XTo deactivate:press the&button on
the SmartKey twice in rapid succession.
The battery check lamp (
Ypage 85) of the
SmartKey flashes twice briefly and lights up
once, then KEYLESS-GO is deactivated.
XTo activate: press any button on the
SmartKey or insert the SmartKey into the
ignition lock.
KEYLESS-GO and all of its associated fea-
tures are available again.
KEYLESS-GO start function
Bear in mind that the engine can be started by
any of the vehicle occupants if there is a
SmartKey in the vehicle.
Changing the settings of the locking
system
You can change the settings of the locking
system. This means that only the driver's door
and the fuel filler flap are unlocked when the
vehicle is unlocked. This is useful if you fre-
quently travel on your own.
XTo change the setting: press and hold
down the %and& buttons simulta-
neously for approximately six seconds until
the battery check lamp flashes twice
(
Ypage 85).
iIf the setting of the locking system is
changed within the signal range of the vehi-
cle, pressing the &or% button:
Rlocks or
Runlocks the vehicle
The SmartKey now functions as follows:
XTo unlock the driver's door: press the
% button once.
XTo unlock centrally: press the%but-
ton twice.
XTo lock centrally: press the&button. The KEYLESS-GO function is changed as fol-
lows:
XTo unlock the driver's door:
touch the
inner surface of the door handle on the
driver's door.
XTo unlock centrally: touch the inner sur-
face of the door handle on the front-
passenger door or the rear door.
XTo lock centrally: touch the outer sensor
surface on one of the door handles
(
Ypage 83).
XTo restore the factory settings: press
and hold d
own the %and& buttons
simultaneously for approximately six sec-
onds until the battery check lamp flashes
twice (
Ypage 85).
Mechanical key
General notes
If the vehicle can no longer be locked or
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 (
Ypage 78).
There are several ways to turn off the alarm:
XTo turn the alarm off with the SmartKey:
press the %or& button on the
SmartKey.
or
XInsert the SmartKey into the ignition lock.
or
XTo deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the igni-
tion lock. The SmartKey must be in the
vehicle.
or
XLock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.
84SmartKey
Opening and closing
ProblemPossible causes/consequences andMSolutions
Vehicles with KEY-
LESS-GO or the KEY-
LESS-GO start func-
tion:the engine cannot
be started using the
Start/Stop button. The
SmartKey is in the vehi-
cle.The vehicle is locked.
XUnlock the vehicle and try to start the vehicle again.
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 85) and replace it if nec-
essary (
Ypage 85).
If this does not work:
XStart your vehicle with the SmartKey in the ignition lock.
There is interference from a powerful source of radio waves.
XStart your vehicle with the SmartKey in the ignition lock.
Doors
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park position P
RStart the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
GWARNING
If persons, particularly children are subjected to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
GWARNING
If objects, luggage or loads are not secured or
not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury, particu-
larly in the event of sudden braking or a sud-
den change in direction.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey.
You should preferably place luggage or loads
in the cargo compartment. Observe the load- ing guidelines (
Ypage 340).
Unlocking and opening doors from
the inside
You can open a door from inside the vehicle
even if it has been locked. You can only open
the rear doors from inside the vehicle if they
are not secured by the child-proof locks
(
Ypage 67).
If the vehicle has previously been locked from
the outside, opening a door from the inside
90Doors
Opening and closing
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. If the tailgate is open when the engine is running, particu-
larly if the vehicle is moving, exhaust fumes
could enter the passenger compartment.
There is a risk of poisoning.
Turn off the engine before opening the tail-
gate. Never drive with the tailgate open.
!The tailgate swings upwards and to the
rear when opened. Therefore, make sure
that there is sufficient clearance above and
behind the tailgate.
iTailgate opening dimensions
(
Ypage 454).
iNotes on the automatic reversing feature
for the tailgate (
Ypage 93).
Opening the tailgate automatically
You can open the tailgate automatically with
the SmartKey or the handle in the tailgate.
XPress and hold the Fbutton on the
SmartKey until the tailgate opens.
or
XIf the tailgate is unlocked, pull the handle
and let it go again immediately.
Closing the tailgate automatically
GWARNING
Parts of the body could become trapped dur-
ing automatic closing of the tailgate. More-
over, people, e.g. children, may be standing in the closing area or may enter the closing area
during the closing process. There is a risk of
injury.
