Mercedes-Benz R 350 Operator's Manual page 187

Driving systems
184
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 there is always sufficient ground
clearance. You will otherwise damage the
vehicle.
! When you raise the vehicle in such a way
that not all wheels have contact with the
ground, remove the SmartKey from the
ignition lock.
General notes
Level control adapts the vehicle level
automatically to the current operating and
driving situation. This results in reduced fuel
consumption and improved handling.
Make changes to the vehicle level while the
vehicle is in motion. This enables the vehicle
to adjust to the new level as quickly as
possible.
The vehicle level may change visibly if you
park the vehicle and the outside temperature
changes. If the temperature drops, the
vehicle level is lower; with an increase in
temperature, the vehicle level rises.
If you unlock the vehicle or open a door, the
vehicle begins to compensate for load
discrepancies while still parked. However, for
significant level changes, such as after the
vehicle has been stationary for a long period,
the engine must be on. For safety reasons,
the vehicle is only lowered when the doors are
closed. Lowering is interrupted if a door is
opened, and it continues once the door has
been closed.
Basic settings
Select raised level for very poor road
conditions or highway level for normal road
conditions.
The vehicle is automatically lowered to high-
speed level when you:
drive faster than 70 mph (112 km/h)
R
drive between 60 mph (96 km/h) and
R
70 mph (112 km/h) for approximately
20 seconds
The individual vehicle levels differ from
highway level as follows:
raised level: +1.97 in (+50 mm)
R
highway level: +/–0 in (+/–0 mm)
R
high-speed level: –0.47 in (–12 mm)
R
i
The high-speed level is not available if you
are towing a trailer. Observe the notes on
driving with a trailer (
Y
i
Observe the speed limitations. Drive
carefully at an appropriate speed.
Raised level
Start the engine.
X
Indicator lamp ; is not lit:
Press button :.
X
Indicator lamp ; flashes. The vehicle rises
to raised level.
Example: vehicles with the AIRMATIC package and
compass
page 193).