my BMW 5 Series has a hard steering wheel and it’s difficult to steer, why?

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Park the vehicle on a flat surface and turn off the engine.
• Ensure the vehicle is secure with wheel chocks.
• Tools Required: Socket set, fluid catch pan, OBD-II scanner, power steering fluid, torque wrench.

2. Check and Refill Power Steering Fluid

• Locate the power steering reservoir under the hood.
• Remove the reservoir cap and check the fluid level. If low, top up with the recommended power steering fluid.
• Inspect the fluid for contamination; if it appears dark or has debris, it should be replaced.

3. Inspect for Leaks

• Visually inspect the power steering hoses and connections for any signs of fluid leaks.
• If leaks are detected, replace the damaged hoses or seals.
• Clean any spilled fluid and allow the system to dry.

4. Test Power Steering Pump

• Start the vehicle and listen for any unusual noises coming from the power steering pump.
• Use a multimeter to check the pump's electrical connections.
• If the pump is faulty (no noise or low pressure), replace it.

5. Examine Steering Rack and Column

• Check for any physical damage to the steering rack and column.
• If any components of the steering rack are damaged or worn, replace the steering rack assembly.
• Ensure all bolts and fittings are tightened to the manufacturer’s specified torque settings.

6. Final Checks

• Once repairs are made, recheck the power steering fluid level and top off if necessary.
• Start the vehicle and turn the steering wheel from lock to lock to bleed any air out of the system.
• Check for any leaks or abnormal noises during this process.