
PRE-SAFE
®
(anticipatory occupant
protection system) G
WARNING
The PRE-SAFE ®
system reduces the impact of
an accident on vehicle occupants, as long as
their seat belts have been fastened correctly.
Although your vehicle is equipped with a PRE-
SAFE ®
system, the possibility of injury in the
event of an accident cannot be ruled out. You
should therefore always drive carefully and
adapt your driving style to the prevailing road,
weather and traffic conditions. G
WARNING
Make sure that nobody can become trapped
as you adjust the seat.
! Make sure that there are no objects in the
footwell or behind the seats when resetting
the seats. There is a risk that the seats
and/or the objects could be damaged.
PRE-SAFE ®
takes preemptive measures to
protect occupants in certain hazardous
situations.
PRE-SAFE ®
intervenes:
R if BAS intervenes, e.g. in emergency
braking situations
R if BAS PLUS intervenes powerfully — on
vehicles with DISTRONIC PLUS
R if, on vehicles with DISTRONIC PLUS, the
radar sensor system detectsani mminent
dange rofcollision in certain situations
R in critical driving situations, e.g. when
physical limits are exceeded and the
vehicle understeers or oversteers severely
PRE-SAFE ®
takes the following measures
depending on the hazardous situation
detected:
R the front seat belts are pre-tensioned.
R vehicles with the memory function: the
front-passenger seat is adjusted if it is in an
unfavorable position. R
vehicles with a multicontour seat: the air
pressure in the side bolsters of the seat
backrest is increased.
R if the vehicle skids, the sliding sunroof/
panorama roof with power tilt/sliding
panel and the side windows are closed so
that only a small gap remains.
If the hazardous situation passes without
resulting in an accident, PRE-SAFE ®
slackens
the belt pretensioning. In vehicles with
multicontour seats, the air pressure in the
side bolsters is reduced again. All settings
made by PRE-SAFE ®
can then be reversed.
If the seat belts are not released:
X Move the backrest or seat back slightly, but
only when the vehicle is stationary.
The belt pretensioning is reduced and the
locking mechanism is released.
More information about seat belt adjustment,
a convenience function integrated into PRE-
SAFE ®
, can be found in the "Seat belt
adjustment" section (Y page 57). Seat belts
Important safety notes G
WARNING
Always fasten your seat belt before driving off.
Always make sure all of your passengers are
properly restrained. You and your passengers
should always wear seat belts.
Failure to wear and properly fasten and
position your seat belt greatly increases your
risk of injuries and their likely severity in an
accident.
If you are ever in an accident, your injuries can
be considerably more severe without your
seat belt properly buckled. Without your seat
belt buckled, you are much more likely to hit
the interior of the vehicle or be ejected from
it. You can be seriously injured or killed.
In the same crash, the possibility of injury or
death is lessened if you are properly wearing
your seat belt. The air bags can only protect 54
Occupant safetySafety

Child-proof locks
Important safety notes G
WARNING
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and loc kthe vehicle.
Do not leave children unattended in the
vehicle, even if they are secured in a child
restraint system, or with access to an
unlocked vehicle. Achild's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. The children
could:
R injure themselves on parts of the vehicle
R be seriously or fatally injured through
excessive exposure to extreme heat or cold
R injure themselves or cause an accident with
vehicle equipment that can be operated
even if the SmartKey is removed from the
ignition lock or removed from the vehicle,
such as seat adjustment, steering wheel
adjustment, or the memory function
If children open a door, they could injure other
persons or get out of the vehicle and injure
themselves or be injured by following 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 the child could be burned on these
parts.
Child-proof locks for the rear doors G
WARNING
Children could open a rear door from inside
the vehicle. This could result in serious
injuries or an accident. Therefore, when
children ride in the rear always secure the rear
doors with the child-proof locks. You secure each door individually with the
child-proof locks on the rear doors.
Adoor
secured with a child-proof lock cannot be
opened from inside the vehicle. When the
vehicle is unlocked, the door can be opened
from the outside.
X To activate: press the child-proof lock
lever down in the direction of arrow 0003.
X Make sure that the child-proof locks are
working properly.
X To deactivate: press the child-proof lock
lever up in the direction of arrow 0002.
Override feature for the rear side
windows G
WARNING
When children ride on the vehicle's rear seats,
activate the override switch. Otherwise, the
children could be injured, e.g. by trapping
themselves in the rear side window. X
To activate/deactivate: press button0002.
If indicator lamp 0003is lit, operation of the
rear side windows is disabled. Operation is Children in the vehicle
65Safety Z

