my BMW 5 Series F10/F11 (2010-2017) has no power steering, what could be wrong?

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is on a flat surface and securely lifted if necessary.
• Disconnect the battery to prevent electrical shock.

2. Check Fluid Level

• Remove the power steering reservoir cap.
• Inspect fluid level; if low, top off with the manufacturer-recommended power steering fluid.
• If fluid is dark or contaminated, proceed to replace the fluid.

3. Replace Power Steering Fluid

• Use a turkey baster or siphon to remove old fluid from the reservoir.
• Refill the reservoir with new power steering fluid.
• Start the engine and turn the steering wheel from lock to lock to bleed out air bubbles.

4. Inspect and Replace Power Steering Pump (if necessary)

• Remove the drive belt from the power steering pump using a socket set.
• Disconnect the power steering lines from the pump (be prepared for fluid spillage).
• Unbolt the pump from its mounting and remove it.
• Install the new pump by reversing the removal steps, ensuring all connections are tight.
• Refill the system with fluid and bleed the system again.

5. Inspect and Replace Power Steering Belt (if necessary)

• Check the power steering belt for cracks or fraying.
• Remove the old belt by loosening the tensioner pulley.
• Install the new belt, ensuring it is properly routed and tensioned according to specifications.

6. Reassemble and Test

• Reconnect the battery.
• Start the engine and check for leaks.
• Ensure smooth operation of the steering system by turning the wheel side to side.