What is the CV area?

I took my car back last week and again was told that it was stones that was the problem. The stones were cleared but already the next day the sound was just as bad. I’m really not convinced that it’s stones that are the cause of the problem. The tyres are due to get changed next week so I will see w...

When I first noticed a knocking sound the technicians noticed a lot of stones and ice under the rear of the car. When they were removed the sound disappeared for a short while. The sound seems to come and go. Just when I was going to take the car in to get checked again, the sound disappeared. About...