
Problems with the BabySmart™ air bag deactivation system
Problem
Possible causes/consequences and
M
MSolutions The PASSENGER AIR
BAG OFF indicator
lamp on the center con-
sole is lit. A special Mercedes-Benz child restraint system with a trans-
ponder for the BabySmart™ air bag deactivation system has been
installed on the front-passenger seat. The front-passenger air bag has therefore been deactivated as desired. G
WARNING
There is no child restraint system installed on the front-passenger
seat. The BabySmart™ air bag deactivation system is malfunc-
tioning, for example due to electronic devices on the front-
passenger seat.
There is a risk of injury.
X Remove electronic equipment from the front-passenger seat,
for example:
R Laptop
R Mobile phone
R Card with a transponder, such as a ski pass or access pass
If the PASSENGER AIR BAG OFF indicator lamp remains lit, the
front-passenger seat may not be used.
X Visit a qualified specialist workshop. The
6 restraint sys-
tem warning lamp
lights up and/or the
PASSENGER AIR BAG
OFF indicator lamp
does not light up briefly
when you switch the
ignition on. G
WARNING
The BabySmart™ air bag deactivation system is malfunctioning.
Do not install a child restraint system on the front-passenger seat.
It is recommended that you install the child restraint system on a suitable rear seat.
X Visit a qualified specialist workshop.
X Please also refer to the notes about the restraint system warning
lamp (Y page 242). Child-proof locks
Important safety notes 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. Children in the vehicle
59Safety Z

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 unattended in the vehi- cle, even if they are secured in a child restraint
system, 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. 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 inju-
ries 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. A door
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 ;.
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 :.
Override feature for the rear side win-
dows 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 button:.
If indicator lamp ;is lit, operation of the
rear side windows is disabled. Operation is
only possible using the switches in the driv- er's door. If indicator lamp ;is off, oper-
ation is possible using the switches in the
rear compartment. 60
Children in the vehicleSafety

ATA (anti-theft alarm system)
X
To arm: lock the vehicle with the Smart-
Key.
Indicator lamp :flashes. The alarm sys-
tem is armed after approximately
15 seconds.
X To disarm: unlock the vehicle with the
SmartKey.
i If you then do not open a side door or the
rear door, the alarm system switches back
on again after approximately 40 seconds.
X To stop the alarm: insert the SmartKey
into the ignition lock.
The alarm is switched off.
or X Press the %or& button on the
SmartKey.
The alarm is switched off.
A visual and audible alarm is triggered if the
alarm system is armed and you open:
R a door
R a door using the mechanical key
R the rear door
R the hood
The alarm is also triggered if:
R the position of the vehicle is changed.
R a window is smashed.
The alarm is not switched off, even if you
close the open door that triggered it, for
example. i
If the alarm stays on for more than
30 seconds, the mbrace emergency call
system (USA only) or Tele Aid system (Can- ada only) initiates a call to the Customer
Assistance Center automatically. The
mbrace emergency call system initiates the
call if:
R you have subscribed to the Tele Aid ser-
vice.
R the Tele Aid service has been activated
properly.
R the required mobile phone, power supply
and GPS are available. 66
Theft deterrent locking systemSafety

Useful information
..............................68
SmartKey ............................................. 68
Doors .................................................... 73
Rear door ............................................. 76
Side windows ...................................... 77
Sliding sunroof .................................... 79 67Opening and closing

G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. If the rear
door is open when the engine is running, par- ticularly if the vehicle is moving, exhaust
fumes could enter the passenger compart-
ment. There is a risk of poisoning.
Turn off the engine before opening the rear
door. Never drive with the rear door open.
! The tailgate swings out to the side when
opened. Therefore, make sure that there is sufficient clearance.
i Do not leave the SmartKey in the cargo
compartment. Otherwise, you could lock
yourself out. Opening
You can only open the rear door after unlock- ing it first.
X Press the %button on the SmartKey. X
Press release button :and pull door han-
dle ;.
X Open the rear door. Closing
X Push the rear door closed from outside the
vehicle.
X If necessary, lock the vehicle with the &
button on the SmartKey. Side windows
Important safety notes
G
WARNING
While closing the side windows, body parts in the closing area could become trapped. There is a risk of injury.
When closing make sure that no parts of the
body are in the closing area. If somebody
becomes trapped, release the switch or press
the switch to open the side window again. G
WARNING
While opening the side windows, body parts
could become trapped between the side win- dow and the door frame as the side window
moves. There is a risk of injury.
Make sure that nobody touches the side win-
dow during the opening procedure. If some-
body becomes trapped, release the switch or pull the switch to close the side window again. Opening and closing the side win-
dows
The switches for all side windows are located
on the driver's door. There is also a switch on each door for the corresponding side window.
The switches on the driver's door take prec-
edence.
The side windows cannot be operated from
the rear when the override feature for the side
windows is activated (Y page 60). Side windows
77Opening and closing Z

