Page 103 of 418

102 Controls in detailLocking and unlockingClosing the trunk lid and locking the ve-
hicle from the outside (vehicles with 
KEYLESS-GO*)
On vehicles with trunk lid opening/closing 
system and KEYLESS-GO, you can close 
the trunk lid and lock the vehicle simulta-
neously.
1KEYLESS-GO locking/closing switch
Make sure you have the SmartKey with 
KEYLESS-GO with you.
Press switch1 briefly.
The vehicle is locked and the trunk lid 
closes automatically. The turn signals 
flash three times to confirm locking.
Warning!
G
Monitor the closing procedure carefully to 
ensure that 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, 
press the remote trunk lid switch (on the 
driver’s door), the trunk lid closing 
switch1, or the Š button on the 
SmartKey.
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.
Warning!
G
Only drive with the trunk closed as, among 
other dangers such as visibility blockage, 
exhaust fumes may enter the vehicle interi-
or.iTo prevent a possible inadvertent lock-
out, the trunk lid will open automatical-
ly if a SmartKey with KEYLESS-GO is 
recognized inside the vehicle or in the 
trunk. 
         
        
        
     
        
        Page 104 of 418

103 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.iThe emergency release button unlocks 
and opens the trunk while the vehicle is 
standing or driving.
The 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:
With the SmartKey
Insert the SmartKey in the starter 
switch.
Press button Œ or ‹ button 
on the SmartKey.
With KEYLESS-GO*
Grasp the outside door handle.
Press the KEYLESS-GO* start/stop 
button. 
         
        
        
     
        
        Page 105 of 418

104 Controls in detailLocking and unlockingSeparately locking the trunk lidThe lock is located next to the recessed 
handle.
1Locked
2Neutral position
Close the trunk lid (
page 98).
Pull the mechanical key out of the 
SmartKey (
page 331).
Insert the mechanical key into the 
trunk lid lock.
Turn the mechanical key clockwise to 
position 1.
The trunk remains locked even when the 
vehicle is centrally unlocked.
Separately unlocking the trunk lid
Pull the mechanical key out of the 
SmartKey (
page 331).
Insert the mechanical key into the 
trunk lid lock.
Turn the mechanical key counterclock-
wise to neutral position 2, see above.
You can now open the trunk (
page 96).
A minimum height clearance of 6 ft. 
(1.85 m) is required to open the trunk lid.
iYour vehicle may be equipped with a 
function permitting the separate lock-
ing of the trunk using the mechanical 
key. If present, this feature can permit 
you to deny any unauthorized person 
access to the trunk by locking the trunk 
separately and leaving the SmartKey 
less the mechanical key with the vehi-
cle.
To verify the presence of this feature, 
use the mechanical key to lock the 
trunk and then attempt to open the 
trunk by pressing the trunk lid lock af-
ter the vehicle has been centrally un-
locked with the SmartKey.
iYou can only cancel the separate trunk 
locking mode by means of the 
mechanical key.Warning!
G
Only drive with the trunk closed as, among 
other dangers such as visibility blockage, 
exhaust fumes may enter the vehicle interi-
or. 
         
        
        
     
        
        Page 106 of 418

105 Controls in detail
Locking and unlocking
Power 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 speeds of approxi-
mately 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 353).
You can deactivate the automatic locking 
using the control system (
page 153).
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 the door or trunk lid has 
been latched. When the pneumatic 
power-assist and 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 activate 
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 107 of 418

106 Controls in detailLocking and unlockingLocking 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 cannot 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 switch 1.
If both doors are closed, the vehicle 
locks.
Unlocking
Press central unlocking switch 2.
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 108 of 418

107 Controls in detailSeats
Seats
For more information on seat adjustment,  
see “Seat adjustment” (
page 35).
Easy-entry / exit feature
With the easy-entry / exit feature activat-
ed, the steering wheel tilts upwards and 
the driver’s seat moves to the rear.
This allows easier entry into and exit from 
the vehicle when the driver’s door is 
opened. However, the engine must be 
turned off.
When the SmartKey is inserted in the start-
er switch or you have pressed the 
KEYLESS-GO* start / stop button once and 
the driver’s door is closed, the steering 
wheel and the driver’s seat return to their 
last set positions.You can activate the following functions:
Steering column:
Only the steering column is adjusted. 
Steering column and seat:
The steering column and the seat are 
adjusted.
The easy-entry / exit feature can be 
switched on or off in the convenience sub-
menu of the control system (
page 154).
Warning!
G
You must make sure that no one can be-
come trapped or injured by the moving 
steering wheel and driver’s seat when the 
easy-entry / exit feature is activated, the 
driver’s door is being opened, and the en-
gine is turned off or the SmartKey is re-
moved from the starter switch. 
Do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle.  
Children could open the driver’s door and 
unintentionally activate the easy-entry/exit 
feature, which could result in an accident 
and/or serious personal injury.
iTo cancel seat/steering wheel move-
ment, do one of the following:
Press the seat adjustment switch 
(page 35)
Move the steering column stalk 
(page 39)
Press the memory button 
(page 116) 
         
        
        
     
        
        Page 110 of 418
109 Controls in detailSeats
Rear seat head restraints
Folding head restraints back
The rear seat head restraints and the rear 
seat power head restraints* can be folded 
backward for increased visibility.
1Switch in the front center console
Make sure the ignition is switched on.
All the lamps in the instrument cluster 
come on.
Press switch1 in the front center con-
sole briefly.
The rear head restraints will fold back-
ward.Placing head restraints upright
Pull the rear head restraint upright until 
it locks into position.
!The rear seat head restraints cannot be 
removed.
Warning!
G
For safety reasons, always drive with the 
rear head restraints in the upright position 
when the rear seats are occupied.
Keep the area around head restraints clear 
of articles (e.g. clothing) to not obstruct the 
folding operation of the head restraints.
!Make sure the head restraints engage 
when placing them upright manually. 
Otherwise, their protective function 
cannot be ensured. 
         
        
        
     
        
        Page 125 of 418

124 Controls in detailLightingSwitching on the hazard warning 
flasher
Press hazard warning flasher switch.
All turn signals will flash.
Switching off the hazard warning 
flasher
Press hazard warning flasher switch 
again.
Interior lighting
The controls are located in the overhead 
control panel.
1Left front reading lamp
2Rear interior lamps
3Right front reading lamp
4Rocker switch for automatic control 
systemActivating automatic control
Press rocker switch4 to the center 
position.
Interior lamps are switched on in dark-
ness, even when you:
unlock the vehicle
open a door
remove the SmartKey from the 
starter switch
The interior lamps are switched off after a 
present time (
page 152).
iWith the hazard warning flasher acti-
vated and the combination switch set 
for either left or right turn, only the re-
spective left or right turn signals will 
operate when the SmartKey in the 
starter switch is in position 1 or 2.iIf the hazard warning flasher was acti-
vated automatically, press switch1 
twice.
iIf the door remains open, the interior 
lamps switch off automatically after ap-
proximately five minutes, when the 
SmartKey is removed or in the switch 
position0.