Page 145 of 491

144 Controls in detailLightingLocator lighting and night security illu-
mination
The locator lighting and the night security
illumination are described in the “Control
system” section, see (
page 171) and
(
page 172).
Fog lampsFront fog lamps
Switch on the low beam headlamps
(page 51).
Pull out the exterior lamp switch to first
stop.
The front fog lamps are switched on.
The green indicator lamp‡ in the
exterior lamp switch comes on
(page 24).
Push in the exterior lamp switch.
The front fog lamps are switched off.
The green indicator lamp‡ in the
exterior lamp switch goes out.
Warning!
G
In low ambient lighting or foggy conditions,
only switch from position U to B with
the vehicle at a standstill. Switching from
U to B will briefly switch off the head-
lamps. Doing so while driving in low ambient
lighting conditions may result in an acci-
dent.
iFog lamps will operate with the parking
lamps and / or the low beam head-
lamps on. Fog lamps should only be
used in conjunction with low beam
headlamps. Consult your State or Prov-
ince Motor Vehicle Regulations regard-
ing allowable lamp operation.iFog lamp cannot be switched on with
the exterior lamp switch in
positionU. For switching on the fog
lamps, turn exterior lamp switch to
positionB first.
Page 147 of 491
146 Controls in detailLightingHazard warning flasher
The hazard warning flasher can be
switched on at all times, even with the
SmartKey removed from the starter switch
or with the with the SmartKey with
KEYLESS-GO* removed from the vehicle.
The hazard warning flasher switches on
automatically when an air bag deploys.
The hazard warning flasher switch is locat-
ed on the upper part of the center console.
1Hazard warning flasher switchSwitching on the hazard warning
flasher
Press the hazard warning flasher
switch1.
All turn signal lamps are flashing.Switching off the hazard warning
flasher
Press the hazard warning flasher
switch1 again.
iWith the hazard warning flasher acti-
vated and the combination switch set
for either left or right turn, only the re-
spective turn signals will operate when
the ignition is switched on.
iIf the hazard warning flasher has been
activated automatically, press hazard
warning flasher switch1 once to
switch it off.
Page 152 of 491

151 Controls in detail
Instrument cluster
Coolant temperature indicator
During severe operating conditions, e.g.
stop-and-go traffic, the coolant tempera-
ture may rise close to 248°F (120°C).
The engine should not be operated with
the coolant temperature above 248°F
(120°C). Doing so may cause serious en-
gine damage which is not covered by the
Mercedes-Benz Limited Warranty.
Trip odometer
Make sure you are viewing the trip odome-
ter display (
page 153).
If it is not displayed, press the è or
ÿ repeatedly until the trip odome-
ter appears.
Press and hold the reset button on the
instrument cluster (
page 24) until
the trip odometer is reset.
Warning!
G
Driving when your engine is overheated
can cause some fluids which may have
leaked into the engine compartment to
catch fire. You could be seriously
burned.
Steam from an overheated engine can
cause serious burns and can occur just
by opening the hood. Stay away from
the engine if you see or hear steam com-
ing from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until the
engine has cooled down.
iExcessive coolant temperature trigger
a warning in the multifunction display
(page 356).
Page 153 of 491

152 Controls in detailInstrument clusterTachometer
The red marking on the tachometer de-
notes excessive engine speed.
To help protect the engine, the fuel supply
is interrupted if the engine is operated
within the red marking.
Outside temperature indicator
The outside temperature is displayed in
the instrument cluster (
page 24). For
information on how to select the unit of the
displayed temperature, i.e. degrees
Celsius (°C) or degrees Fahrenheit (°F),
see “Selecting temperature display mode”
(
page 165).The temperature sensor is located in the
front bumper area. Due to its location, the
sensor can be affected by road or engine
heat during idling or slow driving. This
means that the accuracy of the displayed
temperature can only be verified by com-
parison to a thermometer placed next to
the sensor, not by comparison to external
displays (e.g. bank signs etc.).
When moving the vehicle into colder ambi-
ent temperatures (e.g. when leaving your
garage), you will notice a delay before the
lower temperature is displayed.
A delay also occurs when ambient temper-
atures rise. This prevents inaccurate tem-
perature indications caused by heat
radiated from the engine during idling or
slow driving.
!Avoid driving at excessive engine
speeds, as it may result in serious en-
gine damage that is not covered by the
Mercedes-Benz Limited Warranty.
Warning!
G
The outside temperature indicator is not de-
signed to serve as an ice-warning device and
is therefore unsuitable for that purpose.
Indicated temperatures just above the freez-
ing point do not guarantee that the road sur-
face is free of ice. The road may still be icy,
especially in wooded areas or on bridges.
Page 154 of 491

