Page 125 of 521

124 Controls in detailLocking and unlockingIf the trunk lid comes into contact with an 
object while closing (e.g. luggage that has 
been piled too high), the closing procedure 
is stopped and the trunk reopens slightly.Closing the trunk from the outside 
(vehicles with KEYLESS-GO*)
In vehicles with trunk opening/closing sys-
tem* you can close the trunk separately 
from the outside using the trunk closing 
switch.
1Trunk closing switch
Make sure you have the SmartKey with 
KEYLESS-GO with you.
Press trunk closing switch1 briefly.
The trunk closes.
Warning!
G
Monitor the closing procedure carefully to 
make sure no one is in danger of being in-
jured. To prevent possible personal injury, 
always keep hands and fingers away from 
the trunk opening when closing the trunk. 
Be especially careful when small children 
are around. To stop the closing procedure, 
do one of the following: 
press the trunk closing switch1 
press button Š on the SmartKey 
(page 106)
press the remote trunk switch (on the 
driver’s door) (
page 120)
Even with the SmartKey removed from the 
starter switch, the trunk closing switch can 
be operated. Therefore, do not leave chil-
dren unattended in the vehicle, or
 with access to an unlocked vehicle. Unsu-
pervised use of vehicle equipment may 
cause an accident and/or serious personal 
injury.Warning!
G
Only drive with the trunk closed as, among 
other dangers such as blocked visibility, ex-
haust fumes may enter the vehicle interior.iDo not place the SmartKey in the open 
trunk. You may lock yourself out.iIf the vehicle was previously centrally 
locked, the trunk will lock automatical-
ly after closing it (
page 121).
To confirm locking all turn signal lamps 
flash three times.
iYou can also close the trunk by hand.
 
     
        
        Page 126 of 521

125 Controls in detail
Locking and unlocking
If the trunk lid comes into contact with an 
object while closing (e.g. luggage that has 
been piled too high), the closing procedure 
is stopped and the trunk reopens slightly.
iTo prevent a possible inadvertent lock-
out, the trunk will open automatically if 
a SmartKey with KEYLESS-GO is recog-
nized inside the vehicle or in the trunk.
Warning!
G
Monitor the closing procedure carefully to 
make sure no one is in danger of being in-
jured. To prevent possible personal injury, 
always keep hands and fingers away from 
the trunk opening when closing the trunk. 
Be especially careful when small children 
are around. To stop the closing procedure, 
do one of the following: 
press KEYLESS-GO locking / closing 
switch1 (
page 126)
press the trunk closing switch1
press button Š on the SmartKey with 
KEYLESS-GO (
page 111)
press the remote trunk switch (on the 
driver’s door) (
page 120)
Even with the SmartKey with KEYLESS-GO 
removed from the vehicle, the trunk closing 
switch can be operated. Therefore, do not 
leave children unattended in the vehicle, or 
with access to an unlocked vehicle. Unsu-
pervised use of vehicle equipment may 
cause an accident and/or serious personal 
injury.Warning!
G
Only drive with the trunk closed as, among 
other dangers such as blocked visibility, ex-
haust fumes may enter the vehicle interior.iIf the vehicle was previously centrally 
locked, the trunk will lock automatical-
ly after closing it (
page 121).
To confirm locking all turn signal lamps 
flash three times. 
     
        
        Page 127 of 521

126 Controls in detailLocking and unlockingClosing the trunk and locking the vehi-
cle from the outside (vehicles with 
KEYLESS-GO*)
In vehicles with trunk opening/closing sys-
tem* and KEYLESS-GO, you can close the 
trunk and lock the vehicle simultaneously 
from the outside using the KEYLESS-GO 
locking/closing switch.
1KEYLESS-GO locking/closing switch
You can close the trunk and lock the vehi-
cle simultaneously.
Make sure you have the SmartKey with 
KEYLESS-GO with you.
Press switch1 briefly.
The trunk closes.
All turn signal lamps flash three 
times.
The locking knobs in the doors 
move down.
The anti-theft alarm system is 
armed.
If the trunk lid comes into contact with an 
object while closing (e.g. luggage that has 
been piled too high), the closing procedure 
is stopped and the trunk reopens slightly.
iYou can also close the trunk by hand.iTo prevent a possible inadvertent lock-
out, the trunk will open automatically if 
a SmartKey with KEYLESS-GO is recog-
nized inside the vehicle or in the trunk.
Warning!
G
Monitor the closing procedure carefully to 
make sure no one is in danger of being in-
jured. To prevent possible personal injury, 
always keep hands and fingers away from 
the trunk opening when closing the trunk. 
Be especially careful when small children 
are around. To stop the closing procedure, 
do one of the following: 
press KEYLESS-GO locking/closing 
switch1 (
page 126)
press trunk closing switch (
page 124)
press button Š on the SmartKey with 
KEYLESS-GO
press the remote trunk switch (on the 
driver’s door) (
page 120) 
     
        
        Page 131 of 521
130 Controls in detailLocking and unlockingThe switch is located in the center console.Central locking switch1Locking
2UnlockingLocking
Press lower half 1 of the central lock-
ing switch.
If all doors are closed, the vehicle 
locks.
Unlocking
Press upper half2 of the central lock-
ing switch.
The vehicle unlocks.
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 using the SmartKey, it will not 
unlock using the central locking switch.
If the vehicle was previously locked 
with the central locking switch.
while in the selective remote con-
trol mode, only the front door 
opened from the inside is unlocked.
while in the global remote control 
mode, the vehicle is unlocked com-
pletely when a front door is opened 
from the inside. 
     
