Air Filter; Combination Filter; Manual Transmission Oil - Porsche CARRERA GT-2004 Manual

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.
134
Maintenance, Car Care

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.