why is my Volkswagen Passat B8 (2015-2022) making a knocking noise

Solution

1. Preparation

• Tools Required: Socket set, jack and jack stands, torque wrench, OBD-II scanner, flashlight.
• Ensure the vehicle is parked on a level surface.
• Disconnect the battery to prevent any electrical issues.

2. Inspect and Replace Worn Suspension Components

• Sub-steps:
  1. Lift the vehicle using a jack and secure it with jack stands.
  2. Remove the front wheels to access suspension components.
  3. Inspect the control arms, bushings, and struts for signs of wear or damage.
  4. Replace any worn components with OEM parts, ensuring proper alignment of bushings.
  5. Reinstall the wheels and lower the vehicle.

3. Check and Replace Engine and Transmission Mounts

• Sub-steps:
  1. Support the engine with a jack and a block of wood.
  2. Remove any covers obstructing access to the engine and transmission mounts.
  3. Inspect mounts for cracks or excessive wear.
  4. Replace damaged mounts with new OEM mounts, ensuring all bolts are torqued to specifications (typically 25-35 Nm).
  5. Reinstall any covers and lower the engine.

4. Inspect Drivetrain Components

• Sub-steps:
  1. Lift the front of the vehicle and secure it with jack stands.
  2. Remove the underbody cover if applicable to access the CV joints and driveshafts.
  3. Inspect CV joints for any tears or signs of wear.
  4. Replace any damaged CV joints or driveshafts as necessary, ensuring proper torque on all bolts (typically 50-60 Nm).
  5. Reinstall the underbody cover and lower the vehicle.