Page 126 of 474

125 Controls in detail
Lighting
Switching on hazard warning flasher
Press hazard warning flasher
switch1.
All turn signals are flashing.
Switching off hazard warning flasher
Press hazard warning flasher switch1
again.
Interior lighting
The controls are located in the overhead
control panel.
1Rear interior lights on/off
2Right front reading lamp on/off
3Rocker switch for automatic control
system
4Left front reading lamp on/offAutomatic control
Activating
Press rocker switch3 to center
position.
Interior lamps are switched on in
darkness, when you
unlock the vehicle
open a door
remove the SmartKey from the
starter switch
The interior lamps are switched off after a
preset time, see “Set interior lighting de-
layed shut-off” (
page 152).
iWith the hazard warning flasher
activated and the combination switch
set for either left or right turn, only the
respective turn signals will operate
when the SmartKey is in the starter
switch position1 or 2.iIf the hazard warning flasher has been
activated automatically, press hazard
warning flasher switch1 once to
switch it off.
iLeaving an interior light switch in the
ON position for extended periods of
time with the engine turned off could
result in a discharged battery.
iIf the door remains open, the interior
lamps switch off automatically after
approximately 5 minutes, when the
SmartKey is removed or in starter
switch position0.
Page 127 of 474

126 Controls in detailLightingDeactivating
Press the= symbol on rocker
switch3.
The interior lighting remains switched
off, even when you
unlock the vehicle
open a door
remove the SmartKey from the
starter switch
Manual control
Switching all front interior lights on and
off
Press theW symbol on rocker
switch3.
The front interior lights come on.
Press rocker switch3 to center
position to activate the automatic
control.Switching rear interior lights on and off
Press buttonV.
The lights in the rear passenger
compartment come on.
Press buttonV again.
The lights in the rear passenger
compartment go out.
Switching front reading lamp on and off
Press right or left buttonX.
The right reading lamp comes on.
Press right or left buttonX again.
The right reading lamp goes out.
Door entry lamps
The appropriate door entry lamp switches
on if a door is opened in darkness and if
the interior lighting is switched to auto-
matic function.
The entry lamp switches off automatically
when the door is closed.Trunk lamp
The trunk lamp switches on if the trunk is
opened.
If you leave the trunk open for an extended
period of time, the trunk lamp will switch
off automatically after approximately
10 minutes.
iIf you turn the SmartKey in the starter
switch to position0 and switch off the
exterior headlamps, the door entry
lamps will remain lit for approximately
5minutes.
Page 131 of 474

130 Controls in detailControl systemThe control system is activated as soon as
the SmartKey in the starter switch is
turned to position1. The control system
enables you to
call up information about your vehicle
change vehicle settings
For example, you can use the control
system to find out when your vehicle is
next due for service, to set the language
for messages in the instrument cluster
display, and much more.
The control system relays information to
the multifunction display.
Multifunction display
1Trip odometer
2Main odometer
3Current program mode (automatic
transmission*)
4Current gear selector lever
position/gear range (automatic trans-
mission*)
5Digital clock
6Status indicator (outside tempera-
ture/digital speedometer)
iThe displays for the audio systems
(radio, 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,
selecting features through the multifunction
steering wheel should only be done by the
driver when traffic and road conditions
permit 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
(approximately 14 m) every second.
Page 132 of 474

131 Controls in detail
Control system
Multifunction steering wheel
The displays in the multifunction display
and the settings in the control system are
controlled by the buttons on the multifunc-
tion steering wheel.Pressing any of the buttons on the multi-
function steering wheel will alter what is
shown in the multifunction display.
The information available in the multifunc-
tion display is arranged in menus, each
containing a number of functions or sub-
menus.
The individual functions are then found
within the relevant menu (radio or CD op-
erations under
AUDIO
, for example). These
functions serve to call up relevant informa-
tion or to customize the settings for your
vehicle.
1
Multifunction displayOperating the control system
2
Selecting the submenu or setting
the volume:
Press buttonæup/to increaseçdown/to decrease
3
Telephone*:
Press buttonsto take a calltto end a call
4
Menu systems:
Press buttonèfor next menuÿfor previous menu
5
Moving within a menu:
Press buttonjfor next displaykfor previous display
iC 230 Sport and C 350 Sport:
Steering wheel in these vehicles will
vary from steering wheel shown.
However, multifunction steering wheel
symbols and feature description apply
to Sport models as well.
Page 135 of 474

