Why is there an abnormal noise when turning the Sagitar steering wheel?
4 Answers
The reason for the abnormal noise when turning the Sagitar steering wheel is the lack of lubrication in the steering column dust cover. Here is an introduction to the content related to the friction sound when turning the steering wheel: 1. Lack of oil in the shock absorber's plane bearing: Listen at the hood to see if the sound comes from the top of the shock absorber. If it is the plane bearing of the shock absorber making noise, you can apply some butter to the plane bearing. If it still makes noise after applying butter, it can only be replaced. 2. Loose balance rod rubber: Check whether the balance rod rubber is loose or damaged. Loose or damaged balance rod rubber will not only make noise when turning the steering wheel but also make noise when driving on uneven roads. Loose balance rod rubber can be solved by adding shims. If it is damaged, it can only be replaced.
I've driven quite a few German cars, and this issue with the Sagitar is actually quite common. There are several typical situations for steering wheel noises: a clunking sound when turning usually requires checking the steering ball joints and lower arm bushings, as these rubber components can loosen when aged; a rustling sound when turning is likely due to a worn clock spring (spiral cable), which is located inside the steering wheel; squeaking noises during cold starts in winter are often caused by friction in the dust boots, and applying some lubricant can solve this. If there's also noise when going over bumps, it's worth checking the stabilizer bar bushings and shock absorber top mounts. I suggest you turn the steering wheel while stationary and have a friend help locate whether the sound is coming from inside the steering wheel or the chassis. For older models with hydraulic power steering, also check the power steering fluid level and hose pressure.
Just helped a neighbor with the same issue last week. The squeaking noise from the Sagitar's steering wheel is mostly caused by friction in the steering column dust cover, especially noticeable in dry weather. Use a syringe to inject some white lithium grease into the folds of the dust cover to alleviate it. If there's a clicking sound coming from below the steering wheel, you'll need to inspect the steering universal joint and cross shaft – I've seen many cases of loose screws. For newer models with electric power steering, also consider potential torque sensor issues; this component is located near the steering angle sensor. By the way, does the steering wheel make noise when adjusting height? If so, check the rack in the adjustment mechanism. As a last resort, remove the steering wheel airbag to thoroughly inspect the contact plate underneath.
I've experienced steering wheel noise issues three times. The first was with my own car - the floor mat was interfering with the steering column, and trimming the excess solved it. The second time was a friend's car where worn inner tie rod ends caused knocking sounds when turning, requiring a $600 assembly replacement. The third case was most troublesome - a damaged clock spring caused rustling noises during steering along with intermittent horn operation. I recommend first checking external factors: whether floor mats interfere with the steering column, or if there are wheel rim scratches. Then try turning with the ESP system disabled, as electronic stability control intervention can sometimes produce audible feedback. If you're mechanically inclined, you can remove the lower steering wheel trim to inspect whether wiring harnesses show abrasion from the steering column.
