Page 142 of 426

140 Controls in detailControl systemSetting daytime running lamp mode
(USA only)
Move the selection marker with
buttonæ orç to the
Lighting
submenu.
Press buttonj ork repeatedly
until the message
Hdlamp mode
appears
in the multifunction display.The selection marker is on the current
setting.
Press buttonæ orç to select
manual operation (
Manual
) or daytime
running lamp mode (
Constant
)
activated.
With daytime running lamp mode activated
and the exterior lamp switch in
positionM orU, the low beam
headlamps are switched on when the
engine is running.In low ambient light conditions the
following lamps will switch on additionally:
Parking lamps
Tail lamps
License plate lamps
Side marker lamps
For more information on the daytime
running lamp mode, see “Lighting”
(
page 108).
iThis function is not available in
countries where the daytime running
lamp mode is mandatory and therefore
in a constant mode.
iFor safety reasons, resetting the Lighting
submenu to factory settings
(
page 131) while driving will not
deactivate the daytime running lamp
mode.
The following message appears in the
multifunction display:
Lighting - Cannot be completely
reset to factory sets. while
driving.
Page 143 of 426

141 Controls in detail
Control system
Setting locator lighting
With the locator lighting feature activated
and the exterior lamp switch in
positionU, the following lamps will
switch on when the vehicle is unlocked
with the SmartKey during darkness:
Parking lamps
Tail lamps
License plate lamps
Side marker lamps
Front fog lamps
The locator lighting switches off when the
driver’s door is opened.
If you do not open a door after unlocking
with the SmartKey the lamps will switch off
automatically after approximately
40 seconds.
Move the selection marker with
buttonæ orç to the
Lighting
submenu.
Press buttonj ork repeatedly
until the message
Surround lighting
appears in the multifunction display.
The selection marker is on the current
setting.
Press buttonæ orç to switch
the locator lighting function
On.
Turn the exterior lamp switch to
positionU when exiting the vehicle
(page 108).
The locator lighting feature is
activated.Setting night security illumination
(Headlamps delayed shut-off)
Use this function to set whether and how
long you would like the exterior lamps to
illuminate during darkness after exiting the
vehicle and all doors closed.
With the delayed shut-off feature activated
and the exterior lamp switch in
positionU before the engine is turned
off, the following lamps will switch on after
you have removed the SmartKey from the
starter switch:
Parking lamps
Tail lamps
License plate lamps
Side marker lamps
Front fog lamps
If you do not open a door after removing
the SmartKey from the starter switch, the
lamps will switch off automatically after
approximately 60 seconds.
Page 144 of 426
142 Controls in detailControl system
Move the selection marker with
buttonæ orç to the
Lighting
submenu.
Press buttonj ork repeatedly
until the message
Hdlamp delay off
appears in the multifunction display.
The selection marker is on the current
setting.
Press buttonæ orç to select
the desired lamp-on period.
You can select:
0sec.
, the delayed shut-off feature
is deactivated.
15 sec.
, 30 sec.
, 45 sec.
or
60 sec.
, select the desired
lamp-on period.
Turn the exterior lamp switch to
positionU before turning off the
engine (
page 108).
The headlamps delayed shut-off
feature is activated.You can temporarily deactivate the
delayed shut-off feature:
Before exiting the vehicle, turn the
SmartKey in the starter switch to
position0.
Then turn it to position2 and back to
position0.
The delayed shut-off feature is
deactivated. It will reactivate as soon
as you reinsert the SmartKey in the
starter switch.
iYou can reactivate this function within
ten minutes by opening a door.
Page 149 of 426

147 Controls in detail
Control system
Fuel consumption statistics after start
Press buttonÿ orè repeatedly
until the first function of the Trip
computer menu appears in the
multifunction display.
Press buttonj ork repeatedly
until the message
After start
appears
in the multifunction display.
1Distance driven since start
2Time elapsed since start
3Average speed since start
4Average fuel consumption since startFuel consumption since last reset
Press buttonÿ orè repeatedly
until the first function of the Trip
computer menu appears in the
multifunction display.
Press buttonj ork repeatedly
until the message
After reset
appears
in the multifunction display.
1Distance driven since last reset
2Time elapsed since last reset
3Average speed since last reset
4Average fuel consumption since last
reset
iAll statistics stored since the last
engine start will be reset approximately
four hours after the SmartKey in the
starter switch is turned to position0 or
removed from the starter switch.
Resetting will not occur if you turn the
SmartKey back to position1 or2
within this time period.
Page 151 of 426

