What Causes a BMW Steering Wheel to Become Hard to Turn?

[SanKylie]

BMW steering wheel becoming hard to turn can be caused by the following reasons: 1. Insufficient power steering fluid: Power steering fluid is a medium oil used in the car's power steering pump, serving to transmit steering force and provide cushioning. The power steering fluid needs to be replaced regularly, and checked for leaks. When the fluid is insufficient, the steering will feel heavy and stiff. 2. Low tire pressure: Low tire pressure increases the contact area between the tire and the road surface, leading to greater friction and making steering more difficult, resulting in a heavy steering wheel, which is not conducive to driving safety. 3. Toe-in: Toe-in can also affect the car's steering. Toe-in helps the steering wheels automatically return to the center, ensuring the car can drive straight stably. Therefore, issues in this aspect can also cause heavy steering. 4. Steering gear or power steering pump failure: The steering gear and power steering pump also affect the car's steering. Any failure in these two critical components can make steering difficult. Issues such as universal joints, chassis suspension stabilizer bars, or plain bearings should not be overlooked.