Make sure that nobody is in the vicinity of the
closing area during the closing process.
Use one of the following options to stop the
closing process:
Rpress the Fbutton on the SmartKey.
Rpull or press the remote operating switch
on the driver's door.
Rpress the closing or locking button on the
tailgate.
Rpull the handle on the tailgate
Closing and locking button (example: vehicle with
KEYLESS-GO)
XTo close: press closing button :on the
tailgate.
or
XPress and hold the Fbutton on the
SmartKey until the tailgate closes.
You can release the button as soon as the
tailgate starts to close.
Vehicles with KEYLESS-GO: you can simulta-
neously close and lock the tailgate.
XPress locking button ;on the tailgate.
If a KEYLESS-GO key is detected outside
the vehicle, the tailgate closes and locks.
All the doors must be shut and the Smart-
Key located in the vicinity of the tailgate.
iThe tailgate cannot be opened and closed
with the SmartKey if there is a SmartKey in
the ignition.
If the tailgate touches an object while clos-
ing, the closing procedure is interrupted
and the tailgate reopens.
iIf a KEYLESS-GO key is detected in the
cargo compartment, the tailgate will not
lock.
Cargo compartment95
Opening and closing
Z
XMake sure that the SmartKey is in position1 or 2in the ignition lock.
XTo open fully: press switch:and release.
XTo close fully: pull switch:and release.
XTo stop the closing procedure: press
switch :again.
Both hinged side windows open fully.
iIf 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 simultane-
ously:
Runlock the vehicle
Ropen the side windows
Ropen the hinged side windows
Ropen the sliding sunroof or the panorama
roof with power tilt/sliding panel and the
roller sunblinds
Rswitch on the seat ventilation for the driv-
er's seat
iThe convenience opening feature can
only be operated using the SmartKey. The
SmartKey must be close to the vehicle. For
vehicles without KEYLESS-GO, the Smart-
Key must be near the driver's door handle. The "convenience opening" feature is also
available on unlocked vehicles.
Convenience opening
XVehicles without KEYLESS-GO:
point the
tip of the SmartKey at the door handle on
the driver's door.
XPress and hold the %button 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.
XPress and hold the %button again until
the panorama roof with power tilt/sliding
panel is in the desired position.
XTo interrupt convenience opening:
release the %button.
Convenience closing feature
Important safety notes
GWARNING
When the convenience closing feature is oper- ating, parts of the body could become trapped
in the closing area of the side window and the
sliding sunroof. There is a risk of injury.
Observe the complete closing procedure
when the convenience closing feature is oper-
ating. Make sure that no body parts are in
close proximity during the closing procedure.
When you lock the vehicle, you can simulta-
neously close the:
Rclose the side windows
Rclose the hinged side windows
Rclose 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.
Side windows99
Opening and closing
Z
Problems with the steering wheel heating
ProblemPossible causes/consequences andMSolutions
The steering wheel
heating has switched
off prematurely or can-
not be switched on.The on-board voltage is too low because too many electrical con-
sumers are switched on.
XSwitch off electrical consumers that you do not need, such as
the rear window defroster or interior lighting.
EASY-ENTRY/EXIT feature
Important safety notes
GWARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel, you and other vehicle
occupants – particularly children – could
become trapped. There is a risk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has
any body parts in the sweep of the steering
wheel.
Move the steering wheel adjustment lever if
there is a risk of entrapment by the steering
wheel. The adjustment process is stopped.
Press one of the memory function position
buttons. This function is only available on
vehicles with memory function.
GWARNING
If children activate the EASY-ENTRY/EXIT fea-
ture, they can become trapped, particularly
when unattended. 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.
GWARNING
If you drive off while the EASY-ENTRY/EXIT
feature is making adjustments, you could lose
control of the vehicle. There is a risk of an
accident.
Always wait until the adjustment process is
complete before driving off.
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 com-
puter (
Ypage 285).
Position of the steering wheel when the
EASY-ENTRY/EXIT feature is active
The steering wheel swings upwards when
you:
Rremove the SmartKey from the ignition lock
Ropen the driver's door with KEYLESS-GO in
position 1
Ropen the driver's door and the SmartKey is
in position 0or 1in the ignition lock
iThe steering wheel only moves upwards if
it has not already reached the upper stop.
