Porsche carrera gt-2004 User Manual

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Maintenance, Car Care
Air Filter 
A dirty air filter not only reduces engine perfor-
mance, but can lead to premature engine wear. 
Regular filter replacement is part of the routine 
maintenance service. 
f In dusty conditions, check the filter element 
more frequently and replace if necessary.
Combination Filter 
The fresh air passing through the combination fil-
ter into the passenger compartment is virtually 
free of dust, pollen and unpleasant odors. 
f If the outside air is polluted by exhaust fumes, 
press the circulating-air button.
A dirty filter can be the cause of reduced air flow: 
f Have filter replaced by your authorized 
Porsche dealer.
Regular filter replacement is part of the routine 
maintenance service. 
Manual Transmission Oil 
The transmission oil has to be checked and 
changed at the intervals listed in your Maintenance 
Schedule. 
f Please observe the chapter “CAPACITIES” on 
Page 183. 
We recommend that you have the transmission oil 
changed at your Porsche dealer, who has the re-
quired lubricants and the necessary filling equip-
ment. 
If you suspect an oil leak in the transmission, have 
your authorized Porsche dealer check it out imme-
diately.