Page 113 of 474

111 Controls in detail
Locking and unlocking
Trunk lid emergency release
The emergency release button is located 
on the inside of the trunk lid.
1Emergency release button
Briefly press emergency release 
button1.
The trunk unlocks and the trunk lid 
opens.
Illumination of the emergency release but-
ton:
The button will flash for 30 minutes af-
ter opening the trunk.
The button will flash for 60 minutes af-
ter closing the trunk.
Warning!
G
Only drive with the trunk closed as, among 
other dangers such as visibility blockage, 
exhaust fumes may enter the vehicle interi-
or.
iThe emergency release button unlocks 
and opens the trunk while the vehicle is 
standing still or in motion.iThe emergency release button does 
not open the trunk lid if the vehicle bat-
tery is discharged or disconnected.
iIf the emergency release button is 
pressed and the vehicle was centrally 
locked, the exterior lamps will flash and 
the alarm will sound as the trunk lid 
opens:
To cancel the alarm, do one of the fol-
lowing:
Insert the SmartKey in the starter 
switch.
Press button Œ or ‹ on the 
SmartKey.
In vehicles with KEYLESS-GO*:
Grasp the outside door handle.
The SmartKey with KEYLESS-GO 
must be within 3 ft. (1 m) of the ve-
hicle.
Press the KEYLESS-GO* start/stop 
button (
page 35).
The SmartKey with KEYLESS-GO 
must be inside the vehicle. 
     
        
        Page 114 of 474

112 Controls in detailLocking and unlockingPower closing assist for doors and trunk lid
It is not necessary to slam the door or 
trunk lid closed. A pneumatic power-as-
sisted mechanism draws doors and trunk 
lid closed quietly and automatically once 
door and trunk lid has been latched. When 
the pneumatic power-assisted mechanism 
has stopped, doors and/or trunk can be 
re-opened.Power closing assist for doors
Press the doors gently past the initial 
engage position into the lock.
The doors close automatically.
Power closing assist for trunk lid
Press the trunk lid gently into its lock.
The trunk closes automatically.
Automatic central locking
The doors and the trunk automatically lock 
when the ignition is switched on and the 
wheels are turning at vehicle speeds of ap-
proximately 9 mph (15 km/h) or more.
You can open a locked door from the in-
side. Open door only when conditions are 
safe to do so.
You can deactivate the automatic locking 
using the control system (
page 168).
Warning!
G
To prevent possible personal injury, always 
keep hands and fingers away from the door 
or trunk opening when closing a door or the 
trunk lid. Be especially careful when small 
children are around.
In case of danger, pull the inside or outside 
door handle, or press the trunk lid lock.
To prevent personal injury, never actuate 
the closing assist mechanism by tampering 
with the door or trunk lid latch.
Warning!
G
Only drive with the doors closed. Otherwise, 
one or more of the doors could open while 
the vehicle is in motion, putting you and/or 
others at risk.Warning!
G
Only drive with the trunk closed as, among 
other dangers such as visibility blockage, 
exhaust fumes may enter the vehicle interi-
or.
iThe doors unlock automatically after an 
accident if the force of the impact ex-
ceeds a preset threshold. The vehicle 
locks automatically when the ignition is 
switched on and the wheels are turning 
at vehicle speeds of approximately 
9 mph (15 km/h) or more. You could 
therefore lock yourself out when the 
vehicle
is pushed or towed
is on a test stand 
     
        
        Page 115 of 474

113 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 be-
fore starting to drive.
The fuel filler flap will not be locked or un-
locked with the central locking or unlock-
ing switch, respectively.The switches are located on the upper part 
of the front center console.
1Central locking switch
2Central unlocking switch
Locking
Press central locking switch1.
If the front passenger door is closed, 
the vehicle locks.
Unlocking
Press central unlocking switch2.
The vehicle unlocks.
Warning!
G
When leaving the vehicle, always remove the 
SmartKey or SmartKey with KEYLESS-GO* 
from the starter switch, take it with you, and 
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an 
unlocked vehicle. Unsupervised use of vehi-
cle equipment may cause 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 with the SmartKey or the with 
KEYLESS-GO*, it will not unlock using 
the central unlocking switch2.
If the vehicle was previously locked 
with the central locking switch1:
While in the global remote control 
mode, the vehicle is unlocked com-
pletely when a door is opened from 
the inside.
While in the selective remote con-
trol mode, only the door opened 
from inside is unlocked. 
     