Position of the steering wheel for driv-
ing
The steering wheel is moved to the last selec-
ted position when:
Rthe driver's door is closed
Ryou insert the SmartKey into the ignition
lock
or
Ryou 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.
Steering wheel123
Seats, steering wheel and mirrors
Z
Problems with the windshield wipers
ProblemPossible causes/consequences andMSolutions
The windshield wipers
are jammed.Leaves or snow, for example, may be obstructing the windshield
wiper movement. The wiper motor has been deactivated.
XFor safety reasons, you should remove the SmartKey from the
ignition lock.
or
XSwitch off the engine using the Start/Stop button and open the driver's door.
XRemove the cause of the obstruction.
XSwitch the windshield wipers back on.
The windshield wipers
fail completely.The windshield wiper drive is malfunctioning.
XSelect another wiper speed on the combination switch.
XHave the windshield wipers checked at a qualified specialist
workshop.
142Windshield wipers
Lights and windshield wipers
=Directs the airflow through the rear air vents
?Directs the airflow through the footwell vents
Optimum use of dual-zone climate
control
The following contains notes and recommen-
dations on optimum use of dual-zone climate
control.
RYou can switch on climate control by using
theà and¿ orà andÁ but-
tons. The indicator lamps in the Ãand
¿ buttons or the ÃandÁ but-
tons light up.
RSet the temperature to 72 ‡ (22 †).
ROnly use the "Windshield defrosting" func-
tion briefly until the windshield is clear
again.
ROnly use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or
when in a tunnel. The windows could oth-
erwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
RUse the ZONE function to adopt the tem-
perature settings on the driver's side for
the front-passenger side as well. The indi-
cator lamp above the ábutton goes
out.
RVehicles with COMAND: if you change the
settings of the climate control system, the
climate status display appears for approx-
imately three seconds at the bottom of the
screen in the COMAND display (see sepa-
rate operating instructions). You will see
the current settings of the various climate
control functions.
During automa tic e
ngine switch-off, the cli-
mate control system only operates at a
reduced capacity. If you require the full cli-
mate control output, you can switch off the
ECO start/stop function by pressing the ECO
button (
Ypage 170).
Overview of climatecont rol systems147
Climate control
QSwitches the rear climate control on/off (Ypage 152)
RReduces the airflow (Ypage 156)
Optimum use of 3-zone automatic cli-
mate control
The following contains instructions and rec-
ommendations to enable you to get the most
out of your dual-zone automatic climate con-trol.
RYou can switch on climate control by using
the à and¿ orà andÁ but-
tons. The indicator lamps in the Ãand
¿ orà andÁ buttons light up.
RIn automatic mode, you can also use the
ñbutton to set a climate mode
(FOCUS/MEDIUM/DIFFUSE). The
MEDIUM level is recommended.
RSet the temperature to 72 ‡ (22 †).
ROnly use the "Windshield defrosting" func-
tion briefly until the windshield is clear
again.
ROnly use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or
when in a tunnel. The windows could oth-
erwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
RUse the ZONE function to adopt the tem-
perature settings on the driver's side for
the front-passenger side and the rear com- partment as well. The indicator lamp above
the á button goes out.
RUse the residual heat function if you want to
heat or ventilate the vehicle interior when
the ignition is switched off. The residual
heat function can only be activated or deac-
tivated with the ignition switched off.
RVehicles with COMAND: if you change the
settings of the climate control sy
stem, the
climate status display appears for approx-
imately three seconds at the bottom of the
screen in the COMAND display (see sepa-
rate operating instructions). You will see
the current settings of the various climate
control functions. During automatic engine switch-off, the cli-
mate control system only operates at a
reduced capacity. If you require the full cli-
mate control output, you can switch off the
ECO start/stop function by pressing the ECO
button (
Ypage 170).
Operating the climate control sys-
tems
Activating/deactivating climate con-
trol
General notes
When the climate control is switched off, the
air supply and air circulation are also
switched off. The windows could fog up.
Therefore, switch off climate control only
briefly
iSwitch on climate control primarily using
the à button (
Ypage 154).
In the rear compartment, you can also switch
climate control on and off using the Ãand
^ buttons.
Activating or deactivating
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 165).
XTo activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to
automatic mode.
or
XPress the ^button.
The indicator lamp in the ^button goes
out. The previously selected settings are
restored.
XTo deactivate: press the^button.
The indicator lamp in the ^button lights
up.
152Operating the climate control systems
Climate control