
  • Use a dial indicator to measure rotor runout. If it exceeds manufacturer specifications, replacement is necessary.
  • Remove the caliper by unscrewing the caliper bolts. Hang it using a bungee cord to avoid stress on the brake line.
  • Remove the brake pads from the caliper bracket.
  • Unscrew the rotor retaining screws (if applicable) and slide off the rotor.
  • Install the new rotor and secure it with screws.
• Torque Specification: Refer to the vehicle service manual for the specific torque value.

4. Inspect and Replace Brake Pads (if needed)

• Check the brake pads for wear. If they are worn unevenly, replace them.
• Apply brake grease to the back of the new brake pads and install them in the caliper bracket.

5. Reassemble Components

• Reinstall the caliper over the new brake pads and secure it with bolts.
• Tighten the caliper bolts to the manufacturer’s specified torque.
• Reinstall the wheel and hand-tighten the lug nuts before lowering the vehicle.

6. Final Checks

• Lower the vehicle and torque the lug nuts to the specified value in a star pattern.
• Test the brakes by applying pressure without moving to ensure proper feel.