What Causes the Friction Sound in the S90 Steering Wheel?
1 Answers
Here are the specific reasons for the friction sound when turning the S90 steering wheel: 1. Airbag clock spring failure: If the sound comes from inside the steering wheel, it may be due to interference from the airbag clock spring inside the steering wheel. 2. Lack of lubrication in the shock absorber top bearing: When turning the steering wheel, if the abnormal sound comes from outside the car, it may be due to lack of lubrication in the shock absorber's top bearing. 3. Loose or damaged stabilizer bar bushings: If the sound does not come from the shock absorber's top bearing, check whether the stabilizer bar bushings are loose or damaged. Loose or damaged stabilizer bar bushings not only cause noise when turning the steering wheel but also produce sounds when driving on uneven roads. 4. Dirty power steering fluid: If the power steering fluid is too dirty, it will increase the pressure in the power steering system.