What Causes the Steering Wheel Noise in Mercedes-Benz S320?
2 Answers
Mercedes-Benz S320 steering wheel noise causes and corresponding solutions: Aging of tie rods: Aging of the tie rod ends can cause play in the tie rods, leading to steering wheel noise. Solution: Replace the tie rod ends, but remember to perform a wheel alignment after replacement. Steering gear failure: If there is noise when turning the steering wheel and the steering feel is noticeably uneven, it may be due to excessive wear of the steering gear meshing gears causing excessive clearance. Solution: Replace the steering gear. Aging of power steering belt: Improper tension or aging of the power steering belt. Solution: For mechanically hydraulically assisted steering wheels, if the drive belt tension is improper or the belt is aged, it will cause noise. Adjust or replace the belt.
I've driven older Mercedes models for over a decade and encountered steering wheel noises several times. The most common issue is with the steering column - worn bearings can produce creaking sounds, like an old wooden door opening and closing. Sometimes it's the clock spring (spiral cable) problem, making a clicking noise when turning the wheel to full lock. My S320 had this issue last year, and the inspection revealed a loose steering universal joint - tightening the screws fixed it. Cracked rubber dust boots can also cause friction noises, which can be temporarily relieved with lubricant spray. The key is not to delay repairs - my neighbor stubbornly endured it for half a year and ended up replacing the entire steering gear, costing a fortune. With older cars, you must regularly check steering system fluids, as noises are just the prelude - subsequent repair costs become even more troublesome.
