190
Maintenance, Car Care
Air Filter The air filter is on the left-hand side of the engine 
compartment. 
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. 
fIn dusty conditions, check the filter element 
more frequently and replace if necessary. Combination filterThe fresh air passing through the combination 
filter into the passenger compartment is virtually 
free of dust, pollen, and unpleasant odours.
fIf the outside air is polluted by exhaust fumes, 
press the circulating-air button. 
A dirty filter can be the cause of reduced air 
throughput: 
fHave the filter replaced by an authorized 
Porsche dealer.
Regular filter replacement is part of servicing. 
Automatic Transmission Fluid The torque converter and the transmission are lu-
bricated with Automatic Transmission Fluid (ATF). 
The final drive requires transmission oil. 
fPlease observe the chapter “CAPACITIES” on 
Page 266.
Do not tow the car or run the engine without ATF 
in the transmission. The automatic transmission 
may be damaged by even a tiny speck of dirt, only 
a clean funnel or spout must be used when adding 
AT F.  
The ATF and transmission oil has to be checked 
and changed at the intervals listed in your Mainte-
nance Schedule. 
We recommend that you have the ATF and trans-
mission oil changed at your Porsche dealer, who 
has the required lubricants and the necessary fil-
ling equipment. 
If you suspect an oil leak in the transmission, have 
your authorized Porsche dealer check it out imme-
diately. 
Manual Transmission Oil The transmission oil has to be checked and chan-
ged at the intervals listed in your Maintenance 
Schedule.
fPlease observe the chapter “CAPACITIES” on 
Page 266.
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.