▶ The internet is a powerful tool. The owner of this 2006 Ford Fiesta had researched the problem with their vehicle extensively online, so they were confident when booking in the vehicle to have the nearside CV joint replaced. The symptoms included a knocking noise and a banging sound when turning, but the diagnosis was slightly out.
Thankfully, the owner decided not to drive the vehicle to us, instead getting it recovered via their breakdown service. When it arrived, it took only a couple of seconds to realise that the CV joint was fine and a broken spring was causing all the problems. It was also almost the cause of a loss of braking, because when the spring had snapped and shot down from the strut, it had caught the metal brake pipe running across the inner wing, almost tearing it from the union. A close call, indeed.
The brake pipe had been damaged by the broken spring and had almost ripped away.