Page 101 of 441

100 Controls in detail
Locking and unlocking
Locking and unlocking from the inside
You can lock or unlock the doors and the 
trunk from inside using the central locking 
or unlocking switch. This can be useful, for 
example, if you want to lock the vehicle 
before starting to drive.
You cannot lock or unlock the fuel filler flap 
with the central locking or unlocking 
switch.The switches are located in the center 
console.
1Central locking switch
2Central unlocking switchLocking
Press central locking switch1.
If all doors are closed, the vehicle 
locks.
Unlocking
Press central unlocking switch2.
The vehicle unlocks.
Warning!G
When leaving the vehicle, always remove the 
SmartKey from the starter switch, take it 
with you, and lock the vehicle. Do not leave 
children unattended in the vehicle, or with 
access to an unlocked vehicle. A child’s 
unsupervised access to a vehicle could 
result in an accident and/or serious 
personal injury.
iYou can open a locked door from the inside. 
Open door only when conditions are safe to do 
so.
If the vehicle was previously centrally locked us-
ing the SmartKey, it will not unlock using the cen-
tral unlocking switch2.
If the vehicle was previously locked with the cen-
tral locking switch1
while in the selective remote control mode, 
only the door opened from the inside is un-
locked.
while in the global remote control mode, the 
complete vehicle is unlocked when a door is 
opened from the inside. 
     
        
        Page 111 of 441

110 Controls in detail
Lighting
Manual headlamp mode
The low beam headlamps and the parking 
lamps can be switched on and off with the 
exterior lamp switch.
Turn the exterior lamp switch to 
positionB.
Automatic headlamp mode
The following lamps switch on and off 
automatically depending on the brightness 
of the ambient light:
Low beam headlamps
Tail and parking lamps
License plate lamps
Side marker lamps
Turn the exterior lamp switch to 
positionU.
With the SmartKey in starter switch 
position1, only the parking lamps and 
the side marker 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.
Warning!G
If the exterior lamp switch is set toU,
the headlamps may switch off 
unexpectedly when the system senses 
bright ambient light, for example light 
from oncoming traffic.
the headlamps will not be automatically 
switched on under foggy conditions. 
To minimize risk to you and to others, 
activate headlamps by turning exterior lamp 
switch toB when driving or when traffic 
and / or ambient lighting conditions require 
you to do so.
In low ambient lighting conditions, only 
switch from positionU toB with the 
vehicle at a standstill in a safe location. 
Switching fromU toB will briefly 
switch off the headlamps. Doing so while 
driving in low ambient lighting conditions 
may result in an accident.
The automatic headlamp feature is only an 
aid to the driver. The driver is responsible for 
the operation of the vehicle’s lights at all 
times.
iUSA only:
With the automatic headlamp mode activated 
you can switch on the high beam headlamps in 
low ambient lighting conditions. 
     
        
        Page 116 of 441

115 Controls in detail
Lighting
Driving in reverse
Switching on corner-illuminating front 
fog lamps
Place the gear selector lever (manual 
transmission: gearshift lever) in 
positionR.
The corner-illuminating front fog lamp 
opposite to your steering direction 
comes on.
Switching off corner-illuminating front 
fog lamps
Place the gear selector lever (manual 
transmission: gearshift lever) out of 
positionR.
The respective front fog lamp goes out.
Hazard warning flasher
The hazard warning flasher can be 
switched on at all times, even with the 
SmartKey removed from the starter 
switch.
The hazard warning flasher switches on 
automatically when an air bag deploys.
The hazard warning flasher switch is 
located on the center console.
1Hazard warning flasher switchSwitching on hazard warning flasher
Press hazard warning flasher 
switch1.
All turn signal lamps are flashing.
Switching off hazard warning flasher
Press hazard warning flasher switch1 
again.
iWith the hazard warning flasher activated 
and the combination switch set for either left or 
right turn, only the respective left or right turn 
signals will operate when the ignition is switched 
on (
page 32).
iIf the hazard warning flasher has been 
activated automatically, press hazard warning 
flasher switch1 once to switch it off. 
     