        
        Page 139 of 474

137 Controls in detail
Lighting
Interior lighting
The controls are located in the overhead 
control panel.
1Left reading lamp on/off
2Rear interior lamps on/off
3Right reading lamp on/off
4Rocker switch for automatic 
control on/offAutomatic control
Activating
Press rocker switch 4 to the center 
position.
The interior lighting switches 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 automati-
cally following an adjustable time delay.
For more information, see “Setting interior 
lighting delayed shut-off” (
page 167).Deactivating
Press the ñ symbol on rocker 
switch 4.
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 trunk
Manual control
Front interior lighting
Press the ð symbol on rocker 
switch 4.
The front interior lighting switches on.
Press the ñ symbol on rocker 
switch 4 again.
The front interior lighting switches off. 
The automatic control function is acti-
vated.
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 
lighting switches off automatically after 
approximately five minutes. 
     
        
        Page 140 of 474
138 Controls in detailLightingRear interior lighting
Press switch2 on theò symbol.
The rear compartment lighting switch-
es on.
Press switch2 on theò symbol 
again.
The rear compartment lighting switch-
es off.Reading lamps in the front
The reading lamps are located in the over-
head control panel.
Press reading lamp switch1or3 to 
switch on the desired reading lamp.
Press reading lamp switch1or3 
again to switch off the respective read-
ing lamp.Reading lamps in the rear
The reading lamps are located in the roof 
lining for the rear seat passengers.
1Reading lamps on/off
2Reading lamps
Press reading lamp switch1 to switch 
on reading lamps2.
Press reading lamp switch1 to switch 
off reading lamps2.
iThe setting selected for the interior 
lighting is used for the trunk lighting as 
well. 
If the trunk lid remains open, the trunk 
lighting switches off automatically after 
approximately ten minutes. 
     
        
        Page 141 of 474

139 Controls in detail
Lighting
Courtesy lighting
For better orientation in the dark, courtesy 
lamps will illuminate the interior of your ve-
hicle as follows:
With parking lamps switched on:
the door handles
the driver and passenger footwells
With the SmartKey in the starter switch 
position1:
the door handles
the center console
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 switch off when the 
corresponding door is closed.
Trunk lighting
The trunk lighting switches on if the trunk 
lid is opened.
If you leave the trunk open for an extended 
period of time, the trunk lighting will switch 
off automatically after approximately 
ten minutes.
iIf you turn the SmartKey in the starter 
switch to position0 and switch off the 
exterior headlamps, the door handle 
lamps will remain lit for approximately 
five 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 
five minutes. 
     
        
        Page 154 of 474

152 Controls in detailControl systemOperational readiness of CD changer
If a CD changer has been installed in the 
system, it can be operated from the 
COMAND system key pad located in the 
center dashboard. A loaded magazine 
must be installed for CD playing.Loading/unloading the CD magazine
The CD changer is located behind the cov-
er on the left hand side in the trunk.
Remove the CD changer cover.
Slide the CD changer door to the right 
and press the eject button g.
The magazine is ejected.
1CD
2CD changer
3CD tray
4CD magazine
Remove the magazine and completely 
pull out the CD tray.
Place the CD in the recess of the tray, 
label side up.
Push the tray into the magazine in the 
direction shown by the arrow.
Push the magazine into the CD changer 
in the direction shown by the arrow and 
close the CD changer door.
Warning!
G
The CD changer is a Class 1 laser product. 
There is a danger of invisible laser radiation 
if the cover is opened or damaged.
Do not remove the cover. The CD changer 
does not contain any parts which can be ser-
viced by the user. For safety reasons, have 
any service work which may be necessary 
performed only by qualified personnel.
iCDs which have been inserted improp-
erly or are unreadable will not be 
played. 
     
        
        Page 164 of 474
162 Controls in detailControl systemThe table below shows what settings can 
be changed within the various menus. De-
tailed instructions on making individual 
settings can be found on the following pag-
es.INSTRUMENT CLUSTER
LIGHTING
VEHICLE
CONVENIENCE
Select temperature display 
mode
Set daytime running lamp mode 
(USA only)
Set automatic locking
Set key-dependency
Select multifunction display 
mode
Set locator lighting
Limiting opening height of trunk 
lid*
Activate easy-entry/exit feature
Select language
Exterior lamps delayed shut-off
Set parking position for exterior 
rear view mirror
Select tire inflation pressure 
unit
Interior lighting delayed shut-off
Set fold-in function for exterior 
rear view mirrorsAdjusting the drive-dynamic 
seat