Mercedes-Benz R-Class 2012 Owners Manual - Manual (Page 184)

The vehicle is automatically lowered to high-
speed level when you:
R
drive faster than 70 mph (112 km/h)
R
drive between 60 mph (96 km/h) and
70 mph (112 km/h) for approximately
20 seconds.
The individual vehicle levels differ from
highway level as follows:
R
+1.97 in (+ 50 mm) at the raised level
R
+/-0 in (+/-0 mm) at the highway level
R -0.47 in (-12 mm) at the high-speed level
i The high-speed level is not available if you
are pulling a trailer. Observe the notes on
driving with a trailer (
Y page 191).
i Observe the speed limitations. Drive
carefully at an appropriate speed.
Raised level
Only select raised level when this is
appropriate for the road conditions.
Otherwise, fuel consumption may increase
and handling may be affected.
If you select the raised level at a speed of over
40 mph (64 km/h) the
Level Selection
Not Permitted message appears in the
multifunction display.
X Start the engine.
Indicator lamp ; is not lit:
X Press button :.
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 V, U, * or &
button on the multifunction steering wheel,
the message will disappear.
Once the vehicle has reached raised level,
indicator lamp ; remains lit. A message
appears in the multifunction display for
approximately five seconds, e.g.:
The level is automatically taken up to highway
level if you drive faster than 25 mph
(40 km/h).
Highway level
! Make sure that there is enough ground
clearance when the vehicle is being
lowered. It could otherwise hit the ground,
damaging the underbody.
X Make sure that the doors are closed.
X Start the engine.
182
Driving systems
Driving and parking