Porsche Cayenne 2005 Owner's Manual page 225

Tips on driving
f Avoid high engine speeds (max. 2,500 rpm).
f Do not perform manual gear changes when
driving, and try to avoid stopping.
Moving off in the water can be difficult due to
the high resistance and the loose surface in-
volved.
f Start the water crossing at a shallow place at
walking speed.
f After checking the body of water, take the
shortest path through it.
f Never drive into the water at high speed. The
resulting "bow wave" could damage the engine
and its accessories.
f Adjust your driving style to the unfamiliar sur-
roundings.
f Cross the body of water slowly and at a con-
stant speed.
f Never turn around when crossing a body of wa-
ter.
f If it is not possible to cross the body of water,
the car must be backed out of it in reverse
gear.
The servo pump and alternator can fail if the car is
driven through water for an extended period.
f If the servo pump fails, substantially more
force will have to be exerted in order to steer.
Maintenance note
The car requires a special check after the water
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crossing.
f Remove mud from the tire tread.
f Briefly brake the brakes dry after driving
through the water.
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Humps
f Please observe the chapter "GROUND CLEA-
RANCE" on Page 355.
Note on operation
f Activate Low Range and engage differential
locks if necessary.
Tips on driving
f Just before reaching the hump, ease off the ac-
celerator slightly and use the car's momentum
to cross the hump. This will prevent the car
from jumping over the hump and landing on the
following downward slope at an excessive
speed.
f Avoid high engine speeds (max. 2,500 rpm).
Shifting Gear, Traction Systems
225