
i
If the alarm stays on for more than
30 seconds, the mbrace emergency call
system (USA only) or the Tele Aid system
(Canada only) initiates a call to the
Customer Assistance Center
automatically. The Tele Aid system will
initiate the call provided that:
R you have subscribed to the Tele Aid
service.
R the Tele Aid service has been activated
properly.
R the required mobile phone, power
supply
and GPS are available. X
To arm: lock the vehicle with the SmartKey
or KEYLESS-GO.
Indicator lamp 0043 flashes. The alarm
system is armed after approximately
15 seconds.
X To disarm: unlock the vehicle with the
SmartKey or KEYLESS-GO.
X To stop the alarm using the SmartKey:
insert the SmartKey into the ignition lock.
The alarm is switched off.
or
X Press the 0036
or 0037 button on the
SmartKey.
The alarm is switched off. X
To stop the alarm using KEYLESS-GO:
grasp the outside door handle. The
SmartKey must be outside the vehicle.
The alarm is switched off.
or
X Press the Start/Stop button on the
dashboard. The SmartKey must be inside
the vehicle.
The alarm is switched off.72
Theft deterrent locking system
Safety

and the fuel filler flap are unlocked when the
vehicle is unlocked. This is useful if you
frequently travel on your own.
X
To change the setting: press and hold
down the 0036 and 0037 buttons
simultaneously for approximately six
seconds until the battery check lamp
(Y page 77) flashes twice.
i If the setting of the locking system is
changed within the signal range of the
vehicle, pressing the
0037
or
0036
button:
R locks or
R unlocks the vehicle
The SmartKey now functions as follows:
X To unlock the driver's door: press the
0036 button once.
X To unlock centrally: press the 0036
button twice.
X To lock centrally: press the 0037 button.
The KEYLESS-GO function is changed as
follows:
X To unlock the driver's door: touch the
inner surface of the door handle on the
driver's door.
X To unlock centrally: touch the inner
surface of the door handle on the front-
passenger door or the rear door.
X To lock centrally: touch the outer sensor
surface on one of the door handles
(Y page 75).
X To restore the factory settings: press
and hold down the 0036
and 0037 buttons
simultaneously for approximately six
seconds until the battery check lamp
flashes twice. Mechanical key
General notes If the vehicle can no longer be locked or
unlocked with the SmartKey
or
the KEYLESS-
GO key, 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 71).
X To end the
alarm: insert the SmartKey into
the ignition lock.
i With KEYLESS-GO: remove the Start/
Stop button from the ignition lock
beforehand.
If
you unlock the vehicle
using the mechanical
key, the fuel filler flap will not be unlocked
automatically.
Removing the mechanical key X
Push release catch 0043 in the direction of
the arrow and at the same time remove
mechanical key 0044 from the SmartKey. SmartKey battery
Important safety notes Mercedes-Benz recommends that you have
the batteries replaced at
a
qualified specialist
workshop. G
WARNING
Batteries contain toxic and corrosive
substances. If batteries
are swallowed,
it can
result in severe health problems. There is a
risk of fatal injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately. 76
SmartKey
Opening and closing

G
WARNING
The reversing feature does not react:
R to soft, light and thin objects, e.g. small
fingers
R over the last 4 mm
of the closing movement
R during resetting
R when closing the side window 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
someone becomes trapped, press the switch
to open the side window again. Opening and closing the side
windows
0043
Front left
0044 Front right
0087 Rear right
0085 Rear left
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
precedence.
i The side windows cannot be operated
from the rear when the override feature for
the side windows is activated ( Y page 63).X
Turn the SmartKey to position 1 or 2 in the
ignition lock.
X To open:
press the corresponding switch.
X To close: pull the corresponding switch.
i If you press the switch 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.
i You can continue to operate the side
windows 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. Convenience opening
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 panorama roof with power tilt/
sliding panel and the roller sunblinds
i The convenience opening feature can
only be operated 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 0036 button until the
side windows and 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. Side windows
87Opening and closing Z

