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 117 of 474

115 Controls in detailSeats
When entering the vehicle, with the 
easy-entry/exit feature activated, the 
steering wheel or, depending on your se-
lection, the steering wheel and driver’s 
seat will return to their last set memory po-
sition or a factory-set maximum forward 
position when you:
close the driver’s door with the ignition 
switched on
insert the SmartKey into the starter 
switch or press the KEYLESS-GO* 
start/stop button (
page 35) once 
with the driver’s door closed. 
iIf the current position for the steering 
wheel is in the uppermost tilt position, 
the steering wheel will no longer be 
able to move upward when the 
easy-entry/exit feature is activated. 
If the current seat position falls into a 
factory-set position range and the sys-
tem recognizes the current seat posi-
tion to be rearward enough for easy 
entry and exit, the driver’s seat will not 
move to the rear when the easy-entry/ 
exit feature is activated.
iFor safety reasons, the driver’s seat will 
not return to its last set position with 
the easy-entry/exit feature activated if 
the system recognizes the last set posi-
tion as an extreme forward position. In-
stead, the driver’s seat will remain at or 
move to a factory-set maximum for-
ward position. To again fully return the 
driver’s seat to your last set position or 
to memory position, adjust the seat to 
the desired position or press and hold 
the respective memory position button 
(page 129).  
     
        
        Page 118 of 474

116 Controls in detailSeatsRemoving and installing front seat head restraints
For information on head restraint adjust-
ment, see “Seats” (
page 37).Front seat head restraints
1Head restraint height switch
Switch on ignition (
page 34).
or
Open the respective door.Removing front head restraints
Press switch1 upwards and hold until 
the head restraint is fully extended.
Pull out head restraint.
Installing front head restraints
Press switch1 upwards and hold for 
about five seconds.
Push the head restraint down until it 
engages.
Adjust head restraint to desired posi-
tion (
page 38).
Warning!
G
For your protection, drive only with properly 
positioned head restraints.
Adjust head restraint so that the center of 
the head restraint supports the back of the 
head at eye level. This will reduce the poten-
tial for injury to the head and neck in the 
event of an accident or similar situation.
Do not drive the vehicle without the seat 
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent.iTilt the seat backrest to the rear for 
easier removal and installation of the 
head restraints. 
     
        
        Page 119 of 474
117 Controls in detailSeats
Rear seats
Power seat bench*
The switches for adjusting the seat bench 
are located at the respective rear doors.
1Seat bench fore and aft adjustment
2Head restraint heightSeat bench fore and aft adjustment
Press switch forward or backward in di-
rection of arrow1.
Head restraint height
Press switch up or down in direction of 
arrow2.Individual power seats*
The switches for adjusting the seats are lo-
cated at the respective rear doors.
1Seat fore and aft adjustment
2Seat height
3Head restraint heightWarning!
G
For your protection, drive only with properly 
positioned head restraints.
Adjust head restraint so that the center of 
the head restraint supports the back of the 
head at eye level. This will reduce the poten-
tial for injury to the head and neck in the 
event of an accident or similar situation.
Do not drive the vehicle without the seat 
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent. 
     
        
        Page 120 of 474

118 Controls in detailSeatsSeat fore and aft adjustment
Press switch forward or backward in di-
rection of arrow1.
Seat height
Press switch up or down in the direc-
tion of arrow2.
Head restraint height
Press switch up or down in direction of 
arrow3.
Power seat, setting front passenger 
seat position from rear*
This function lets you adjust the position of 
the front passenger seat from the rear.
Warning!
G
For your protection, drive only with properly 
positioned head restraints.
Adjust head restraint so that the center of 
the head restraint supports the back of the 
head at eye level. This will reduce the poten-
tial for injury to the head and neck in the 
event of an accident or similar situation.
Do not drive the vehicle without the seat 
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent.
Warning!
G
When adjusting the front passenger seat, 
make sure the seat, if occupied, is as far 
from the passenger front air bag as possi-
ble.
Otherwise, the passenger could be seriously 
or even fatally injured in the event of an ac-
cident or braking maneuver.
Make sure no one is caught or injured while 
the seat is being adjusted.
Even with the SmartKey or SmartKey with 
KEYLESS-GO* removed from the starter 
switch or the SmartKey with KEYLESS-GO* 
removed from the vehicle, the power seats 
can be operated when the respective door is 
open. Therefore, 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. 
     
        
        Page 123 of 474
121 Controls in detailSeats
Placing head restraints upright
Pull the rear head restraint upright until 
it locks into position.Placing power head restraints* upright
Switch on ignition (
page 34).
Press switch1 in the front center con-
sole and hold.
The rear head restraints will fold up-
right.Folding back and placing upright power 
head restraints* with the switches in 
the rear doors
You can fold the rear power head restraints 
backward or upright using the head re-
straint folding switches in the respective 
rear doors.
1Head restraint switch, rear
Switch on ignition (
page 34).
or
Open the respective door.
Press switch up in direction of 
arrow1.
!Make sure the head restraints engage 
when placing them upright manually. 
Otherwise their protective function 
cannot be ensured.
 
     
        
        Page 131 of 474

129 Controls in detail
Memory function
The memory button and stored position 
switch are located on the door.
1 Memory position buttons
2Memory button
Switch on ignition (
page 34).
or
Open the respective door and insert 
the SmartKey in the starter switch.
Storing positions into memory
Adjust the seats, steering wheel and 
exterior rear view mirrors to the de-
sired position (
page 37).
Press memory button2.
Release memory button2 and push 
one of the position buttons1 within 
three seconds.
All the settings are stored with the se-
lected position.
Recalling positions from memory
Press and hold one of the position 
buttons1 until the seat, steering 
wheel and exterior rear view mirrors 
have fully moved to the stored posi-
tions.iReleasing the button immediately 
stops movement to the stored posi-
tions.Warning!
G
Do not operate the power seats using the 
memory button if the seat backrest is in an 
excessively reclined position. Doing so 
could cause damage to front or rear seats.
First move seat backrest to an upright posi-
tion.