Mercedes-Benz M-Class Operator's Manual page 184

Driving systems
182
For safety reasons, the vehicle can only be
lowered with all doors and the tailgate closed.
Lowering is interrupted if a door or the tailgate
is opened and will continue after the door is
closed again.
!
When driving on extremely rough terrain,
select a high vehicle level in good time.
Make sure that there is always sufficient
ground clearance to prevent damage to the
vehicle.
!
Remove the key from the ignition before
raising one or more wheels with the
appropriate equipment.
For information about driving off-road, see
( page 162).
Y
Basic settings
The extent to which the vehicle is raised or
lowered depends on the basic setting
selected. Select raised level for off-road
driving or highway/high-speed level for
normal roads.
The individual vehicle levels differ from
highway level as follows:
+/-0 in (+/-0 mm) at the highway level
R
–0.6 in (–15 mm) at the high-speed level
R
+2.3 in (+ 60 mm) at the raised level
R
Raised level
Only select raised level when this is
appropriate for the road conditions.
Otherwise, fuel consumption may increase
and handling may be affected.
Start the engine.
X
If indicator lamp ; is not lit:
Press button :.
X
Indicator lamp ; flashes. The vehicle rises
to raised level.
While the adjustment is taking place, a
message appears in the multifunction
display, e.g.:
If you press the % or a button on the
multifunction steering wheel, the message
will disappear.
Once the vehicle has reached raised level,
indicator lamp ; remains lit. The
Rising message disappears from the
multifunction display.
If you attempt to select the raised level at a
speed of over 40 mph (64 km/h), the
More Slowly message appears in the
multifunction display.
Highway/high-speed level
!
Make sure that there is enough ground
clearance when the vehicle is being
lowered. It could otherwise hit the ground,
damaging the underbody.
Start the engine.
X
I n f o r ma t i o n P r o v i d e d b y :
Vehicle
Drive