my BMW 3 Series makes a grinding noise when turning what could it be

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Wear safety glasses and gloves.

2. Inspect and Replace Power Steering Fluid

• Locate the power steering reservoir.
• Use a turkey baster to remove old fluid and replace it with new fluid as specified by the manufacturer.
• Check for leaks around the hoses and connections.

3. Replace Worn Steering Components

• Tools Required: Socket set, wrenches, torque wrench.
• Remove the front wheels for easier access to steering components.
• Inspect and replace any worn tie rods or ball joints:
  • Disconnect the tie rod end or ball joint from the steering knuckle by removing the retaining nut.
  • Use a ball joint separator if necessary.
  • Install the new component, tightening the nut to the manufacturer’s specified torque.

4. Inspect and Replace CV Joints

• Tools Required: CV joint puller, socket set.
• Lift the vehicle and remove the wheel.
• Inspect the CV joint boot for tears and grease leakage.
• If damaged, remove the axle assembly and replace the CV joint.
  • Remove the axle nut and disconnect the axle from the transmission.
  • Install the new CV joint and reassemble, ensuring proper torque settings.

5. Replace Wheel Bearings (if necessary)

• Tools Required: Bearing puller, socket set, torque wrench.
• Remove the brake caliper and rotor to access the wheel hub.
• Use a bearing puller to remove the old wheel bearing from the hub.
• Install the new bearing with the proper installation tool and torque to specifications.