134 Controls in detailControl systemMenus, submenus and functions
Menu1
Menu2
Menu3
Menu4
Menu5
Menu6
Menu7
Standard
display
AUDIO
NAV*
Vehicle status
message memory
Settings
Trip computer
Telephone*
(page 135)
(page 136)
(page 138)
(page 138)
(page 140)
(page 155)
(page 157)
Commands/submenusRun Flat
Indicator*
(Canada only)
Select radio
station
Show route guid-
ance instructions,
current direction
traveled
Call up vehicle malfunc-
tion, warning and sys-
tem status messages
stored in memory
1
1The vehicle status message memory menu is only displayed if there is a message stored.
Reset to
factory
settings
Fuel consumption
statistics after
start
Load phone
book
Digital speed-
ometer or out-
side temperature
Select satellite
radio station*
(USA only)
Instrument
cluster sub-
menu
Fuel consumption
statistics since
the last reset
Search for
name in
phone book
Call up main-
tenance service
display
Operate
CD player*
Time/Date
submenu
Call up range
Lighting
submenuVehicle
submenuConvenience
submenu
Page 137 of 474
136 Controls in detailControl systemAUDIO menu
The functions in the
AUDIO
menu operate
the audio equipment which you currently
have turned on.
If no audio equipment is currently turned
on, the message
Audio off
appears in the
multifunction display.
The following functions are available:Select radio station
Turn on the radio (
page 202).
Vehicles with COMAND*:
Refer to separate operating
instructions.
Press buttonè orÿ repeatedly
until the currently tuned station
appears in the multifunction display.
1Waveband setting
2Station frequency
Press buttonk orj repeatedly
until the desired station is found.
Function
Page
Select radio station
136
Select satellite radio station*
(USA only)
137
Operate CD player*
137
iYou can only store new stations using
the corresponding feature on the radio
(page 210).
Vehicles with COMAND*:
Refer to separate operating
instructions.
You can also operate the radio in the
usual manner.
Page 138 of 474
137 Controls in detail
Control system
Select satellite radio station*
(USA only)
The satellite radio is treated as a radio
application.
Select satellite radio with the
corresponding soft key (SAT) in the
radio menu.
1SAT mode and preset number
2Channel name or number
Press buttonk orj repeatedly
until the desired channel is found.Operate the CD player*
Turn on the radio and select the
CD player or the CD Changer
(page 216).
Vehicles with COMAND*:
Refer to separate operating
instructions.
Press buttonè orÿ repeatedly
until the settings for the CD currently
being played appear in the
multifunction display.
1Current CD (for CD changer*)
2Current track
iFor more information on satellite radio
operation, see “Introduction to satellite
radio* (USA only)” (
page 211).
Vehicles with COMAND*:
Refer to separate operating
instructions.
Page 141 of 474

140 Controls in detailControl system
Press buttonk orj.
The stored messages will now be
displayed in the order in which they
have occurred. For malfunction and
warning messages, see “Vehicle status
messages in the multifunction display”
(page 358).
Should the vehicle’s system record any
conditions while driving, the number of
messages will reappear in the multifunc-
tion display when the SmartKey in the
starter switch is turned to position0 or
removed from the starter switch.
Settings menu
In the
Settings
menu there are two
functions:
The function
Reset to factory
settings
, with which you can reset all
the settings to the original factory
settings.
A collection of submenus with which
you can make individual settings for
your vehicle.
Press buttonè orÿ repeatedly
until the
Settings
menu appears in the
multifunction display.Resetting all settings
You can reset all the functions of all
submenus to the factory settings.
Press the reset button in the
instrument cluster (
page 127) for
approximately 3 seconds.
The request to press the reset button
once more to confirm appears in the
multifunction display.
Press the reset button once more.
The functions of all the submenus will
reset to factory settings.
iThe vehicle status message memory
will be cleared when you turn the
SmartKey in the starter switch to
position1 or2. You will then only see
high-priority messages in the multi-
function display (
page 358).