Porsche Cayman Problem Report
Porsche Cayman Rear Main Seal/Intermediate Support Cover O-ring may Leak Oil
Engine oil leaks can occur at the rear main seal and/or intermediate support cover o-ring; a revised seal is available. A careful diagnosis with proper tools is necessary to verify dimensional accuracy of the crankshaft to engine block.
An engine oil leak may develop for the valve cover gasket. Gasket replacement will be required...