Has anyone heard of the Sump plug falling out before? I had the car serviced at the end of September and then mid-way through January - the sump plug literally fell out! The RAC found the plug on the plastic shield so could tell this was the problem. It caused the turbo to fail! The Evoque is diesel and is 6 years old. Please give me your opinions folks? Could the plug fail on its own or is it likely that it just had not been correctly put back after the service? Thank you!