Page 103 of 506

101 Controls in detail
Locking and unlocking
Checking the batteries
Press button‹ orŒ.
Battery check lamp5 comes on brief-
ly to indicate that the SmartKey batter-
ies are in order.Unlocking and opening the trunk lid
You can unlock and open the trunk sepa-
rately.
A minimum height clearance of 5.90 ft 
(1.80 m) is required to open the trunk lid.
Press and hold buttonŠ until trunk 
unlocks and begins to open.
The trunk can also be opened from its in-
side in an emergency, see “Trunk lid emer-
gency release” (
page 117).
!If you can no longer lock or unlock the 
vehicle with the SmartKey, then either 
the batteries in the SmartKey are dis-
charged, the SmartKey is malfunction-
ing or the vehicle battery is drained.
Check the batteries in the 
SmartKey (
page 101) and re-
place them if necessary 
(
page 415).
Use the mechanical key to unlock 
the driver’s door (
page 410).
Have the vehicle batteries and their 
connections checked.
Use the mechanical key to lock the 
driver’s door (
page 410).
If the SmartKey is malfunctioning, con-
tact an authorized Mercedes-Benz 
Center.
iIf battery check lamp5 does not 
come on briefly during check, then the 
SmartKey batteries are discharged.
Replace the batteries (
page 415).
You can obtain the required batteries 
at any authorized Mercedes-Benz 
Center.
iIf the batteries are checked within sig-
nal range of the vehicle, pressing the 
button‹ orŒ will lock or unlock 
the vehicle accordingly.
!The trunk lid swings open upwards au-
tomatically. Always make sure there is 
sufficient overhead clearance.
Vehicles with trunk lid opening/closing 
system*: to stop the opening proce-
dure, press buttonŠ on the 
SmartKey. The trunk lid stops moving. 
     
        
        Page 110 of 506

108 Controls in detailLocking and unlockingUnlocking and opening the trunk lid
You can unlock and open the trunk lid sep-
arately.
A minimum height clearance of 5.90 ft 
(1.80 m) is required to open the trunk lid.
The handle is located in the rear license 
plate recess.
Pull on the handle
or
Press and hold buttonŠ until the 
trunk lid unlocks and opens.Loss of the SmartKey with KEYLESS-GO
If you lose your SmartKey with 
KEYLESS-GO, you should do the following:
Have the SmartKey with KEYLESS-GO 
deactivated by an authorized 
Mercedes-Benz Center.
Report the loss immediately to your car 
insurance company.
Have the mechanical lock replaced if 
necessary.
Your authorized Mercedes-Benz Center 
will be glad to supply you with a replace-
ment. 
!The trunk lid swings open upwards au-
tomatically. Always make sure there is 
sufficient overhead clearance.
Vehicles with trunk lid opening/closing 
system*: to stop the opening proce-
dure, press buttonŠ on the 
SmartKey with KEYLESS-GO. The trunk 
lid stops moving.iIf the vehicle was previously centrally 
locked with KEYLESS-GO, the trunk will 
lock automatically after closing it. The 
turn signals flash three times to con-
firm locking. 
     
        
        Page 112 of 506

110 Controls in detailLocking and unlockingOpening the trunk
Opening the trunk from the outside
A minimum height clearance of 5.90 ft 
(1.80 m) is required to open the trunk lid.
The handle is located above the rear li-
cense plate recess.
In vehicles without KEYLESS-GO*: The ve-
hicle must be unlocked.
Pull on the handle.
The trunk lid opens.Opening the trunk from the inside
You can open the trunk from the inside if 
the vehicle is stationary. 
A minimum height clearance of 5.90 ft 
(1.80 m) is required to open the trunk lid.
The switch is located on the driver’s door.
1Remote trunk lid switch with indicator 
lamp
!The trunk lid swings open upwards au-
tomatically. Always make sure there is 
sufficient overhead clearance.iThe trunk can also be opened using the 
buttonŠ on the SmartKey or 
SmartKey with KEYLESS-GO* or from 
its inside in an emergency, see “Trunk 
lid emergency release” (
page 117).
iIf the vehicle was previously centrally 
locked, the trunk will lock automatical-
ly after closing it. The turn signals flash 
three times to confirm locking. 
     
