What Causes the Steering Wheel Noise in BMW 3 Series?
1 Answers
Here are the possible causes of steering wheel noise in BMW 3 Series: 1. Sound from the turn signal return clip: This noise originates from the turn signal return clip and is considered normal. This design serves as a reminder for drivers to turn off their indicators after use. 2. Friction between steering column and floor mat: Improperly installed or poorly designed floor mats may rub against the steering column beneath the wheel, causing abnormal sounds. If the friction is severe, it's recommended to trim or replace the mat with an OEM-approved one. 3. Damaged power steering pump coupling: The power steering pump coupling (also called "flexible coupling") acts as a buffer in the electric power steering system, located between the pump motor and steering gear. If you hear noises when turning the wheel while stationary, or experience noticeable steering wheel vibrations on rough roads, this likely indicates coupling damage. Immediate inspection and replacement at a 4S shop is advised to prevent severe wear on other components. 4. Faulty clockspring (spiral cable): If noises occur inside the steering wheel when turning, it may signal a broken clockspring. Typical symptoms include airbag warning lights, non-functional horn, and malfunctioning steering wheel controls. In such cases, visit a local 4S shop for clockspring replacement.