200 Driving and Driving Safety
Recommended procedure
f Switch off the off-road driving program.
f Clean headlights and tail lights and check them
for signs of damage.
f Clean the front and rear license plates.
f Clean the tire tread with a jet of water and
remove any foreign objects.
f Clean wheels, wheel housings and the
underbody with a jet of water.
f Check whether the vehicle has picked up plant
parts or branches.
These materials increase the risk of fire and
can damage fuel lines, brake hoses, boots of
the axle joints and drive shafts.
f After off-road driving, always check the entire
floor assembly, tires, body structure, steering
system, chassis and exhaust system for signs
of damage.
f After driving for an extended period through
mud, sand, water or substances with a similar
soiling effect, check the brake disks, brake
pads, wheels and axle joints and have them
cleaned.
f If you experience severe vibrations after
driving off-road, check the wheels for foreign
substances. These substances can produce
an imbalance which might be responsible for
the vibrations. Removing these deposits may
remedy the problem.
Off-Road driving on uphill gradients
f Do not turn round when driving on uphill
gradients.
f If it is not possible to climb an uphill gradient,
the vehicle must be backed down in reverse
gear.
f Do not drive over embankments or slopes at
steep diagonal angles.
f If the vehicle starts to tilt, immediately steer in
the direction of the tilt (line of slope).
f When driving on uphill gradients, never let the
vehicle roll back when in neutral or not in gear.
Exclusive use of the footbrake is too risky in
such situations.
Information
f Activate the off-road driving program before
taking extreme uphill or downhill gradients.
f Do not perform manual gear changes when
driving, and try to avoid stopping.
f Avoid high engine speeds.
Traction on uphill gradients
Information
f Activate the off-road driving program and
engage differential lock(s) if necessary.
f When driving uphill, go easy on the accelerator
and make sure that wheels have sufficient
traction (do not spin).
f Do not adjust the vehicle level on a slope.
f Avoid high engine speeds.
f Drive slowly.
Off-Road driving on downhill gradients
f Do not drive over embankments or slopes at
steep diagonal angle.
f Drive downhill slowly, with the front wheels
pointing straight ahead.
f If the vehicle starts to tilt, immediately steer in
the direction of the tilt (line of slope).
f When driving downhill, never let the vehicle roll
when in idle.
f Use engine braking effect.
If the engine braking effect is not sufficient to
appropriately check the speed, gently apply
the footbrake.
f Activate Porsche Hill Control (PHC).
Please see the chapter “PORSCHE HILL
CONTROL (PHC)” on page 193.
Information
f Activate the off-road driving program. Off-road
ABS is switched on automatically.
f Do not perform manual gear changes when
driving, and try to avoid stopping.
f Do not adjust the vehicle level on a slope.
The special control mechanism of the off-road
ABS permits controlled brief lock-up of the front
wheels so that they can dig into the loose surface
more effectively.
Locked wheels slip and can no longer be steered.
f When driving down steep hills on unpaved
surfaces, brake carefully to prevent sliding.
Avoiding Overturning
Avoiding Overturning
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