        
        Page 113 of 506

111 Controls in detail
Locking and unlocking
1Remote trunk lid switch with indicator 
lamp (vehicles with trunk lid open-
ing/closing system*)
Pull remote trunk lid switch1 until the 
trunk begins to open. 
The trunk lid opens. The indicator lamp 
in the switch comes on and remains lit 
until the trunk is closed.Limiting opening height of trunk lid*
Vehicles with trunk lid opening/closing 
system*:
The trunk lid opening height can be limited 
when transporting goods on a roof rack 
(e.g. presence of an optional MB sport lug-
gage container). When activated, the trunk 
lid opens to approximately the height of 
the roof edge.
Activate the limiting opening height of 
trunk lid using the control system 
(page 166). 
!The trunk lid swings open upwards au-
tomatically. Always make sure there is 
sufficient overhead clearance.
Vehicles with trunk lid opening/closing 
system*: To stop the opening proce-
dure, press or pull remote trunk lid 
switch1.iThe trunk can also be opened using the 
buttonŠ on the SmartKey or 
SmartKey with KEYLESS-GO* or from 
its inside in an emergency, see “Trunk 
lid emergency release” (
page 117). 
     
        
        Page 141 of 506

139 Controls in detail
Lighting
Interior lighting in the front
1Left front reading lamp on/off
2Rear interior lighting on/off
3Automatic control on/off
4Front interior lighting on/off
5Right front reading lamp on/off
6Ambient lighting
7Interior lighting
8Front reading lampThe controls are located in the overhead 
control panel.
Automatic control
Activating
Press automatic control switch3.
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 165).
Deactivating
Press automatic control switch3 
again.
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 
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 ap-
proximately five minutes. 
     
        
        Page 143 of 506
141 Controls in detail
Lighting
Interior lighting in the rear
The overhead control panel is located 
above the rear seat bench.
1Ambient lighting switch, to brighten
2Rear reading lamp
3Rear reading lamp on/off
4Rear interior lamp
5Ambient lighting
6Ambient lighting switch, to dimRear reading lamps
Press desired rear reading lamp 
switch3 to switch on the correspond-
ing rear reading lamp.
Press respective rear reading lamp 
switch3 again to switch off the corre-
sponding rear reading lamp.
Ambient lighting
Press ambient lighting switch1or6 
repeatedly until ambient lighting5 
has reached the desired intensity.
You can switch the ambient lighting on and 
off, using the Control system 
(
page 165).
Trunk lamp
The trunk lamp switches on if the trunk lid 
is opened.
If the trunk lid remains open, the trunk 
lighting switches off automatically after ap-
proximately ten minutes. 
     
        
        Page 225 of 506

223 Controls in detail
Power tilt /sliding sunroof*
Power tilt /sliding sunroof*
Opening and closing the power tilt/sliding sunroof
The tilt/sliding sunroof can be opened and 
closed electrically. The switch for the 
tilt/sliding sunroof is on the overhead con-
trol panel.Sunroof switch1Push back to slide sunroof open
2Push forward to slide sunroof closed
3Push up to raise sunroof at rear
4Pull down to lower sunroof at rearWith the sunroof closed or tilted open, a 
screen can be slid into the sunroof opening 
to guard against sun rays. When sliding the 
sunroof open, the screen will also retract.
Warning!
G
When closing the tilt/sliding sunroof, make 
sure there is no danger of anyone being 
harmed by the closing procedure.
The opening/closing procedure of the 
tilt/sliding sunroof can be immediately halt-
ed by releasing the switch or, if the switch 
was moved past the resistance point and re-
leased, by moving the switch in any direc-
tion.
The tilt/sliding sunroof is made out of glass. 
In the event of an accident, the glass may 
shatter. This may result in an opening in the 
roof.
In a vehicle rollover, occupants not wearing 
their seat belts or not wearing them properly 
may be thrown out of the opening. Such an 
opening also presents a potential for injury 
for occupants wearing their seat belts prop-
erly as entire body parts or portions of them 
may protrude from the passenger compart-
ment.
 
     
        
        Page 228 of 506

226 Controls in detailPanorama roof with power tilt/sliding panel* Opening and closing the roller 
sunblinds for the panorama roof with power tilt/sliding panel
The tilt/sliding panel and the front and 
rear roller sunblinds can be opened and 
closed electrically. The switch for the 
tilt/sliding panel and the roller sunblinds is 
on the overhead control panel. An addi-
tional switch for the roller sunblinds is in 
the rear passenger compartment.
The roller sunblinds only operate with the 
tilt/sliding panel closed. The front and rear 
roller sunblind cannot be operated individ-
ually.
Roof panel switch1Open roller sunblinds
2Close roller sunblinds
Roller sunblinds switch, rear 1Open roller sunblinds
2Close roller sunblinds
Switch on the ignition (
page 33).
Opening and closing the roller sun-
blinds
To open or close the roller sunblinds, 
move the roof panel/roller sunblinds 
switch to the resistance point in the re-
quired direction of arrow1 or2.
Release the roof panel/roller sunblinds 
switch when the roller sunblinds have 
reached the desired position.