Mercedes-Benz GL450 Operator's Manual page 280

Basic settings
The following vehicle chassis ride heights
can be selected using the vehicle level
switch in the center console:
Level Driving situation
Raised For off-road driving or driv-
ing in rough terrain. The in-
dicator lamp is on.
Highway For driving on paved roads
in fair or better condition.
The indicator lamp is off.
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The third available level is the high-speed
level that is set automatically.
The following is the approximate change in
ride height for each of the level settings:
Level Ride height
Raised + 3.1 in (80 mm)
Highway +/- 0 in (0 mm)
High-speed - 0.6 in (-15 mm)
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Vehicles with ADS*:
Depending on the ADS setting ( page 276), the
vehicle will be lowered to the high-speed level
when traveling at higher speeds. At speeds
below 40 mph (64 km/h) at the latest, it will be
returned to the highway level.
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The high-speed level is not available if tow-
ing a trailer. For more information on towing a
trailer, see "Trailer towing" ( page 362).
Controls in detail
Driving systems
Raised level
Only select the raised level if appropriate
for the driving situation encountered.
Otherwise:
fuel consumption may increase
handling characteristics of the vehicle
may be unfavorable
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You can select the raised level at speeds up
to 40 mph (64 km/h). At higher speeds, the
message n Level selection not
permitted appears in the multifunction dis-
play.
Start the engine ( page 41).
If indicator lamp 2 ( page 278) is off.
Press switch 1 ( page 278).
Indicator lamp 2 flashes. The vehicle
adjusts to the raised level.
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