my BMW 3 Series E90/E91 (2005-2012) makes a clunking sound when turning, what's wrong?

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Ensure the vehicle is parked on a flat surface and the parking brake is engaged.
• Disconnect the battery before starting work, especially if working on electrical components.

2. Inspect and Replace Steering Components

• Sub-steps:
  1. Remove the front wheel using a socket set.
  2. Inspect the tie rods for any signs of wear; replace if necessary.
     • Tools required: Socket set, torque wrench.
     • Safety warning: Ensure the vehicle is securely lifted and supported with jack stands.
  3. Check the ball joints; replace if they exhibit excessive play.
     • Tools required: Ball joint separator, socket set.
  4. Tighten or replace any loose fasteners on the steering rack.

3. Inspect and Replace Suspension Components

• Sub-steps:
  1. Inspect the control arms for cracks or damage; replace if necessary.
  2. Check the condition of the bushings; replace if they are cracked or worn out.
     • Tools required: Socket set, bushing removal tool.
  3. Examine the struts for leaks; consider replacing if damaged.
     • Torque values: Refer to the manufacturer specifications for correct torque settings when reassembling.
  4. Reassemble all components and ensure everything is tightened to the specified torque values.