Operation
Switch off the parking lamps and lowbeam headlamps when you leave the vehicle. This prevents the battery from discharging.
If the battery has been excessively
discharged, the parking lamps or standing
lamps are automatically switched off to
enable the next engine start. Always park
your vehicle safely and sufficiently lit
according to legal standards. Avoid the
continuous use of the
parking lamps
for several hours. If possible, switch on the
right or the
left standing lamp.

1
Left-hand standing lamps
2
Right-hand standing lamps
3
Parking lamps, side marker
lamps,
license plate and instrument cluster
lighti
4
Automatic headlamp mode/daytime
running lamps
5
Low-beam/high-beam headlamps
If you hear a warning tone when you leave the vehicle, the lights may still be switched on.
► Turn the light switch to
.
The turn signals, high-beam headlamps and the high-beam flasher are operated using the combination switch .
The exterior lighting (except the parking/
standing lamps) switches off automatically if
you:
• remove the SmartKey from the ignition lock
• open the driver's door with the SmartKey
in position 0.
Low-beam headlamps

1
Left-hand standing lamps
2
Right-hand standing lamps
3
Parking lamps, side marker
lamps,
license plate and instrument cluster
lighti
4
Automatic headlamp mode/daytime
running lamps
5
Low-beam/high-beam headlamps
► To switch on the low-beam headlamps:
turn the SmartKey in the ignition lock to position 2 or start the engine.
► Turn the light switch to
.
The
indicator lamp in the
instrument
cluster lights up.
Daytime running lamps
Daytime running lamps in Canada

1
Left-hand standing lamps
2
Right-hand standing lamps
3
Parking lamps, side marker
lamps,
license plate and instrument cluster
lighti
4
Automatic headlamp mode/daytime
running lamps
5
Low-beam/high-beam headlamps
The daytime running lamps function is required by law in Canada. It cannot therefore be deactivated.
► Turn the light switch to
.
With the engine running: depending on the ambient light, the daytime running lamps or the low-beam headlamps are switched on.
When the low-beam headlamps are
switched on, the
indicator lamp in
the
instrument cluster lights up.
When the engine is running and the vehicle is stationary: if you move the selector lever from a drive position to P, the daytime running lamps/low-beam headlamps go out after three minutes.
When the engine is running, the vehicle is
stationary and in high ambient light
brightness: if you turn the light switch
to
, you turn on the daytime running
lamps and parking lamps.
If the engine is running and you turn the light
switch to
, the manual settings take
precedence over the daytime running lamps.
Daytime running lamps in the USA

1
Left-hand standing lamps
2
Right-hand standing lamps
3
Parking lamps, side marker
lamps,
license plate and instrument cluster
lighti
4
Automatic headlamp mode/daytime
running lamps
5
Low-beam/high-beam headlamps
In the USA, the daytime running lamps are deactivated upon delivery from the factory.
► To activate the daytime running lamps
: activate the daytime running lamps function in the on-board computer .
► Turn the light switch to
.
With the engine running: depending on the ambient light, the daytime running lamps or the low-beam headlamps are switched on.
When the low-beam headlamps are
switched on, the
indicator lamp in
the
instrument cluster lights up.
If the engine is running and you turn the light
switch to
or
, the manual settings
take precedence over the daytime running
lamps.
Automatic headlamp mode
ARNING If the light switch is set to
and it is foggy,
snowing or there is poor visibility, the lowbeam
headlamps will not come on
automatically. This could endanger you and
others. In such situations turn the light switch
to
.
The automatic headlamp feature is only an aid. The driver is responsible for the vehicle's lighting at all times.

1
Left-hand standing lamps
2
Right-hand standing lamps
3
Parking lamps, side marker
lamps,
license plate and instrument cluster
lighti
4
Automatic headlamp mode/daytime
running lamps
5
Low-beam/high-beam headlamps
► To switch on automatic headlamp mode:
turn the light switch to
.
SmartKey in position 1 in the ignition lock: the parking lamps are switched on or off automatically depending on the brightness of the ambient light.
With the engine running: if you have activated the daytime running lamps function in the on-board computer, the daytime running lamps or the low-beam headlamps are switched on or off automatically depending on the brightness of the ambient light.
When the low-beam headlamps are
switched on, the
indicator lamp in
the
instrument cluster lights up.
Front fog lamps (except AMG vehicles)
WARNING
If you suspect that driving conditions will be
foggy, turn the light switch to
before you
start your journey. Your vehicle may
otherwise not be visible and you could
endanger yourself and others.


1
Left-hand standing lamps
2
Right-hand standing lamps
3
Parking lamps, side marker
lamps,
license plate and instrument cluster
lighti
4
Automatic headlamp mode/daytime
running lamps
5
Low-beam/high-beam headlamps
6
Fog lamps (except AMG vehicles)
7
Rear fog lamp
► To switch on the fog lamps: turn the SmartKey in the ignition lock to position 2 or start the engine.
► Turn the light switch to
,
or
.
► Press the
button.
The green
indicator lamp in the
instrument cluster lights up.
► To switch off the front fog lamps: press
the
button.
The green
indicator lamp in the
instrument cluster goes out.
Only vehicles with front fog lamps have the fog lamps function.
Adjusting the steering wheel
manually
WARNING
If the steering wheel is unlocked while the
vehicle is in motion, it could change position
unexpectedly. This could cause you to lose
control of the vehicle. There is a risk of an
acciden ...
Tires
GL 350 BlueTEC 4MATIC
All-weather tires
R 19
R 20
All-terrain tires
R 18
R 19
Winter tires
R 18
3 Use of snow chains not permitted. Observe the notes under "Snow chains".
...
Loading guidelines
WARNING
Always fasten items being carried as securely
as possible using cargo tie-down rings and
fastening materials appropriate for the weight
and size of the load.
In an accident, during hard ...