Mercedes-Benz 2005 M-Class Operator's Manual page 205

Warning!
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced vehi-
cle control. Your vehicle's ABS will not pre-
vent this type of control loss.
Do not engage the transfer case in position
LOW when driving on ice or packed snow. At
speeds below 18 mph (30 km / h) vehicle
steering is adversely affected by the LOW
RANGE - ABS ( page 77).
Road salts and chemicals can adversely af-
fect braking efficiency. Increased pedal
force may become necessary to produce
the normal brake effect.
Depressing the brake pedal periodically
when traveling at length on salt-strewn
roads can bring road-salt-impaired braking
efficiency back to normal.
If the vehicle is parked after being driven
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on salt-treated roads, the braking efficien-
cy should be tested as soon as possible af-
ter driving is resumed.
Warning!
Make sure not to endanger any other road
users when carrying out these braking ma-
neuvers.
Warning!
If the vehicle becomes stuck in snow, make
sure that snow is kept clear of the exhaust
pipe and from around the vehicle with the
engine running. Otherwise, deadly carbon
monoxide (CO) gases may enter vehicle in-
terior resulting in unconsciousness and
death.
To assure sufficient fresh air ventilation,
open a window slightly on the side of the ve-
hicle not facing the wind.
Driving instructions
Warning!
The outside temperature indicator is not de-
signed to serve as an ice-warning device and
is therefore unsuitable for that purpose. In-
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dicated temperatures just above the freez-
ing point do not guarantee that the road
surface is free of ice.
For more information, see "Winter driving"
( page 235).
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Operation
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203