Mercedes-Benz 2009 GL-Class Automobile User Manual


 
Transfer case
142
LOW RANGE mode (Canada only)
The LOW RANGE mode is available on
vehicles with enhanced off-road package.
In the following situations you should switch
to the LOW RANGE mode:
R
during off-road driving
R
before driving through water
R
when towing up or down on steep gradients
With LOW RANGE selected, the engine’s
power delivery and the shifting behavior of
the automatic transmission are adjusted.
Furthermore, the ABS, the ESP
®
, and the
4-ETS functions especially adapted to off-
road travel are activated.
For more information on off-road driving, see
“Off-road driving” (Y page 303).
For information on driving safety systems
during LOW RANGE mode, see “Driving safety
systems” (Y page 75).
Gear ranges
There are two possible settings.
HIGH
RANGE
Road position for all normal
driving situations.
(LOW RANGE mode off)
LOW
RANGE
Off-road position for
traveling on rough terrain.
(LOW RANGE mode on)
Also use the off-road
position when driving on-
road on steep gradients,
especially when towing a
trailer.
LOW RANGE acts by raising
the engine’s gear ratio. The
vehicle travels at roughly
third the speed compared to
when in HIGH RANGE
position, leading to an
increase in the engine’s
drive power.
G
Warning!
Always wait until the procedure of shifting
from HIGH RANGE to LOW RANGE – and
from LOW RANGE to HIGH RANGE – has
been entirely completed. During this
procedure do not turn off the engine or shift
the automatic transmission into another
gear.
If you do not wait until the shifting
procedure has been entirely completed
then it might not be correctly performed.
The transfer case might be in neutral, thus
interrupting the transfer of power between
the engine and the drive axle.
The vehicle is then freely movable, even if
a gear has been selected, and could
unintentionally be set into motion –
particularly on up – or downhill grades. This
could lead to an accident and cause injury
to yourself and others.
Please observe related messages
appearing in the multifunction display.
Controls in detail