Passenger Compartment - Mercedes-Benz GL450 Operator's Manual

Make sure the automatic transmission
is set to P ( page 190).
Set the parking brake for the vehicle
( page 66).
Start the engine ( page 56).
Close all doors and the tailgate.
Set the parking brake for the trailer.
Warning!
As soon as you disconnect the electrical
connection between the trailer and the
vehicle, the vehicle will lower. To help avoid
personal injury, make sure no one is near
the wheel housing or underneath the vehicle
before the electrical connection is discon-
nected.
When you uncouple the trailer, the vehicle is
temporarily raised because the springs are
relieved of load. Be especially careful during
this process, as you could otherwise injure
yourself and/or others. Make sure that any
persons remaining in the vehicle do not
press the switches for vehicle level control
or the ADS*.
G Disconnect all electrical plug connec-
tors.
Uncouple the trailer.
Make sure that the trailer coupling is
free of load.
Turn off the engine ( page 67).
Driving instructions

Passenger compartment

Warning!
Always fasten items being carried as secure-
ly as possible.
In an accident, during hard braking or sud-
den maneuvers, loose items will be thrown
around inside the vehicle, and cause injury
to vehicle occupants unless the items are
securely fastened in the vehicle.
The rear cargo compartment is the preferred
place to carry objects. Always use tie down
rings, and if so equipped, always use parti-
tion net* when transporting cargo. The par-
tition net* cannot secure hard or heavy
objects. Always fasten items being carried
as securely as possible using the cargo
tie-down rings in the cargo floor area and
fastening materials.
Operation
G
367