The last MOT was fine. Next MOT is Feb. The cam cover gaskets were replaced as a large amount of oil. Since the leak is about the size of inside hand. Have not tried to put a seal on it as aware that can affect other parts. Also know that thicker oil can be added. The car us well maintained full service history injectors, turbo, sepintine belt all replaced. Mileage is 233000 but think that audi A8 has capacity for more? I am thinking of getting it fixed but have had feedback that often does not solve the leak problem? So just wondering if that is others experience?