Lights and windshield wipers, Exterior lighting – Mercedes-Benz M-Class 2012 Owners Manual User Manual
Page 112

Automatic headlamp mode
X
To switch on automatic headlamp
mode: turn the light switch to c or
Ã.
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: depending on the
brightness of the ambient light, the daytime
running lamps
6
or the low-beam headlamps
are switched on or off automatically.
When the low-beam headlamps are
switched on, the L indicator lamp in the
instrument cluster lights up.
G
WARNING
If the light switch is set to c or Ã, the
low-beam headlamps will not come on
automatically if it is foggy. This could
endanger you and others. Therefore, turn the
light switch to L in fog.
The automatic headlamp feature is only an
aid. The driver is responsible for the vehicle's
lighting at all times.
Rear fog lamp
X
To switch on the rear fog lamp: turn the
SmartKey in the ignition lock to position 2
or start the engine.
X
Turn the light switch to L or c or
Ã.
If the light switch is set to c or Ã,
the rear fog lamp only lights up if the low-
beam headlamps are on.
X
Press the R button.
The yellow R indicator lamp in the
instrument cluster lights up.
X
To switch off the rear fog lamp: press the
R button.
The yellow R indicator lamp in the
instrument cluster goes out.
i
If you switch the engine off (SmartKey in
position 1 in the ignition lock) and then
restart it, the previous rear fog lamp
settings are restored.
Rear fog lamp
X
To switch on the rear fog lamp: turn the
SmartKey in the ignition lock to position 2
or start the engine.
X
Turn the light switch to L or c or
Ã.
If the light switch is set to c or Ã,
the rear fog lamp only lights up if the low-
beam headlamps are on.
X
Press the R button.
The yellow R indicator lamp in the
instrument cluster lights up.
X
To switch off the rear fog lamp: press the
R button.
The yellow R indicator lamp in the
instrument cluster goes out.
i
If you switch the engine off (SmartKey in
position 1 in the ignition lock) and then
restart it, the previous rear fog lamp
settings are restored.
Headlamp cleaning system
The headlamps are cleaned automatically if
the "Wipe with washer fluid" function is
operated ten times while the lights are on and
the engine is running (
Y
page 118). When you
switch off the ignition, the automatic
headlamp cleaning system is reset and
counting is resumed from 0.
6
Only if daytime running lamps have been activated via the on-board computer.
110
Exterior lighting
Lights
and
windshield
wipers