        
        Page 217 of 521
216 Controls in detail4-zone automatic climate control*USA only1
Air distribution, left
2
Front defroster
3
Temperature rocker switch, left
4
Display
5
Temperature rocker switch, right
6
Rear window defroster
7
Air distribution, right
8
Air distribution and air volume, right 
(automatic, manual)
9
AC cooling on/off
a
Rear air-conditioning remote control
b
Increase air volume
c
Climate control on/off
d
Decrease air volume
e
Air recirculation 
f
Air distribution and air volume, left 
(automatic, manual) 
     
        
        Page 218 of 521
217 Controls in detail
4-zone automatic climate control*
Canada only1
Air distribution, left
2
Front defroster
3
Temperature rocker switch, left
4
Display
5
Temperature rocker switch, right
6
Rear window defroster
7
Air distribution, right
8
Air distribution and air volume, right 
(automatic, manual)
9
AC cooling on/off
a
Rear air-conditioning remote control
b
Increase air volume
c
Climate control on/off
d
Decrease air volume
e
Residual heat/ventilation
f
Air recirculation 
g
Air distribution and air volume, left 
(automatic, manual) 
     
        
        Page 287 of 521

286 Controls in detailUseful featuresTele Aid
Shortly after the completion of your 
Tele Aid acquaintance call, you will receive 
a user ID and password. By visiting 
www.mbusa.com and selecting “Tele Aid” 
(USA only), you will have access to account 
information, remote door unlock and 
more.The Tele Aid system
(Tele
matic A
larm I
dentification on D
e-
mand)
The Tele Aid system consists of three 
types of response:
automatic and manual emergency
Roadside Assistance and
information
The Tele Aid system is operational provid-
ing that the vehicle’s battery is charged, 
properly connected, not damaged and cel-
lular and GPS coverage is available.
The speaker volume of a Tele Aid call can 
be adjusted when using the volume control 
on the multifunction steering wheel. To 
raise, press buttonæ and to lower, 
press buttonç or use the volume knob 
on your COMAND headunit.
To activate, press the SOS button, the 
Roadside Assistance button• or 
the Information button¡, depend-
ing on the type of response required.System self-check
Initially, after switching on the ignition, 
malfunctions are detected and indicated 
(the indicator lamps in the SOS button, the 
Roadside Assistance button• and the 
Information button¡ stay on longer 
!The initial activation of the Tele Aid sys-
tem may only be performed by com-
pleting the subscriber agreement and 
placing an acquaintance call using 
button¡. Failure to complete either 
of these steps will result in a system 
that is not activated.
If you have any questions regarding ac-
tivation, please call the Response Cen-
ter at 1-800-756-9018 (in the USA) or 
1-888-923-8367 (in Canada).
iThe SOS button is located above the in-
terior rear view mirror.
The Roadside Assistance button• 
and the Information button¡ are 
located below the center armrest cov-
er.iThe Tele Aid system utilizes the cellular 
network for communication and the 
GPS (G
lobal P
ositioning S
ystem) satel-
lites for vehicle location. If either of 
these signals are unavailable, the 
Tele Aid system may not function and if 
this occurs, assistance must be sum-
moned by other means. 
     
        
        Page 293 of 521

292 Controls in detailUseful features
Remote door unlock
In case you have locked your vehicle unin-
tentionally (e.g. SmartKey inside vehicle), 
and the reserve SmartKey is not handy:
Contact the Mercedes-Benz Response 
Center at 1-800-756-9018 (in the USA) 
or 1-888-923-8367 (in Canada).
You will be asked to provide your pass-
word which you provided when you 
completed the subscriber agreement.
Then return to your vehicle and pull the 
trunk recessed handle for a minimum 
of 20 seconds until the SOS button is 
flashing.
The message 
Call connected
 appears 
in the multifunction display.
As an alternative, you may unlock the vehi-
cle via Internet using the ID and password 
sent to you shortly after the completion of 
your acquaintance call.
The Response Center will then unlock your 
vehicle with the remote door unlocking 
feature.
!If the indicator lamp continues to flash 
or the system does not reset, contact 
the Response Center at 
1-800-756-9018 (in the USA) or 
1-888-923-8367 (in Canada), or 
Mercedes-Benz Customer Assistance 
at 1-800-FOR-MERCedes 
(1-800-367-6372) in the USA or Cus-
tomer Service at 1-800-387-0100 in 
Canada.
iWhen a Tele Aid call has been initiated, 
the COMAND system audio is muted 
and the selected mode (radio or CD) 
pauses. The optional cellular phone (if 
installed) switches off. If you must use 
this phone, the vehicle must be parked. 
Disconnect the coiled cord and place 
the call. The COMAND navigation* 
system (if engaged) will continue to 
run. The multifunction display in the in-
strument cluster is available for use, 
and spoken commands are only avail-
able by pressing the RPT button on the 
COMAND unit. A pop-up window will 
appear in the COMAND display to indi-
cate that a Tele Aid call is in progress.