One problem related to engine oil leaking has been reported for the 2004 Porsche 911. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Porsche 911 based on all problems reported for the 2004 911.
Driving on freeway when heard a weird noise from the back of the car and a message in red came up on the instrument cluster, lost power to engine, pulled over and oil leaking from engine. Engine completely destroyed due to ims failure. Engine was replaced with re-manufactured engine by dealer.