G
WARNING
PRE-SAFE ®
Brake cannot always detect
complex traffic situations properly.
In these cases, PRE-SAFE(R) Brake may:
R give an unnecessary warning and then
brake the vehicle
R neither give a warning nor intervene
There is a risk of an accident. Always pay
particular
attention to the traffic situation and
be ready to brake, especially if PRE-SAFE(R)
Brake warns you. Terminate the intervention
in a non-critical driving situation.
In particular, the detection of obstacles can
be impaired if there is:
R dirt on the sensors or anything else
covering the sensors
R snow or heavy rain
R interference by other radar sources
R the possibility of strong radar reflections,
for example in parking garages
R a narrow vehicle traveling in front, e.g. a
motorbike
R a vehicle traveling in front on a different line G
WARNING
PRE-SAFE ®
Brake does not react:
R to people or animals
R to oncoming vehicles
R to crossing traffic
R in curves
As a result, PRE-SAFE ®
Brake cannot
intervene in critical situations. There is a risk
of an accident. Always pay careful attention
to the traffic situation and be ready to brake.
In
order to maintain the appropriate distance
to the vehicle in front and thus prevent a
collision, you must apply the brakes yourself. X
To activate/deactivate: activate or
deactivate PRE-SAFE ®
Brake in the on-
board computer ( Y page 384).
After activation, the Ä symbol is
displayed on the left in the instrument
cluster.
For PRE-SAFE ®
Brake to assist you when
driving, the radar sensor system must be
switched on (Y page 387) and operational.
Following damage to the front end of the
vehicle,
have the configuration and operation
of the radar sensors checked at a qualified
specialist workshop. This also applies to
collisions at low speeds where there is no
visible damage to the front of the vehicle. Theft deterrent locking systems
Immobilizer
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. The
engine can be started by anyone with a valid
SmartKey that is left inside the vehicle.
X To activate with the SmartKey: remove
the SmartKey from the ignition lock.
X To activate with KEYLESS-GO:
switch the
ignition off and open the driver's door.
X To deactivate: switch on the ignition.
i The immobilizer is always deactivated
when you start the engine. ATA (Anti-Theft Alarm system)
A visual and audible alarm is triggered if the
alarm system is armed and you open:
R a door
R the vehicle with the mechanical key
R the trunk lid
R the hood Theft deterrent locking systems
75
Safety Z
Useful information ..............................
78
SmartKey ............................................. 78
Doors .................................................... 85
Trunk .................................................... 88
Side windows ...................................... 92
Sliding sunroof .................................... 95 77Opening/closing
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
The Product label with FCC ID and IC
certification number can be found in the
battery case of the SmartKey.
i Canada only:
This device complies with RSS-210 of
Industry Canada. Operation is subject to
the following two conditions:
1. This device may not cause interference,
and
2.
this device must accept any interference
received, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
The Product label with FCC ID and IC
certification number can be found in the
battery case of the SmartKey.
Locking and unlocking centrally The SmartKey centrally locks/unlocks:
R
the doors
R the trunk lid
R the fuel filler flap :
& Locks the vehicle
; F Unlocks the trunk lid
= % Unlocks the vehicle
When unlocking, the turn signals flash once.
When locking, they flash three times. When it is dark, the surround lighting also
comes on if it is activated in COMAND
(Y page 264).
If you activate the acoustic locking
confirmation function, you will hear the
following, depending on the date of
production of the vehicle:
R
an acoustic signal when locking
or
R one acoustic signal when unlocking and
three when locking.
The audible signal can be activated and
deactivated using the on-board computer
(Y page 386).
X To unlock centrally: press the %
button.
If you do not open the vehicle within
approximately 40 seconds of unlocking:
R the vehicle is locked again.
R the
theft deterrent locking system is armed
again.
X To lock centrally: press the & button. KEYLESS-GO
General notes i
USA only:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful
interference, and
2.
this device must accept any interference
received, including interference that may
cause undesired operation.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
The Product label with FCC ID and IC
certification number can be found in the
battery case of the SmartKey.
i Canada only: SmartKey
79
Opening/closing Z
X
To unlock the vehicle: pull the door
handle.
X To lock the vehicle: touch sensor
surface :.
X Convenience closing feature: touch
recessed sensor surface ; for an
extended period ( Y page 94).
