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

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is on a level surface and secure with wheel chocks.
• Lift the vehicle using a jack and secure it with jack stands.

2. Inspect and Replace Brake Rotors

• Sub-steps:
  1. Remove the wheel to access the brake assembly.
  2. Unbolt and remove the brake caliper; support it with a hanger to avoid stress on the brake line.
  3. Remove the brake pads from the caliper bracket.
  4. Check the rotor for warping using a runout gauge; replace if warped beyond specification (typically 0.002 inches).
  5. If replacement is needed, unbolt the rotor from the hub and install the new rotor. Torque bolts to manufacturer specifications (usually around 80-100 ft-lbs).

3. Inspect and Replace Brake Pads

• Sub-steps:
  1. Check the thickness of the brake pads; replace if below 3 mm.
  2. Apply brake grease to the backing of new pads to prevent noise.
  3. Install new brake pads into the caliper bracket.

4. Check Suspension Components

• Sub-steps:
  1. Visually inspect control arms and bushings for cracks or excessive wear.
  2. Replace any worn components with OEM parts.

5. Reassemble and Test

• Sub-steps:
  1. Reinstall the brake caliper and torque to specifications (typically 20-25 ft-lbs).
  2. Reinstall the wheel and torque lug nuts to specifications (usually 90-100 ft-lbs).
  3. Lower the vehicle and perform a test drive to ensure proper braking function.