Road test the car and listen for a metallic clicking from the front while driving slowly in a circle with the steering on full-lock, repeating the check on both full-left and full-right lock. This noise may also be noticeable when pulling away from a standstill with the lock applied. A clicking noise indicates wear in the outer constant velocity joints. If vibration consistent with roadspeed is felt through the car during acceleration, there may be wear in the inner constant velocity joints. If the joints are worn or damaged, currently, only boot kits are available, and the complete driveshaft must be renewed, with exchange driveshafts accessible through a Volvo dealer or specialist.