149 Controls in detail
Control system
You can use the functions in the
TEL
menu
to operate your telephone, provided it is
connected to a hands-free system and
switched on.
Switch on the telephone and
COMAND*.
Press buttonÿ orè on the
steering wheel repeatedly until the
message
TEL
appears in the
multifunction display.
Which messages will appear in the
multifunction display depends on whether
your telephone is switched on or off:
If the telephone is off, the message PHONE OFF
appears in the multifunction
display.
If the telephone is on:
The telephone will then search for a
network. During this time the multi-
function display is empty.
As soon as the telephone has found a
network, the message
READY
appears
in the multifunction display.
This standby message indicates that your
telephone is ready for use and you can
operate it using the control system.Answering a call
When your telephone is ready to receive
calls, you can answer a call at any time. In
the multifunction display you will then see
the message:
Press buttons.
You have answered the call. The
duration of the call appears in the
multifunction display.
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and/or
personal injury.
Page 155 of 426

153 Controls in detail
Automatic transmission
1Current gear range/gear selector lever
position
2Current program mode
The current gear range/gear selector lever
position and program mode (
C/S) appear
in the multifunction display.An additional indication of the current gear
selector lever position can be found on the
cover of the shifting-gate.
The indicators come on when you activate
a switch (e.g. unlocking the vehicle or
opening a door) and go out after approxi-
mately 15 minutes.
When the gear selector lever is in
positionD, you can influence transmission
shifting by:
limiting the gear range
changing gears manuallyWarning!
G
It is dangerous to shift the gear selector
lever out ofP orN if the engine speed is
higher than idle speed. If your foot is not
firmly on the brake pedal, the vehicle could
accelerate quickly forward or reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and when
your right foot is firmly on the brake pedal.
Page 156 of 426

154 Controls in detailAutomatic transmissionOne-touch gearshifting
Even with an automatic transmission you
can change the gears manually when the
gear selector lever is in positionD.
Downshifting
Briefly press the gear selector lever to
the left in theD-direction.
The transmission will shift from the current
gear to the next lower gear. This action
simultaneously limits the gear range of the
transmission (
page 155).Upshifting
Briefly press the gear selector lever to
the right in theD+direction.
The transmission will shift from the current
gear to the next higher gear as permitted
by the shift program. This action simul-
taneously extends the gear range of the
transmission.Canceling gear range limit
Press and hold the gear selector lever
in theD+direction until
D reappears in
the multifunction display.
The transmission will shift from the current
gear range directly to gear rangeD.
Shifting into optimal gear range
Press and hold the gear selector lever
in theD-direction.
The transmission will automatically select
the gear range suited for optimal
acceleration and deceleration. This will
involve shifting down one or more gears.
Warning!
G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced
vehicle control. Your vehicle’s ABS will not
prevent this type of loss of control.
iTo avoid overrevving the engine when
the gear selector lever is moved to
theD-direction, the transmission will
not shift to a lower gear if the engine’s
max. speed would be exceeded.
Page 157 of 426

155 Controls in detail
Automatic transmission
Gear ranges
With the gear selector lever in positionD,
you can limit the transmission’s gear range
by pressing the gear selector lever to the
left (D-), and reverse the gear range limit
by pressing the gear selector lever to the
right (D+).
The selected gear range appears in the
multifunction display (
page 153). If you
press on the accelerator when the engine
has reached its rpm limit, the transmission
will upshift beyond any gear range limit
selected.
Effect
é
The transmission shifts through
fourth gear only.
è
The transmission shifts through
third gear only.
With this selection you can use
the braking effect of the engine.
Effect
ç
The transmission shifts through
second gear only.
Allows the use of engine’s
braking power when driving:
on steep downgrades
in mountainous regions
under extreme operating
conditions
æ
The transmission operates in
first gear only.
For maximum use of engine’s
braking effect on very steep or
lengthy downgrades.