I have an oil leak somewhere on the firewall side of the engine. The oil is leaking out onto the driveway on the right side of the engine however it is also getting on the exhaust pipe under the turbo. The oil is wetting the underside of the chassis on the left side but not right side. Also when driving I am getting a fine mist onto the rear window from the leak. I took the car in for service and was told that it was the cam bearing seal which was repaired/replaced. This did not fix the leak as it is still leaking just like before. Educate me please. are there oil lines to the turbo, could this be the source. Other than that I do not have a clue. I need some help so that when I go back to the service shop I can speak better than they.