        
        Page 117 of 441

116 Controls in detail
Lighting
Interior lighting
The controls are located in the overhead 
control panel.
1Rear interior lighting on/off
2Right front reading lamp on/off
3Rocker switch for automatic control 
system
4Left front reading lamp on/offDeactivating automatic control
Press the= symbol on rocker 
switch3.
The interior lighting remains switched 
off in darkness, even when you
unlock the vehicle
remove the SmartKey from the 
starter switch
open a door 
open the trunkActivating automatic control
Press rocker switch3 to center 
position.
The interior lighting switch on in 
darkness, when you
unlock the vehicle
remove the SmartKey from the 
starter switch
open a door
open the trunk
The interior lighting switches off after ap-
proximately 10 seconds, see “Setting inte-
rior lighting delayed shut-off” 
(
page 142).
!An interior lamp switched on manually does 
not go out automatically.
Leaving an interior lamp switch in the ON posi-
tion for extended periods of time with the engine 
turned off could result in a discharged battery.
iThe interior lighting is factory-set to auto-
matic mode.
iIf a door remains open, the interior lighting 
switches off automatically after approximately 
5minutes. 
     
        
        Page 118 of 441

117 Controls in detail
Lighting
Manual control
Switching front interior lighting on and 
off
Press the W symbol on rocker 
switch3.
The front interior lighting comes on.
Press rocker switch3 to center 
position to activate the automatic 
control.
Switching rear interior lighting on and 
off
Press button V.
The lighting in the rear passenger 
compartment comes on.
Press button V again.
The lighting in the rear passenger 
compartment goes out.Switching front reading lamps on and off
Press the left or right button X to 
switch on the desired front reading 
lamp.
Press the left or right button X 
again to switch off the respective front 
reading lamp.
Door entry lamps
For better orientation in the dark, the cor-
responding door entry lamps will switch on 
in darkness when you open a door and the 
automatic control is activated.
The door entry lamps will switch off when 
the corresponding door is closed.
Trunk lamp
The trunk lamp switches on if the trunk is 
opened.
If the trunk lid remains open, the trunk 
lamp switches 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 5 minutes. 
     
        
        Page 122 of 441

121 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. 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 transmission*)
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 128 of 441

127 Controls in detail
Control system
AUDIO 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:Selecting radio station
Turn on the radio (page 190) and se-
lect radio. Vehicles with COMAND*: 
Refer to separate operating instruc-
tions.
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 or the desired 
stored station is found.The station search depends on the se-
lected setting in the 
Vehicle submenu 
of the control system (
page 142).
Pressing buttonk orj will ei-
ther start a frequency scan or select 
the next stored radio station.
Selecting 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.
FunctionPage
Selecting radio station127
Selecting satellite radio station* 
(USA only)127
Operating CD player*128
iYou can only store new stations using the 
corresponding feature on the radio 
(
page 196). 
Vehicles with COMAND*: 
Refer to separate operating instructions.
You can also operate the radio in the usual 
manner.
 
     
        
        Page 129 of 441

128 Controls in detail
Control system
1SAT mode and preset number
2Channel name or number
Press buttonk orj repeatedly 
until the desired channel is found.Operating the CD player*
Selecting CD track
Turn on the radio and select CD or 
CD changer* (
page 205). 
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 (with additional number 
from 1 to 6 when running from 
CD changer*)
2Current track
Press buttonk orj repeatedly 
until the desired track is selected.
For more information on CD operation, see 
“CD mode” (
page 201) and for the 
CD changer*, see (
page 204).
iFor more information on satellite radio oper-
ation, see “Introduction to satellite radio* 
(USA only)” (
page 197). 
Vehicles with COMAND*: 
Refer to separate operating instructions.
iThe COMAND* system and the 
CD changer* can play audio CDs as well as CDs 
with MP3 files.
iTo select a CD from the CD changer* maga-
zine, press a number on the audio system or the 
COMAND* system key pad located in the center 
console.