what could cause my Volkswagen Passat B8 (2015-2022) brakes to pulsate?

Solution

1. Preparation

• Tools Required: Jack and jack stands, lug wrench, torque wrench, dial indicator, brake cleaner, and safety goggles.
• Ensure the vehicle is parked on a level surface and the parking brake is engaged.

2. Lift the Vehicle

• Loosen the lug nuts on the front wheels slightly.
• Use a jack to lift the front of the vehicle, then secure it with jack stands.
• Remove the front wheels.

3. Inspect Brake Components

• Brake Rotors:

  • Remove caliper bolts using a socket set.
  • Lift the caliper off the rotor and secure it with a bungee cord.
  • Measure rotor thickness and runout using a dial indicator. Replace if warped or below minimum thickness specifications.

• Brake Pads:

  • Check the thickness of the brake pads. Replace if worn beyond specifications.

• Calipers:

  • Inspect calipers for any signs of binding or sticking. Clean and lubricate sliding pins if necessary.

4. Replace Components (if needed)

• If rotors are warped or pads are worn, replace with OEM or high-quality aftermarket parts.
• Ensure all new components are installed correctly and securely.

5. Reassemble and Lower the Vehicle

• Reattach the caliper over the rotor and torque the caliper bolts to the manufacturer's specifications.
• Reinstall the wheels and torque the lug nuts in a star pattern to the specified torque.
• Lower the vehicle from the jack stands.