Page 101 of 491

100 Safety and SecurityAnti-theft systemsDisarming the tow-away alarm
To prevent triggering the tow-away alarm 
feature, switch off the tow-away alarm be-
fore towing the vehicle, or when parking on 
a surface subject to movement, such as a 
ferry or auto train.
The button is located on the overhead con-
trol panel.
1Tow-away alarm off button
Switch off the ignition and remove the 
SmartKey from the starter switch.
Press button1.
The indicator lamp in the button comes 
on briefly.
Exit and lock your vehicle with the 
SmartKey or (vehicles with 
KEYLESS-GO*) the lock button at each 
door handle.
The tow-away alarm remains disarmed un-
til you lock your vehicle again.Canceling tow-away alarm
To cancel the alarm:
With the SmartKey
Insert the SmartKey in the starter 
switch.
or
Press the Œ or ‹ button on the 
SmartKey.
With KEYLESS-GO*
Pull the outside door handle.
The SmartKey with KEYLESS-GO must 
be within 3 ft (1 m) of the vehicle.
or
Press the KEYLESS-GO* start/stop 
button (
page 35).
The SmartKey with KEYLESS-GO must 
be inside the vehicle.
The alarm is canceled.
iYou cannot disarm the tow-away alarm 
when the ignition is switched on. 
     
        
        Page 123 of 491

122 Controls in detailLocking and unlockingAutomatic central locking
The doors and the tailgate automatically 
lock when the ignition is switched on and 
the wheels are turning at vehicle speeds of 
approximately 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 430).
You can deactivate the automatic locking 
mode using the control system 
(
page 174).
Locking and unlocking from the inside
You can lock or unlock the doors and the 
tailgate from inside using the central lock-
ing switch. This can be useful, for example, 
if you want to lock the vehicle before start-
ing to drive.
The fuel filler flap cannot be locked or un-
locked with the central locking switch.
Warning!
G
Only drive with the tailgate closed as, 
among other dangers such as visibility 
blockage, exhaust fumes may enter the ve-
hicle interior.
iThe doors unlock automatically after an 
accident if the force of the impact ex-
ceeds a preset threshold.
The vehicle automatically locks 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
Warning!
G
When leaving the vehicle, always remove the 
SmartKey or the SmartKey with 
KEYLESS-GO* from the starter switch, take 
it with you, and lock the vehicle. 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. 
     
        
        Page 126 of 491

125 Controls in detailSeats
When entering the vehicle, with the 
easy-entry/exit feature activated, the 
steering wheel or, depending on your 
selection, the steering wheel and driver’s 
seat will return to their last set position or 
a factory-set maximum forward position 
when you:
close the driver’s door, and switch on 
the ignition.
or 
insert the SmartKey into the starter 
switch or press KEYLESS-GO* 
start/stop button once with 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. 
Instead, the driver’s seat will remain at 
or move to a factory-set maximum 
forward position. To again fully return 
the driver’s seat to your last set posi-
tion or to memory position, adjust the 
seat to the desired position or press 
and hold the respective memory 
position switch (
page 139). 
     
        
        Page 128 of 491
127 Controls in detailSeats
Rear seat head restraints
Folding head restraints back
The rear seat head restraints can be folded 
backward for increased visibility.Folding head restraints back with switch 
in the center console
1Head restraint release switch
Switch on the ignition (
page 34).
Press the symbol-side on rocker 
switch1 to release the head re-
straints.
The head restraints will fold backward.Folding head restraints back manually 
(rear outer seats)
1Release button
Push release button1 and fold the 
head restraints backward.
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. 
     