Opening and closing
Overhead control panel
0043
To open
0044 To open
0087 To close
X Turn the SmartKey to position 1 or
2 in the
ignition lock.
X Press or pull the 0057
switch in the
corresponding direction.
i If you press the 0057 switch 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.
Resetting the sliding sunroof and the
roller sunblinds Reset the sliding sunroof and the roller
sunblinds if the sliding sunroof or the roller
sunblinds do not move smoothly.
X
Turn the SmartKey to position 1 or 2 in the
ignition lock.
X Press the
0057 button to the point of
resistance in the direction of
arrow 0044 until
the sliding sunroof is open approximately
4 in (10 cm).
X Pull the 0057 switch repeatedly to the
point
of resistance in the direction of arrow 0087
until the sliding sunroof is fully closed.
X Keep the 0057 switch pulled for an
additional second. X
Press the 0057 button to the point of
resistance in the direction of
arrow 0044 until
the roller sunblinds are open approximately
4 in (10 cm).
X Pull the 0057 switch
repeatedly to
the
point
of resistance in the direction of arrow 0087
until the roller sunblinds are fully closed.
X Keep the 0057 switch pulled for an
additional second.
X Make sure that the sliding sunroof and the
roller sunblinds can be fully opened and
closed again (
Y
page 91).
X If this is not the case, repeat the steps
above again.
! If the sliding sunroof and the roller
sunblinds cannot be fully
opened
or closed
after resetting, contact a qualified
specialist workshop. Problems with the sliding sunroof
Problem: the sunroof cannot be closed
and you cannot see the cause. G
WARNING
If you close the sliding sunroof again
immediately after it has been blocked or
reset, the sliding sunroof closes with
increased or maximum force. The reversing
feature is then not active. Parts of the body
could be trapped in the closing area in the
process. This poses an increased
risk of injury
or even fatal injury.
Make sure that no parts of the body are in the
closing area.
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. 92
Sliding sunroof
Opening and closing

Steering wheel
Important safety notes
G
WARNING
Do not adjust the steering wheel while driving.
Adjusting the steering wheel while
driving, or
driving without the steering wheel adjustment
feature locked could cause the driver to lose
control of the vehicle.
The electrical steering wheel adjustment
feature can be operated at any time.
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. Adjusting the steering wheel
manually
0043
Release lever
0044 To adjust the steering wheel height
0087 To adjust the steering wheel position
(fore-and-aft adjustment)
X Push release lever 0043 down completely.
The steering column is unlocked.
X Adjust the steering wheel to the desired
position.
X Push release lever 0043 up completely.
The steering column is locked.
X Check if the steering column is locked.
When doing so, try to push the steering
wheel up or down or try to move it in the
fore-and-aft direction. Adjusting the steering wheel
electrically
0043
To adjust the steering wheel height
0044 To adjust the steering wheel position
(fore-and-aft adjustment)
i Further related subjects:
R EASY-ENTRY/EXIT feature
(Y page 102)
R Storing settings ( Y page 106) EASY-ENTRY/EXIT feature
Important safety notes G
WARNING
Make sure that nobody can become trapped
when you activate the EASY-ENTRY/EXIT
feature.
If there is a risk of someone becoming
trapped, stop the adjustment procedure. To
halt the procedure:
R press the steering column adjustment
button.
R press one of the memory function position
buttons.
The steering column stops moving
immediately.
Do not keep the memory function position
button pressed as this will start the memory
function and set the steering wheel and seat
in motion.
Do not leave children unattended in the
vehicle. They could open the
driver's door and102
Steering wheel
Seats, steering wheel and mirrors