153 Controls in detail
Control system
Control system
The control system is activated as soon as
the SmartKey in the starter switch is
turned to position1 or as soon as the
KEYLESS-GO start/stop button* is in
position1. The control system enables you
to:
call up information about your vehicle
change vehicle settings.
For example, you can use the control sys-
tem to find out when your vehicle is next
due for service, to set the language for
messages in the instrument cluster dis-
play, and much more.
The control system relays information to
the multifunction display.
Multifunction display
1Outside temperature
2Trip odometer
3Automatic transmission program mode
4Main odometer
5Current gear selector lever position
Above illustration shows the standard dis-
play.
For more information on menus displayed
in the multifunction display, see “Menus”
(page 156).
iThe displays for the audio systems (ra-
dio, CD player) will appear in English,
regardless of the language selected.
Warning!
G
A driver’s attention to the road and traffic
conditions must always be his / her primary
focus when driving.
For your safety and the safety of others, se-
lecting features through the multifunction
steering wheel should only be done by the
driver when traffic and road conditions per-
mit it to be done safely.
Bear in mind that at a speed of just 30 mph
(approximately 50 km / h), your vehicle is
covering a distance of 44 feet (approximate-
ly 14 m) every second.
Page 158 of 491
157 Controls in detail
Control system
Menus, submenus and functions
Menu1
Menu2
Menu3
Menu4
Menu5
Menu6
Menu7
Menu8
Standard dis-
play
AUDIO
NAV*
Distronic*
Vehicle status
message mem-
ory
Settings
Trip computer
Telephone
(page 158)
(page 158)
(page 160)
(page 160)
(page 161)
(page 162)
(page 178)
(page 179)
Commands/submenusDigital speed-
ometer
Select radio
station
Activate
route guid-
ance
Call up set-
tings
Call up vehicle
malfunction,
warning and sys-
tem status mes-
sages stored in
memory
Reset to facto-
ry settings
Fuel consumption
statistics after
start
Load phone
book
Call up mainte-
nance system
display
Operate CD
player
Instrument
cluster sub-
menu
Fuel consumption
statistics since
the last reset
Search for
name in
phone book
Check tire
pressure*
Time/Date
submenu
Call up range
Check engine
oil level
Lighting sub-
menuVehicle sub-
menuConvenience
submenuDynamic seat*
submenu
Page 161 of 491

160 Controls in detailControl systemNAV* menu
The
NAV
menu contains the functions
needed to operate your navigation system.
Press buttonè orÿ repeatedly
until you see the message
NAV
in the
display.
If the navigation system is switched off,
the message
NAV off
is shown in the
display.
If the navigation system is switched on,
the message
NAV Active
is shown in
the display.
Please refer to the COMAND manual for in-
structions on how to activate the route
guidance system.
Distronic* menu
Use the
Distronic
menu to display the
current settings for your Distronic system.
What information is shown in the display
depends on whether the Distronic system
is active or inactive.
Please refer to the “Driving systems” sec-
tion of this manual (page 232) for in-
structions on how to activate Distronic.
Press buttonè orÿ repeatedly
until you see one of the following two
pictures in the display.Distronic deactivated
When Distronic is deactivated, you will see
the standard display in the display.
1Vehicle ahead, if detected
2Actual distance to vehicle ahead
3Preset distance threshold to vehicle
ahead
4Your vehicle
5Symbol for activated distance warning
function
Page 162 of 491

161 Controls in detail
Control system
Distronic activated
When Distronic is activated,
Distronic
and the set speed are seen in the display.
1Distronic activated
Vehicle status message memory menu
Use the vehicle status message memory
menu to scan malfunction and warning
messages that may be stored in the sys-
tem. Such messages appear in the multi-
function display and are based on
conditions or system status the vehicle’s
system has recorded.
Press buttonè orÿ repeatedly
until the vehicle status message mem-
ory appears in the multifunction dis-
play.
No vehicle status messages
If no malfunctions have occurred, the mes-
sage in the display is:
NO MESSAGESVehicle status messages have been
recorded
If conditions have occurred causing status
messages to be recorded, the number of
messages appears in the multifunction dis-
play:
Warning!
G
Malfunction and warning messages are only
indicated for certain systems and are inten-
tionally not very detailed. The malfunction
and warning messages are simply a remind-
er with respect to the operation of certain
systems and do not replace the owner’s
and / or driver’s responsibility to maintain
the vehicle’s operating safety by having all
required maintenance and safety checks
performed on the vehicle and by bringing
the vehicle to an authorized Mercedes-Benz
Center to address the malfunction and
warning messages (
page 362).