Porsche Cayenne 2009 Owner's Manual page 310

Inflating tires on vehicles with air
suspension
The bag with the tire filling hose is located under
the loadspace floor in the spare-wheel recess.
1. Take tire filling hose out of the bag.
2. Remove cover in footwell of right front seat.
310
Minor Repairs
B - Screw coupling for compressor connection
C - Pressure tester
D - Hand valve for tire filling
E - Air bleed screw
F - Filler connection for tire valve
3. Screw screw coupling B into the compressor
connection (in footwell of the front passenger
seat).
4. Screw filler connection F onto the tire valve.
Warning!
Danger of injury and risk of damage if the
operating unit is used improperly.
f Use this operating unit only to inflate or to
bleed air from the tires of this vehicle.
5. Switch ignition on.
6. Press hand valve D until the correct tire pres-
sure is achieved.
Monitor the tire pressure with pressure tester
C during the inflation process.
7. Unscrew the screw coupling from the com-
pressor connection.
8. Unscrew filler connection from the tire valve.
9. Stow tire filler hose in the bag.
Note on operation
The compressor features a protective function
against overheating and switches itself off auto-
matically if necessary. The compressor must cool
down for a few minutes after automatic deactiva-
tion.
Reducing tire pressure on vehicles with
air suspension
f Open air bleed screw E until the correct tire
pressure is achieved.
Monitor the tire pressure with pressure tester
C while correcting the tire pressure.