my BMW X5 makes a grinding noise when turning what could it be

Solution

1. Preparation

• Gather all necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the battery to prevent any electrical issues during repairs.

2. Inspect and Replace Power Steering Fluid

• Remove the power steering fluid reservoir cap.
• If the fluid is low or contaminated, drain the old fluid using a turkey baster.
• Refill with manufacturer-recommended power steering fluid.
• Replace the reservoir cap securely.

3. Replace Worn CV Joints (if applicable)

• Lift the front of the vehicle and secure it on jack stands.
• Remove the wheel and tire assembly using a socket set.
• Disconnect the CV joint from the wheel hub by removing the axle nut (torque to manufacturer's specification upon reassembly).
• Slide the CV axle out of the transmission or differential.
• Install the new CV joint by reversing the removal process, ensuring all connections are secure.

4. Inspect and Replace Wheel Bearings (if applicable)

• With the wheel removed, check for any play in the wheel bearing by rocking the wheel back and forth.
• If necessary, remove the hub assembly to access the wheel bearing.
• Replace the wheel bearing using a bearing puller and install a new bearing using a press.
• Reassemble the hub and wheel, torqueing the axle nut to the manufacturer's specification.

5. Inspect and Replace Steering Rack (if applicable)

• If the steering rack is determined to be faulty, disconnect the steering column and power steering lines.
• Remove the mounting bolts securing the steering rack to the subframe.
• Install the new steering rack by reversing the removal process.
• Reconnect the steering column and power steering lines, ensuring all connections are tight.