what causes my BMW 5 Series steering light to come on

Solution

1. Preparation

• Gather necessary tools and ensure the vehicle is parked on a level surface.
• Disconnect the negative terminal of the battery to prevent electrical shorts.
• Ensure the engine is cool before starting the repair.

2. Inspect Power Steering Fluid

• Remove the power steering fluid reservoir cap.
• Check the fluid level against the markings on the reservoir.
• If low, top off with the recommended power steering fluid (check owner's manual for specifications).

3. Replace Power Steering Fluid (if necessary)

• Place a drain pan under the power steering pump.
• Disconnect the return line from the pump and allow old fluid to drain completely.
• Reconnect the line and fill the reservoir with new power steering fluid.
• Start the engine and turn the steering wheel from lock to lock to purge air from the system.

4. Check and Replace Power Steering Pump (if faulty)

• Disconnect the power steering pump drive belt using a socket set.
• Remove the pump mounting bolts and disconnect the power and fluid lines.
• Replace with a new power steering pump, ensuring all connections are tight and secure.
• Reinstall the drive belt, ensuring proper tension.

5. Inspect and Replace Steering Angle Sensor (if faulty)

• Disconnect the battery again before working on electrical components.
• Remove the necessary panels to access the steering column.
• Disconnect the wiring harness from the steering angle sensor.
• Remove the sensor and replace it with a new unit, reconnecting the harness securely.
• Reassemble any panels removed during this process.