If you pull on the handle of the trunk lid, only
the trunk of the vehicle is unlocked. Changing the settings of the locking
system
You can change the setting of the locking
system in such a way that only the driver's
door
and the fuel filler flap are unlocked. This
is useful if you frequently travel on your own.
X To change the setting: press and hold
down the % and & buttons
simultaneously for approximately six
seconds until the battery check lamp
(Y page 82) flashes twice.
i If the setting of the locking system is
changed within the signal range of the
vehicle, pressing the & or % button
locks or unlocks the vehicle.
The SmartKey now functions as follows:
X To unlock the driver's door: press the
% button once.
X To unlock centrally: press the %
button twice.
X To lock centrally: press the & button.
The KEYLESS-GO function is changed as
follows:
X To unlock the driver's door :
pull the door
handle on the driver's door.
X To unlock centrally: pull the door handle
on the front-passenger door or on the rear
doors.
X To lock centrally: touch the outer sensor
surface on one of the door handles. Restoring the factory settings
X Press the % and & buttons
simultaneously for approximately six
seconds until the battery check lamp
flashes twice. Mechanical key
General notes If you use the mechanical key to unlock and
open the driver's door or the trunk lid, the
anti-theft alarm system will be triggered
(Y page 75).
There are several ways to turn off the alarm:
X
To turn the alarm off with the
SmartKey:
press the % or & button
on the SmartKey.
or
X Insert the SmartKey into the ignition lock.
or
X To deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the
ignition lock. The SmartKey must be in the
vehicle.
or
X Lock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.
Removing the mechanical key SmartKey
81
Opening/closing Z
vehicle are turning at a speed of more than
9 mph (15 km/h).
You could therefore be locked out when:
R
the vehicle is being pushed.
R the vehicle is being towed.
R the vehicle is being tested on a
dynamometer.
You can switch off the automatic locking
function via COMAND ( Y page 264).Power closing feature
The power closing feature pulls the doors and
trunk lid into their locks automatically even if
they are only partly closed. G
WARNING
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.
If danger threatens, pull the inside or outside
door handle, or pull the trunk lid handle.
To prevent personal injury, never activate the
closing assist mechanism by tampering with
the door or trunk lid latch. G
WARNING
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. G
WARNING
Make sure the trunk lid is closed when the
engine is running and while driving. Among
other dangers, deadly carbon monoxide (CO)
gases
may enter the vehicle interior resulting
in unconsciousness and death. X
Power closing feature (doors): push the
door past the first detent position of the
lock.
The
power closing feature will pull the door
fully closed.
X Power closing feature (trunk lid): lightly
push the trunk lid closed.
The
power closing feature will pull the trunk
lid fully closed. Unlocking the driver's door
(mechanical key)
If
the vehicle can no longer be unlocked with
the SmartKey, use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered ( Y page 75).
X Take the mechanical key out of the
SmartKey (Y page 81).
X Insert the mechanical key into the lock of
the driver's door as far as it will go. X
Firmly turn the mechanical key
counterclockwise as far as it will go to
position 1 and hold it in this position.
X Pull the door handle quickly.
The locking knob pops up.
The door is unlocked.
X Turn the mechanical key back and remove
it.
X Pull the door handle again.
X Insert the mechanical key into the
SmartKey. Doors
87
Opening/closing Z
Locking the vehicle
If the vehicle can no longer be locked with the
SmartKey, you can lock it by taking the
following steps. If the central locking in the
vehicle is malfunctioning, you cannot lock the
trunk.
X Press down the locking knobs on the open
rear doors.
X Close the rear doors.
X Open the front-passenger door.
X Close the driver's door and the trunk lid.
X Press down the locking knob of the driver's
door inside the vehicle.
X Press down the locking knob of the open
front-passenger door.
i Make
sure that you have the SmartKey on
your person and that it has not been left in
the vehicle.
X Close the front-passenger door.
X Make sure that the doors and the trunk are
locked.
i If
you lock the vehicle as described above,
the fuel filler flap is not locked. The anti-
theft alarm system is not armed. Trunk
Important safety notes
Do not leave the SmartKey in the trunk. You
could otherwise lock yourself out. G
WARNING
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint
system, and do not give them access
to an unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. They could:
R injure themselves on vehicle parts
R be seriously or fatally injured by extreme
heat or cold
R injure themselves or have an accident with
vehicle equipment that may still be in
operation even after the SmartKey has
been removed from the ignition, such as the
seat adjustment, steering wheel
adjustment or memory function.
