Why do coil springs fail on McPherson struts?
Why do coil springs fail on McPherson struts? springs, and the challenges they bring when replacing them on McPherson struts. A flexible coating is applied to coil springs when they’re made so as to reduce the risk of corrosion. Over time contact between coils (as the spring is repeatedly compressed in service) and stones thrown up by tyres can cause damage to this coating. What happens when a coil spring breaks on a car? With bigger/wider wheels fitted, the tyre sidewall on a modern car is much closer to the spring and if the spring breaks, tyre damage is likely...