        
        Page 131 of 491

130 Controls in detailSeatsInstalling rear seat head restraints
Insert head restraint and push it down 
until it engages.
Push button1 and adjust head 
restraint to desired position.Drive - Dynamic seat* with multicon-
tour features
The Drive - Dynamic seat automatically ad-
justs the lateral support provided by the 
backrest to your driving style.
The Drive - Dynamic seat electronically 
controls the air pressure in the air cham-
bers of the backrest side bolsters. This 
function improves driving comfort and 
pleasure.
Additional the Drive-Dynamic seat has a 
movable seat cushion and inflatable air 
cushions built into the backrest to provide 
additional lumbar and side support. 
The seat cushion movement, backrest 
cushion height and curvature can be con-
tinuously varied with switches on the right 
side of the seat after turning the SmartKey 
in the starter switch to position2 or press-
ing the KEYLESS-GO* start/stop button 
twice.1Backrest center
2Backrest bottom
3Seat cushion depth
4Activate drive dynamic function
5Backrest side bolsters
6Massage function
Switch on the ignition (
page 34).
!When installing the head restraints, 
make sure that: 
The proper head restraint for each 
seat is installed. The bars of the 
head restraint designed for the mid-
dle rear seat are of even length and 
shorter than those designed for use 
on the outer rear seats. 
The head restraints engage fully.  
     
        
        Page 133 of 491

132 Controls in detailSeatsSeat heating*
Both switches for the front seats are locat-
ed in the center console. The red indicator 
lamps in the switch comes on to show 
which heating level you have selected.
1Seat heating switch
Switch on the ignition (
page 34).
Switching seat heating on
Press switch1 repeatedly until the 
desired heating level is set.
One or more red indicator lamps on the 
switch show the selected heater level.Switching seat heating off
Press switch1 repeatedly until all in-
dicator lamps go out.
Leveloff
No indicator lamps on
1
One indicator lamp onThe seat heater automatically 
switches off after approximately 
20 minutes.
2
Two indicator lamps onThe seat heater automatically 
switches to level 1 after approxi-
mately ten minutes.
3
Three indicator lamps onThe seat heater automatically 
switches to level 2 after approxi-
mately five minutes.
iIf one or more of the lamps on the seat 
heater switch are flashing, there is in-
sufficient voltage available since too 
many electrical consumers are turned 
on. The seat heater switches off auto-
matically.
The seat heater will switch back on 
again automatically as soon as suffi-
cient voltage is available. 
     
        
        Page 134 of 491

133 Controls in detailSeats
Seat ventilation*
The switch is located on the center con-
sole. Seat ventilation can be activated 
manually with the ignition on, or by the 
summer opening feature (
page 223).
The blue indicator lamps on the switch 
show the ventilation level selected:
1Seat ventilation switch
Switch on the ignition (
page 34).
Switching seat ventilation on
Press button1 repeatedly until the 
desired ventilation level is set.Switching seat ventilation off
Press button1 repeatedly until all in-
dicator lamps go out.
Level3
Three indicator lamps lit
2
Two indicator lamps lit
1
One indicator lamp lit
off
No indicator lamp lit
iThe seat ventilation is automatically set 
to the highest level if activated via sum-
mer opening feature (
page 223).
iIf one or all of the lamps flash on the 
seat ventilation switch, there is insuffi-
cient voltage due to too many electrical 
consumers being switched on. The seat 
ventilation switches off automatically.
The seat ventilation will switch back on 
again automatically as soon as suffi-
cient voltage is available. 
     
        
        Page 140 of 491

139 Controls in detail
Memory function
The memory button and stored position 
button are located on the door.
MMemory button
1, 2, 3Stored positions
Switch on the ignition (
page 34).
or
Open the respective door and insert 
the SmartKey in the starter switch.
Storing positions in memory
Adjust the seats, steering wheel and 
exterior rear view mirrors to the de-
sired position (
page 38).
Press memory buttonM.
Release memory button and press 
stored position button 1, 2 or 3 within 
three seconds.
All the settings are stored at the select-
ed position.
Recalling positions from memory
Press and hold stored position 
button1, 2 or3 until the seat, steering 
wheel and exterior rear view mirrors 
have completely moved to the stored 
positions.!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.iReleasing the stored position button 
stops movement to the stored posi-
tions immediately.