Mercedes-Benz GL-Class: Notes on towing a trailer
Important safety notes
WARNING 
When towing a trailer, incorrect equipment
and driving style could cause you to lose
control of the vehicle.
Towing incorrectly or not observing this
Operator's Manual could lead to damage to
the vehicle and/or serious injuries. Observe
the following guidelines to ensure safe trailer
towing.
Contact a Mercedes-Benz Center if you need
further explanation of the information
contained in this Operator's Manual.
General information
• Only install an approved trailer
coupling on
your vehicle.
Further information on availability and on
installation is available from any authorized
Mercedes-Benz Center.
• The bumpers of your vehicle are not
suitable for installing detachable trailer
couplings.
• Do not install hired trailer couplings or
other detachable trailer couplings on the
bumpers of your vehicle.
• To reduce the risk of damage to the ball
coupling, remove it from the ball coupling
recess when not in use.
Trailer towing
...
Coupling up a trailer
WARNING
While you are coupling or decoupling a trailer,
make sure nobody locks or unlocks the
vehicle and/or opens or closes doors or the
tailgate.
The vehicle's level could change an ...
See also:
Entry Lighting
For vehicles with courtesy lamps, they come on and stay on for a set time whenever
is pressed on the Remote Keyless Entry
(RKE) transmitter.
If a door is opened, the lamps stay on while it is ope ...
Engine Compartment Fuse Block
The underhood fuse block is located in the engine compartment, on the passenger
side of the vehicle.
Lift the cover for access to the fuse/relay block.
Notice: Spilling liquid on any electrical ...
Steering wheel heating
Switching on/off
The steering-wheel heating heats the leather
areas of the steering wheel.
► Make sure that the SmartKey is in
position
2 in the ignition lock.
► To switch on/off: ...
