What are the reasons for abnormal noise when turning the steering wheel of a BMW X5?

[DeJames]

The reasons for abnormal noise when turning the steering wheel of a BMW X5 include friction between plastic parts and damage to the clock spring. The specific causes and solutions are as follows: Friction between plastic parts: Since the steering wheel is usually composed of plastic parts, if the temperature drops, the plastic will harden, naturally leading to friction noise. The solution is to reduce friction. Damage to the clock spring: If the abnormal noise comes from inside the steering wheel, the problem is most likely caused by the clock spring inside the steering wheel. Damage to the clock spring will produce abnormal noise when turning the steering wheel. The solution is to replace the clock spring.