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first time, ask an experienced off-road driver to
accompany and advise you.
Driving systems for driving off-road
The following driving systems and equipment help
you to safely drive off-road:
ABS deactivation (
page 206)
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Differential locks (
page 229)
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Transfer case (
page 232)
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Checklist before driving off-road
Check the fuel and AdBlue
#
if necessary (
page 280).
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Engine: check the oil level and top up with oil
#
if necessary (
page 326). Before driving up
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or down extreme inclines or slopes, fill the oil
to the maximum level.
%
If you drive up or down extreme inclines or
slopes, the on-board computer may display
the 4 symbol. The engine operating
safety is not put at risk if you have filled the
engine oil to the maximum level before the
journey.
Automatic transmission: check the oil level
#
and top up the oil (
page 327).
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Before driving up or down extreme inclines or
slopes, fill the oil to the maximum level.
Vehicle tool kit: check that the jack is work‐
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ing (
page 337).
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Make sure that a wheel wrench, wooden
#
underlay for the jack, a robust tow rope and a
folding spade are carried in the vehicle.
Wheels and tyres: check the tyre tread
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depth (
page 373) and tyre pressure
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(
page 375).
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Driver's seat: block the horizontal springing.
#
Mud flaps: fold the mud flaps forward and
#
attach them.
Folding underride guard: fold the underride
#
guard to the off-road position (
Rules for off-road driving
& WARNING Risk of injury to the hands
when driving over obstacles
If you drive over obstacles or in tyre ruts, the
steering wheel may whip around and cause
injuries to the hands.
Steering wheel must always be held
#
securely with both hands.
#
& WARNING Risk of accident with differen‐
If you switch on the automatic drive program
when driving off-road or with the differential
lock engaged, the electronic management
system may intervene when this is undesired.
Due to the interruption in the tractive power,
®
levels and top up
the vehicle can roll back on uphill gradients,
for example.
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On gradients and inclines, always follow the line
of fall and avoid changing gear. Drive up gradi‐
ents without stopping until you are at the top of
the hill. If your vehicle is unable to cope with the
gradient, stop. Shift into reverse gear and allow
the vehicle to slowly roll backwards.
Vehicles with an automated manual transmission:
the vehicle has a selectable crawler mode. When
crawler mode is activated, the vehicle automati‐
cally crawls forwards after the service brake has
been released and continues to roll at idling
speed (
ing conditions, switch to the manual drive pro‐
gram. This enables you to initiate the gear selec‐
tion process manually, according to the driving
conditions, and to avoid interruptions in the trac‐
tive power.
Select the offroad shift program adapted for off-
road driving. This enables you to initiate the gear
selection process manually, according to the driv‐
ing conditions, and to avoid interruptions in the
tractive power.
page 268).
/
Vehicles with level control: leave the vehicle
frame set to driving level (
the chassis frame only when necessary and
always for a short time only, e.g. to drive over a
steep hilltop. When you raise the vehicle frame,
traction is impaired.
Also observe the following points:
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Driving mode 271
When driving over obstacles, expect
increased steering forces at short
notice.
tial lock engaged
Always drive carefully and be ready to
brake.
Switch to the manual drive program in
particularly demanding driving situa‐
tions.
page 218). In particularly difficult driv‐
/
page 263). Raise
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securely stow away all loose objects
securely fasten the load
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