A month ago my four-year-old Mercedes-Benz GLC had a serious malfunction as I was driving through town. On a bend, the power steering failed causing the car to jerk severely to the left and leaving me with no control over the steering. The fact that I was driving slowly almost certainly saved me and our one-year-old child from an accident.
The car had to be towed to the local Mercedes dealer which has identified a faulty power steering electrical motor. I have been told that this is only supplied as part of a complete steering rack, and have been quoted about £3,500 plus labour costs.