Useful information
..............................78
SmartKey ............................................. 78
Doors .................................................... 84
Cargo compartment ............................87
Side windows ...................................... 91
Sliding sunroof .................................... 96 77Opening and closing

themselves when doing so or be seriously or
eve nfatally 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 cargo
compartmentu nless 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 Unlocking and opening doors from
the inside
You can open a door from inside the vehicle
eve nifith as been locked. You can only open
the rear doors from inside the vehicle if they
are no tsecured by the child-proof locks
(Y page 65).
If the vehicle has been locked with the
SmartKey or with KEYLESS-GO, opening a
door from the inside will trigger the anti-theft
alarm system. Switch off the alarm
(Y page 76). X
Front door: pull door handle 0003.
If the door is locked, locking knob 0002pops
up. The door is unlocked and can be
opened.
X Rear door: pull up locking knob 0002on the
relevant rear door.
The rear door is unlocked and can be
opened. Centrally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehicle
from the inside. The buttons are located on
both fron tdoors. 0002
To unlock
0003 To lock
X To unlock: press button 0002.
X To lock: press button 0003.
If the front-passenger door is closed, the
vehicle locks.
Meanwhile, the fuel filler flap will not be
locked or unlocked.
You cannot unlock the vehicle centrally from
the inside if the vehicle has been locked with
the SmartKey or KEYLESS-GO.
You can open a front door from inside the
vehicle even if it has been locked. Doors
85Opening and closing Z

Opening and closing the hinged side
windows
Important safety notes G
WARNING
Make sure that nobody can become trapped
as you close the hinged side windows. If there
is a risk of somebody becoming trapped,
release the switch or push the switch again to
reopen the side window.
Opening/closing The hinged side windows are operated
electrically from the from the driver's seat.
X
Make sure that the SmartKey is in position
1 or 2in the ignition lock.
X To open fully: press switch0002and release.
X To close fully: pull switch0002and release.
X To stop the closing procedure: press
switch 0002again.
Both hinged side windows open fully.
i If the hinged side windows are blocked
when closing, the closing procedure is
interrupted and the hinged side windows
open again fully. Convenience opening
General notes You can ventilate the vehicle before you start
driving. To do this, the SmartKey is used to
carry out the following functions
simultaneously:
R
unlock the vehicle
R open the side windows
R open the hinged side windows
R open the sliding sunroof or the panorama
roof with power tilt/sliding panel and the
roller sunblinds
R switch on the seat ventilation for the
driver's seat
i The convenience opening feature can
only be operated using the SmartKey. The
SmartKey must be close to the driver's
door handle.
Convenience opening X
Point the tip of the SmartKey at the driver's
door handle.
X Press and hold the 000Dbutton until the
side windows and the sliding sunroof or the
panorama roof with power tilt/sliding
panel are in the desired position.
If the roller sunblinds of the panorama roof
with power tilt/sliding panel are closed, the
roller sunblinds are opened first.
X Press and hold the 000Dbutton again until
the panorama roof with power tilt/sliding
panel is in the desired position.
X To interrupt convenience opening:
release the 000Dbutton. Convenience closing feature
Important safety notes G
WARNING
When the convenience closing feature is
operating, parts of the body could become
trapped in the closing area of the side window Side windows
93Opening and closing
Z

and the sliding sunroof. There is a risk of
injury.
Observe the complete closing procedure
when the convenience closing feature is
operating. Make sure that no body parts are
in close proximity during the closing
procedure.
When you loc kthe vehicle, you can
simultaneously:
R close the side windows
R close the hinged side windows
R close the sliding sunroof or the panorama
roof with power tilt/sliding panel
On vehicles with a panorama roof with power
tilt/sliding panel, you can then close the
roller sunblinds.
Proceed as follows if someone is trapped:
R Release the 000Cbutton to interrupt the
closing procedure.
R Press and hold the 000Dbutton to open.
Vehicles with KEYLESS-GO:
R Release the sensor surfaces on the exterior
door handle to interrupt the closing
procedure.
R To open, pull the same door handle
immediately and hold it firmly. The door
windows and the sliding sunroof will open
for as long as the door handle is held but
the door is not opened.
i Notes on the automatic reversing feature
for:
R the side window (Y page 91)
R the sliding sunroof (Y page 96)
Using the SmartKey The SmartKey must be close to the driver's
door handle.
X
Point the tip of the SmartKey at the driver's
door handle.
X Press and hold the 000Cbutton until the
side windows and the sliding sunroof or the panorama roof with power tilt/sliding
panel are fully closed.
X Make sure that all the side windows and the
sliding sunroof or panorama roof with
power tilt/sliding panel are closed.
On vehicles with a panorama roof with power
tilt/sliding panel:
X Press and hold the 000Cbutton again until
the roller sunblinds of the panorama roof
with power tilt/sliding panel close.
X To interrupt convenience closing:
release the 000Cbutton.
Using KEYLESS-GO The KEYLESS-GO key must be outside the
vehicle. All the doors must be closed.
X
Touch recessed sensor surface 0002on the
door handle until the side windows and the
sliding sunroof or the panorama roof with
power tilt/sliding panel are fully closed.
i Make sure you only touch recessed
sensor surface 0002.
X Make sure that all the side windows and the
sliding sunroof or panorama roof with
power tilt/sliding panel are closed.
On vehicles with a panorama roof with power
tilt/sliding panel:
X Touch recessed sensor surface 0002on the
door handle again until the roller sunblinds
of the panorama roof with power tilt/
sliding panel close. 94
Side windowsOpening and closing

