Page 107 of 435

106 Controls in detailLocking and unlockingPower closing assist for doors and trunk lid
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.For more information on towing the vehi-
cle, see “Towing the vehicle” (
page 371).
You can deactivate the automatic locking 
using the control system (
page 159).
iIt is not necessary to slam the door or 
trunk lid closed. A pneumatic pow-
er-assisted mechanism draws doors 
and trunk lid closed quietly and auto-
matically once door and trunk lid has 
been latched. When the pneumatic 
power-assisted mechanism has 
stopped, doors and/or trunk can be 
re-opened.
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.
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 108 of 435

107 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 in the center con-
sole.
Central locking/unlocking switches1Locking
2Unlocking
Locking
Press central locking switch1.
If all door’s 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 the 
SmartKey with KEYLESS-GO* with you and 
lock your vehicle. Do not leave children un-
attended 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 
SmartKey with KEYLESS-GO* it will not 
unlock using the central locking switch.
If the vehicle was previously locked 
with the central locking switch:
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 144 of 435

143 Controls in detail
Control system
Operational 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 3.
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 154 of 435
153 Controls in detail
Control system
The 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
Interior lighting delayed shut-off
Set fold-in function for exterior 
rear view mirrorsAdjusting the drive-dynamic 
seat (driver’s side) 
         
        
        
     
        
        Page 160 of 435

159 Controls in detail
Control system
Vehicle submenu
Access the 
VEHICLE
 submenu via the 
SET-
INGS
 menu. Use the 
VEHICLE
 submenu to 
make general vehicle settings. The follow-
ing functions are available:Setting automatic locking
Use this function to activate or deactivate 
the automatic central locking. With the au-
tomatic central locking system activated, 
the vehicle is centrally locked at vehicle 
speeds of approximately 9 mph 
(15 km/h).
Press buttonæ orç to move 
the selection marker to the 
VEHICLE
 
submenu.
Press buttonj ork repeatedly 
until you see this message in the dis-
play: 
AUTOMATIC DOOR LOCK
.
The selection marker is on the current 
setting.
Pressæ orç to switch AUTOMATIC DOOR LOCK
 ON or 
OFF
.Limiting opening height of trunk lid*
This function is available on vehicles with 
the trunk lid opening/closing system*. 
Use this function to activate or deactivate 
the limiting opening height of trunk lid.
Move the selection marker with 
theæ orç button to 
VEHICLE
 
submenu.
Press buttonj ork repeatedly 
until you see this message in the dis-
play:OPENING LIMITER 
TRUNK LIDThe selection marker is on the current 
setting.
Press buttonæ orç to switch 
the opening limiter for trunk lid
 ON
 or 
OFF
.
Function
Page
Setting automatic locking
159
Limiting opening height of trunk 
lid*
159 
         
        
        
     
        
        Page 230 of 435
229 Controls in detail
Loading
Loading
Roof rack* Preparing roof rack installation
Open trim at the trim strips in the roof. 
Secure the roof rack according to man-
ufacturer’s instructions for installation. 
Loading instructions
The total load weight including vehicle oc-
cupants and luggage/cargo should not ex-
ceed the vehicle capacity weight indicated 
on the corresponding label located on the 
driver’s door pillar.
Warning!
G
Use only roof racks approved by Mer-
cedes-Benz for your vehicle model to avoid 
damage to the vehicle. Follow manufactur-
er’s installation instructions.
!Load the roof rack in such a way that 
the vehicle cannot be damaged while 
driving.
Make sure
you can fully raise the 
sliding/pop-up roof
you can fully open the trunk 
         
        
        
     
        
        Page 231 of 435
230 Controls in detailLoading
Cargo tie-down hooks
Six hooks are located in the trunk.
Carefully secure cargo by applying 
even load on all hooks with rope of suf-
ficient strength to hold down the cargo.
Warning!
G
Always fasten items being carried as secure-
ly as possible.
In an accident, during hard braking or sud-
den maneuvers, loose items will be thrown 
around inside the vehicle and can cause in-
jury to vehicle occupants unless the items 
are securely fastened in the vehicle.
To help avoid personal injury during a colli-
sion or sudden maneuver, exercise care 
when transporting cargo. Put luggage or car-
go in the trunk if possible. Do not pile lug-
gage or cargo higher than the seat backs. 
Do not place anything on the rear-window 
shelf.
Never drive vehicle with trunk open. Deadly 
carbon monoxide (CO) gases may enter ve-
hicle interior resulting in unconsciousness 
and death. 
         
        
        
     
        
        Page 232 of 435
231 Controls in detail
Useful features
Useful features
Storage compartments Glove box
1Unlocked
2Locked 
3Glove box lid release
Locking the glove box
Insert mechanical key (
page 348) 
into the glove box lock.
Turn the mechanical key to 
position2.Unlocking the glove box
Insert mechanical key (
page 348) 
into the glove box lock.
Turn the mechanical key to 
position1.
Opening the glove box
Press glove box lid release3.
The glove box lid opens downward.
Closing the glove box
Push lid up to close.
Warning!
G
To help avoid personal injury during a colli-
sion or sudden maneuver, exercise care 
when stowing objects in the vehicle. Put lug-
gage or cargo in the trunk if possible. Do not 
pile luggage or cargo higher than the seat 
backs.
Luggage nets cannot secure hard or heavy 
objects.
Keep compartment lids closed. This will help 
to prevent stored objects from being thrown 
about and injuring vehicle occupants during 
an accident.