Smoke, oil consumption, and fuel trim issues with various fault codes can be traced to an internal leak at the oil separator.
Problems for specific Porsche 911 years:
Car problem reports
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Most reported 2009 Porsche 911 problems
A small leak in the coolant reservoir can cause persistent coolant loss. To ensure engine longevity, coolant loss and overheating issues need to be resolved. Out technicians tell us the proper coolant fill procedure must be followed when refiling the cooling system.
Pay close attention to warning lights and have the brakes inspected regularly—immediately address any brake problems. Hard driving habits will cause excessive brake pad and rotor wear.
Cam tensioner/cam timing issues can cause the Check Engine Light to illuminate.
Abnormal noises from the intermediate shaft area may be signs of impending engine failure, don't wait to get this issue checked out!
Due to air leaks at various locations, the Check Engine Light may illuminate.
Various fuel trim and oxygen sensor limit fault codes can be traced to an internal vacuum leak at the oil separator.