I purchased a 55 plate Seat Altea from CarGiant on 7th of June 2009 with 83,075 miles (verified) on the clock. It seems to have been and still drives as if it is trouble free, however when carrying out an 85k oil change (as recommended by yourself) I have noticed oil at the inside of the protective tray under the engine bay. Further examination has found that there is oil all over the turbo, found at the back of the engine and out of sight from the top (under the bonnet) and only viewable if you are right under the car with the protective tray removed. As far as I can tell, this is where the oil appears to be leaking from. So far not noticed any discoloration in smoke other then it being slightly black when turbo is being used (revving passed 2k). The car has a full service history with Seat - serviced approx every 9k miles - 8 services with the distance between the last two services being 15k miles- when mileage was recorded at 79,682. The car now has 85,865 miles on it, I have put on 2,790 miles since purchase. What action, if any, can I request either Cargiant or Seat to take?