Mercedes-Benz GL-Class 2007 Owners Manual - Manual (Page 360)

359
Operation
Driving instructions
Checklist before off-road driving
Engine oil level
ț Check the engine oil level with the oil
dipstick (
୴ page 381).
Only with a proper oil level can the
vehicle obtain a trouble-free oil supply,
even on steep gradients.
Tires
ț Check the tread depth and maintain
specified tire inflation pressure
(a placard with the recommended tire
inflation pressures is located on the
driver’s door B-pillar (
୴ page 389)).
ț Check tires for possible damage and
remove foreign objects.
ț Replace missing valve caps.
Rims
ț Dented or bent rims can cause tire in-
flation pressure loss and damage the
tire beads. For this reason, check and,
if necessary, change rims before driv-
ing off-road.
Vehicle tool kit
ț Check if the vehicle jack ( ୴ page 497)
is functional.
ț In all cases take the vehicle tool kit, a
strong tow rope, a shovel and a small
plank (to put under the vehicle jack on
sandy soil) with you.
ț 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.
ț Do not initiate jumps with the vehicle. It
interrupts the forward momentum of the
vehicle.
ț Always drive onto slopes with the engine
running and the vehicle in gear.
ț Do not shift automatic transmission to
position N.
Warning!
G
Do not reduce the tire inflation pressure
before driving through sand. However, if you
do so, remember to correct the tire inflation
pressure ( ୴ page 396) before continuing
your trip. Driving with reduced tire inflation
pressure increases the risk of losing control
of the vehicle and rolling over.
!
If the engine oil level warning lamp
( ୴ page 476) 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 (
୴ page 381).
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.