Problems with the side windows
G
WARNING
Closing the side windows with increased force or without the anti-entrapment feature could lead
to serious or even fatal injury. Make sure that nobody can become trapped when closing the side
windows. Problem Possible causes/consequences and
0001 Solutions
As
ide window cannot
be closed because it is
blocked by objects, e.g.
leaves in the window
guide. X
Remove the objects.
X Close the side window. As
ide window cannot
be closed and you
cannot see the cause. If a side window is obstructed during closing and reopens again
slightly:
X
Immediately after the window blocks, pull the corresponding
switch again until the side window has closed.
The side window is closed with increased force.
If a side window is obstructed again during closing and reopens
again slightly:
X Immediately after the window blocks, pull the corresponding
switch again until the side window has closed.
The side window is closed without the anti-entrapmen tfeature. Sliding sunroof
Important safety notes
Your vehicle may be equipped with a sliding
sunroof or a panorama roof with power tilt/
sliding panel. In this section, the term "sliding
sunroof" refers to both types of sliding
sunroof. G
WARNING
While opening and closing the sliding sunroof,
body parts in close proximity could become
trapped. There is a risk of injury.
Make sure that no body parts are in close
proximity during the opening and closing
procedures. If somebody becomes trapped:
R
release the switch immediately, or
R during automatic operation, push the
switch briefly in any direction
The opening or closing procedure will be
stopped. G
WARNING
If children operate the sliding sunroof they
could become trapped, particularly if they are
left unsupervised. There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The sliding sunroof is equipped with an
automatic reversing feature. If an object
blocks or restricts the sliding sunroof during 96
Sliding sunroofOpening and closing

the closing process, the sliding sunroo
fopens
again automatically. G
WARNING
The reversing feature does not react:
R to soft, light and thin objects, e.g. small
fingers
R over the last 4mmofthe closing movement
R during resetting
R when closing the sliding sunroof again
manually immediately after automatic
reversing
This means that the reversing feature cannot
prevent someone being trapped in these
situations. There is a risk of injury.
Make sure that no body parts are in close
proximity during the closing procedure.
If somebody becomes trapped:
R release the switch immediately, or
R during automatic operation, push the
switch briefly in any direction
The closing process is stopped.
! Only open the sliding sunroof if it is free
of snow and ice. Otherwise, malfunctions
may occur.
Do not allow anything to protrude from the
sliding sunroof. Otherwise, the seals could
be damaged.
i Resonance noises can occur in addition
to the usual airflow noises when the sliding
sunroof is open. They are caused by minor
pressure fluctuations in the vehicle interior.
Change the position of the sliding sunroof
or open a side window. The noise will be
reduced or eliminated. Operating the sliding sunroof
Opening and closing Overhead control panel
0002
To raise
0003 To open
0021 To close/lower
X Turn the SmartKey to position 1or 2in the
ignition lock.
X Press or pull the 0002switch in the
corresponding direction.
i If you press the 0002switch beyond the
point of resistance, an automatic opening/
closing process is started in the
corresponding direction. You can stop
automatic operation by operating the
switch again.
When opening and raising the roof,
automatic operation is only available if the
sliding sunroof is in the closed position.
The sun protection cover automatically opens
along with the sliding sunroof. You can open
or close the sun protection cover manually
when the sliding sunroof is raised or closed.
i You can continue to operate the sliding
sunroof after switching off the engine or
removing the SmartKey from the ignition
lock. This function is available for up to five
minutes or until the driver's or front-
passenger door is opened. Sliding sunroof
97Opening and closing Z