If children open a door, they could cause
severe or even fatal injury to other persons; if
they get out of the vehicle, they could injure
themselves when doing so or be seriously or
even fatally injured by any passing traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and a child could be burned on these
parts. G
WARNING
Do not carry heavy or hard objects in the
passenger
compartment or trunk unless they
are firmly secured in place.
Unsecured or improperly positioned cargo
increases a child's risk of injury in the event
of
R strong braking maneuvers
R sudden changes of direction
R an accident G
WARNING
Make sure the trunk lid is closed when the
engine is running and while driving. Among
other dangers, deadly carbon monoxide (CO) 88
Trunk
Opening/closing
gases may enter the vehicle interior resulting
in unconsciousness and death.
! The trunk lid swings upwards when
opened.
Therefore, make sure that there is
sufficient clearance above the trunk lid.
You can limit the opening angle of the trunk
lid. This could be useful, for example, if there
is insufficient space above the trunk lid. You
can switch the Trunk Opening-height
Restriction function on or off via COMAND
(Y page 265).
To open the trunk lid completely, a minimum
clearance of 5.90 ft (1.80 m) above the
ground is necessary.
Vehicles without trunk lid remote closing
feature: the trunk lid can be:
R opened and closed manually from outside
R opened automatically from outside
R opened automatically from inside
R locked separately
R unlocked with the mechanical key
R opened with the emergency release button
Vehicles with trunk lid remote closing
feature: the trunk lid can be:
R opened and closed manually from outside
R opened and closed automatically from
outside
R opened and closed automatically from
inside
R locked separately
R unlocked with the mechanical key
R opened with the emergency release button Opening and closing manually
Opening X
Press the % button on the SmartKey. X
Pull handle :.
X Raise the trunk lid.
Closing G
WARNING
To prevent possible personal injury, always
keep hands and fingers away from the trunk
opening when closing the trunk lid. Be
especially careful when small children are
around. X
Pull the trunk lid down using recess :.
X If necessary, lock the vehicle with
the & button on the SmartKey
(Y page 78) or with KEYLESS-GO
(Y page 79).
i If a KEYLESS-GO key is detected in the
trunk, the trunk lid cannot be locked and
then opens again. Trunk
89
Opening/closing Z
Opening/closing automatically from
outside
Important safety notes G
WARNING
Make sure the trunk lid is closed when the
engine is running and while driving. Among
other dangers, deadly carbon monoxide (CO)
gases
may enter the vehicle interior resulting
in unconsciousness and death.
! The trunk lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the trunk lid.
To open the trunk lid completely, a minimum
clearance of 5.90 ft (1.80 m) above the
ground is necessary.
Opening You can open the trunk lid using the
SmartKey.
X
Press and hold the F button on the
SmartKey until the trunk lid opens.
Closing G
WARNING
Monitor the closing procedure carefully to
make sure no one is in danger of being
injured. To prevent possible personal injury,
always
keep hands and fingers away from the
trunk opening when closing the trunk lid. Be
especially careful when small children are
around. To stop the closing procedure, do one
of the following:
R Press button F on the SmartKey.
R Press the remote trunk opening/closing
switch (on the driver's door).
R Press the trunk closing switch.
R Press the KEYLESS-GO locking/closing
switch.
R Pull the trunk lid handle. Even with the SmartKey removed from the
starter
switch or the SmartKey with KEYLESS-
GO removed from the vehicle, the remote
trunk opening/closing switch can be
operated. Therefore, do not leave children
unattended in the vehicle, or with access to
an unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury.
You can close the trunk lid automatically by
using the closing button 3
or locking button 4
. X
To close: press closing button : in the
trunk lid.
X To close and lock simultaneously:
Press locking button ; in the trunk lid.
i If you leave a KEYLESS-GO key in the
trunk, the trunk lid will not lock. Opening/closing automatically from
the inside
G
WARNING
Maintain sight of the area around the rear of
the vehicle while operating the trunk lid with
the
door mounted switch. Monitor the closing
procedure carefully to make sure no one is in
danger of being injured.
To interrupt the closing procedure, release
the door mounted remote trunk opening/
closing switch again.
3 For vehicles with the trunk lid remote closing feature only.
4 For vehicles with the trunk lid remote closing feature and KEYLESS-GO only.90
Trunk
Opening/closing