thereby unintentionally activate the EASY-
ENTRY/EXIT feature and become trapped.
G
WARNING
Let the system complete the adjustment
procedure before setting the vehicle in
motion. All steering wheel adjustment must
be completed before setting the vehicle in
motion. Driving off with the steering wheel
still adjusting could cause the driver to lose
control of the vehicle.
The EASY-ENTRY/EXIT feature makes getting
in and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature in the on-board
computer (
Y page 229).
Position of the steering wheel when the
EASY-ENTRY/EXIT feature is active The steering wheel swings upwards when
you:
R
remove the SmartKey from the
ignition lock
R open the driver's door and KEYLESS-GO is
in position 1
R open the driver's door and the SmartKey is
in position 0 or 1 in the ignition lock
i The steering wheel only moves upwards if
it has not already reached the upper end
stop.
Position of the steering wheel for
driving The steering wheel is moved to the last
selected position when:
R
the driver's door is closed.
R you insert the SmartKey into the ignition
lock.
or
R you press the Start/Stop button once on
vehicles with KEYLESS-GO.
When you close the driver's door with the
ignition switched on, the steering wheel is also automatically moved to the previously
set position.
The last position of the steering wheel is
stored when you switch off the ignition or
when you store the setting with the memory
function (
Y page 106).
Crash-responsive EASY-EXIT feature If the crash-responsive EASY-EXIT feature is
triggered in an accident,
the
steering column
will move upwards when the driver's door is
opened. This occurs irrespective of the
position of the SmartKey in the ignition lock.
This makes it easier to exit the vehicle and
rescue the occupants.
The crash-responsive EASY-EXIT feature is
only operational if the EASY-EXIT/ENTRY
feature is activated in the on-board computer. Mirrors
Rear-view mirror
X
Anti-glare mode: flick anti-glare lever 0043
forwards or back. Exterior mirrors
Adjusting the exterior mirrors G
WARNING
The exterior mirrors reduce the size of the
image. Objects are actually closer than they
appear. You could misjudge the
distance from
vehicles driving behind and cause an Mirrors
103
Seats, steering wheel and mirrors
Z

Never fold a windshield wiper arm without
a wiper blade back onto the windshield/
rear window.
Hold the windshield wiper
arm
firmly when
you change the wiper blade. If you release
the wiper arm without a wiper blade and it
falls onto the windshield/rear window, the
windshield/rear window may be damaged
by the force of the impact.
Mercedes-Benz recommends that you have
the wiper blades changed at a qualified
specialist workshop.
! To avoid damaging the wiper blades,
make sure that you touch only the wiper
arm of the wiper.
Changing the windshield wiper blades Moving the wiper blades to a vertical
position
!
Before changing the wiper blades,
always
set the wiper arms to a vertical position
using the combination switch. There is
otherwise a risk of damaging the hood.
Vehicles without KEYLESS-GO
X Turn the SmartKey to position 1 or 2 in the
ignition lock.
X Set the windshield wipers to
position
00AA.
X When the wiper arms have reached a
vertical position, turn the SmartKey to
position 0 and remove it from the ignition
lock.
Vehicles with KEYLESS-GO
X Switch off the engine.
X Remove your foot from the brake pedal.
X Set the windshield wipers to
position 00AA.
X Press the Start/Stop button repeatedly
until the windshield wipers start.
X When the wiper arms have reached a
vertical position, press the Start/Stop
button. Removing the wiper blades
X
Fold the wiper arm away from the
windshield until it engages.
X Set the wiper blade at right angles to the
wiper arm. X
Remove the wiper blade from the retaining
pin on the wiper arm
in the direction of the
arrow.
Installing the wiper blades
X Push the new wiper blade onto the
retaining pin on the wiper arm in the
opposite direction to the arrow.
Make sure that the wiper blade slides fully
onto the retaining pin on the wiper arm.
X Turn the wiper blade parallel to the wiper
arm.
X Fold the wiper arm back onto the
windshield.
Replacing the rear window wiper blade Removing the wiper blades122
Windshield wipers
Lights and windshield wipers

Problems with the windshield wipers
Problem Possible causes/consequences and
0050 SolutionsThe windshield wipers
are jammed. Leaves or snow, for example, may be obstructing the windshield
wiper movement. The wiper motor has been deactivated.
X
For safety reasons, you should remove the SmartKey from the
ignition lock.
or
X Switch off the engine using the Start/Stop button and open the
driver's door.
X Remove the cause of the obstruction.
X Switch the windshield wipers back on. The windshield wipers
fail completely. The windshield wiper drive is malfunctioning.
X
Select another wiper speed on the combination switch.
X Have the windshield wipers checked at a qualified specialist
workshop. The spray nozzles are
misaligned. The windshield washer fluid from the spray nozzles no longer hits
the center of the windshield. The spray nozzles are misaligned.
X
Have the spray nozzles adjusted at a qualified specialist
workshop.124
Windshield wipersLights and windshield wipers