Mercedes-Benz ML350 Operator's Manual page 141

Controls in detail
Lighting
Turn the exterior lamp switch to
position U.
With the SmartKey in starter switch
position 1, only the parking lamps will
switch on and off automatically.
When the engine is running, the low
beam headlamps, the tail and parking
lamps, the license plate lamps, and the
side marker lamps will switch on and
off automatically.
140
Daytime running lamp mode
Turn the exterior lamp switch to
position M or U.
When the engine is running, the low beam
headlamps are switched on.
In low ambient light conditions, the
following lamps will switch on additionally:
Tail and parking lamps
License plate lamps
Side marker lamps
For nighttime driving you should turn the
exterior lamp switch to position B to
permit activation of the high beam head-
lamps.
Canada only
The daytime running lamp mode is manda-
tory and therefore in a constant mode.
When the engine is running, and you shift
from a driving position to position N or P,
the low beam headlamps will switch off
with a three-minute delay.
When the engine is running, and you
turn the exterior lamp switch to
position C, the parking lamps
switch on additionally.
turn the exterior lamp switch to
position B, the manual headlamp
mode has priority over the daytime
running lamp mode.
The corresponding exterior lamps
switch on ( page 54).