:
Front left
; Front right
= Rear right
? Rear left
X Turn the SmartKey to position 1or 2in the
ignition.
X To open: press the corresponding switch.
X To close: pull the corresponding switch.
X To open automatically: press the corre-
sponding switch briefly beyond the point of
resistance.
The side window opens completely.
X To interrupt automatic operation: press
or pull the corresponding switch again.
i You can continue to operate the side win-
dows after you switch off the engine or
remove the SmartKey. This function is
available for up to five minutes or until the
driver's or front-passenger door is opened.
i The side windows cannot be operated
from the rear when the override feature for
the side windows is activated (Y page 60).Convenience opening
i The convenience opening feature can
only be operated using the SmartKey. The
SmartKey must be close to the driver's
door handle. You can ventilate the vehicle before you start
driving. To do this, the SmartKey is used to
carry out the following functions simultane-
ously:
R unlock the vehicle
R open the side windows
R open the sliding sunroof
R switch on the seat ventilation for the driv-
er's seat and front-passenger seat
X Point the tip of the SmartKey at the driver's
door handle.
X Press and hold the %button until the
side windows and the sliding sunroof are in the desired position.
X To interrupt convenience opening:
release the %button. 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 clos-
ing the side windows.
Problem: a side window cannot be closed because objects are trapped between the
side window and the door frame.
X Remove the objects.
X Close the side window.
Problem: a side 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. 78
Side windowsOpening and closing

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.
i If a side window no longer opens or closes
due to a malfunction, contact a qualified
specialist workshop. Sliding sunroof
Important safety notes
! 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.
! If the sliding sunroof still cannot be
opened or closed as a result of a malfunc-
tion, contact a qualified specialist work-
shop.
! The weather can change abruptly. It could
start to rain or snow. Make sure that the
sliding sunroof is closed when you leave the
vehicle. The vehicle electronics can be
damaged if water enters the vehicle inte-
rior.
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 slightly to reduce or
eliminate these noises. Opening and closing the sliding sun-
roof
Overhead control panel
:
To raise
; To open
= To close/lower
X Turn the SmartKey to position 1or 2
(Y page 133) in the ignition.
X Press or pull the ¡switch in the corre-
sponding direction.
X To open automatically: press the
¡ switch briefly beyond the point of
resistance in the direction of arrow ;.
The sliding sunroof opens completely.
X To interrupt automatic operation: press
or pull the ¡switch again.
i When opening and raising the roof, auto-
matic operation is only available if the slid- ing sunroof is in the closed position. Operating the sliding sunroof man-
ually
The actuator is located in the cargo compart-
ment, on the left-hand side behind the rear
wall trim. Sliding sunroof
79Opening and closing Z

Switching the seat heating on/off
General notes G
WARNING
Repeatedly switching on the seat heating can
cause the seat cushion and backrest pads to
become very hot. The health of persons with
limited temperature sensitivity or a limited
ability to react to excessively high tempera-
tures may be affected or they may even suffer burn-like injuries. There is a risk of injury.
Therefore, do not switch the seat heating on
repeatedly.
The red indicator lamps in the button indicate the heating level you have selected.
X Make sure that the SmartKey is in position
2 in the ignition lock.
i If the battery voltage is too low, the seat
heating may switch off.
One or more of the indicator lamps in the
seat heating button are flashing.
Switching the front-seat heating on/off X
To switch on: press button:repeatedly
until the desired heating level is set.
X To switch off: press button:repeatedly
until all the indicator lamps go out.
i The system automatically switches from
level 3to level 2after approximately
8 minutes. The system automatically switches from
level
2to level 1after approximately
10 minutes.
The system automatically switches off
approximately 35 minutes after it is set to
level 1.
Switching the rear-seat heating on/off X
To switch on: press button:repeatedly
until the desired heating level is set.
X To switch off: press button:repeatedly
until all the indicator lamps go out.
i The system automatically switches from
level 3to level 2after approximately
8 minutes.
The system automatically switches from
level 2to level 1after approximately
10 minutes.
The system automatically switches off
approximately 35 minutes after it is set to
level 1.
Problems with the seat heating If the on-board voltage is too low, the seat
heating is switched off automatically.
X Switch off electrical consumers that you do
not need, such as the rear window
defroster or interior lighting.
If the on-board voltage is only interrupted
briefly, the seat heating will switch back on Seats
89Seats, steering wheel and mirrors Z