Apart from a few exceptions, BMW utilizes power-assisted rack-and-pinion steering on every single product. In concept, modern-day BMWs are not any different compared to power steering methods from forty years back - turning the steering wheel rotates a shaft, which slides a toothed rack with help from a hydraulic pump https://jaidenkxhrz.blog-eye.com/27357113/5-essential-elements-for-types-of-power-steering-fluid-for-bmw