Mercedes-Benz 2008 GL 450 Operator's Manual page 358

2008 gl-class
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!
Observe the following during off-road
driving:
Keep doors, tailgate, windows, and
tilt/sliding sunroof* closed whenever driving
off-road.
Adjust vehicle speed to condition of terrain.
The more uneven, rutty and steeper the ter-
rain, the lower the speed should be. Drive
through water slowly at an even speed,
avoiding a bow wave.
Be especially careful when driving in un-
known territory. It may be necessary to get
out of the vehicle and scout the path you in-
tend to take.
Watch out for obstacles, such as rocks,
holes, tree stumps and ruts.
Before driving through water, determine its
depth.
Do not stop vehicle while immersed in water,
and do not shut off the engine.
In sandy soil, drive at a steady speed as al-
lowed by conditions. This helps overcome
the vehicle rolling resistance and reduces
the likelihood of the vehicle sinking into the
ground.
Do not initiate jumps with the vehicle. It
interrupts the forward momentum of the
vehicle.
Always drive onto slopes with the engine
running and the vehicle in gear.
Do not shift automatic transmission to
position N.
Warning!
Do not reduce the tire inflation pressure
before driving through sand. However, if you
do so, remember to correct the tire inflation
pressure ( page 395) before continuing
your trip. Driving with reduced tire inflation
pressure increases the risk of losing control
of the vehicle and rolling over.
Driving instructions
Checklist before off-road driving
Engine oil level
Check the engine oil level with the oil
dipstick ( page 380).
Only with a proper oil level can the
vehicle obtain a trouble-free oil supply,
even on steep gradients.
!
If the engine oil level warning lamp
( page 473) comes on while driving, stop the
vehicle in a safe location or as soon at is safe to
do so. Check the engine oil level ( page 380).
G
The engine oil level warnings should not be
ignored. Extended driving with the symbol
displayed could result in serious engine damage
that is not covered by the Mercedes-Benz
Limited Warranty.
Operation
357

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