Keys, doors and windows25
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
1. Remove the cover.
2. Extract the flat battery from its location.
3. Replace battery with a battery ofthe same type. Pay attention to
the installation position.
4. Clip the cover in place.
Fault
If the central locking cannot be
operated or the engine cannot be
started, the cause may be one of the
following:
● Fault in electronic key.
● Electronic key is out of reception range.
● The battery voltage is too low. ● Overload of the central locking system by operating at frequent
intervals, the power supply is
interrupted for a short time.
● Interference from higher-power radio waves from other sources.
To rectify the cause of the fault,
change the position of the electronic
key.
Manual unlocking 3 25.Central locking system
Unlocks and locks doors, load
compartment and fuel filler flap.
A pull on an interior door handle
unlocks and opens the respective
door.
Note
In the event of an accident in which
airbags or belt pretensioners are
deployed, the vehicle is
automatically unlocked.
Note
A short time after unlocking with the
remote control the doors are locked
automatically if no door has been
opened. A precondition is that the
setting is activated in the vehicle
personalisation 3 124.
Selective unlocking
Selective unlocking allows you to
unlock either the front doors and the
fuel filler flap or the sliding doors, the
rear doors / the tailgate. Selective
unlocking has to be configured.
Keys, doors and windows37Anti-theft alarm system9Warning
Do not use the system if there are
people in the vehicle! The doorscannot be unlocked from the
inside.
The anti-theft alarm system has been designed to protect the vehicle
against theft and break-ins.
The anti-theft alarm system is
combined with the anti-theft locking
system.
The system monitors doors, tailgate,
bonnet and the passenger
compartment.
Depending on the version of the
vehicle, it may not monitor the
adjoining load compartment.
Activation Ignition must be switched off. All
doors must be closed and the
electronic key must not remain in the
vehicle. Otherwise the system cannot
be activated.
● Radio remote control: Monitoring
of the doors, the tailgate and the
bonnet is activated 5 seconds
after locking the vehicle by
pressing e. Monitoring of the
passenger compartment is
activated 45 seconds after
locking the vehicle by pressing e.
● Electronic key system: Monitoring of the doors, the
tailgate and the bonnet is
activated 5 seconds after locking
the vehicle by pressing with a finger or thumb on one of the front
door handles at the markings. Monitoring of the passenger
compartment is activated
45 seconds after locking the
vehicle by pressing with a finger
or thumb on one of the front door handles at the markings.
Activation is confirmed by the flashing
of the status LED and coming on of
the turn lights for a short time.
If a door or the tailgate is not correctly closed and the vehicle is locked via
remote control or electronic key
system, the vehicle remainsunlocked. However, the anti-theft
alarm system will be activated after
45 seconds.
Note
Changes to the vehicle interior such
as the use of seat covers and open
windows, could impair the function
of passenger compartment
monitoring.
Activation without monitoring of
passenger compartment
Switch off the monitoring of
passenger compartment when
animals are being left in the vehicle,
because of high volume ultrasonic
Instruments and controls97Rear window wiper and
washer
Rear window wiper0:offS:intermittent operationR:rear window washer
Do not use if the rear window is
frozen.
Switch off in car washes.
The rear window wiper comes on
automatically when the windscreen
wiper is switched on and reverse gear
is engaged.
Activation or deactivation of this
function can be changed in the
Vehicle personalisation menu 3 124.
Rear window washer
Set to R.
Washer fluid is sprayed onto the rear
window and the wiper wipes a few
times.
The rear window washer system is
deactivated when the fluid level is
low.
Washer fluid 3 216.
Outside temperature
Illustration shows an example.
If outside temperature drops to 3 °C,
a warning message is displayed in the Driver Information Centre.
9 Warning
The road surface may already be
icy even though the display
indicates a few degrees above
0 °C.
Instruments and controls109Engine oil level monitor
The state of the engine oil level is
displayed in the Driver Information
Centre for a few seconds following
the service information after switching on the ignition.
A proper state of engine oil level is
confirmed.
If engine oil level is low, T flashes
and warning message is indicated in
the Driver Information Centre.
Depending on the version, D
flashes in the Driver Information
Centre. Confirm engine oil level by
using the oil dipstick and top up
engine oil respectively.
Engine oil 3 214.
A fault of measurement is indicated
by E or a message in the Driver
Information Centre together with
T . Check engine oil level manually
by using the dipstick.
Service display
The service system informs when to
change the engine oil and filter or a
vehicle service is required. Based ondriving conditions, the interval at
which an engine oil and filter change
is required can vary considerably.
Service information 3 259.
A required service due is displayed in the Driver Information Centre for
several seconds after switching on
the ignition.
If no service is required for the next
3000 km or more no service
information appears in the display.
If service is required within the next
3000 km, A illuminates temporary
as reminder. Simultaneously, the
remaining distance or time duration is
indicated for several seconds.
Depending on the version, the
distance travelled since the due date
is indicated in the Driver Information
Centre.
If service is required in less than
1000 km, A flashes and then
illuminates permanently. Remaining distance or time duration is indicated for several seconds. Simultaneously,
the remaining distance or time
duration is indicated for several
seconds. Depending on the version,the distance travelled since the due
date is indicated in the Driver
Information Centre.
Overdued service is indicated by a
message in the Driver Information
Centre which indicates the overdued
distance. A flashes and then
illuminates permanently until service
is executed. Additionally, the control
indicator C or SERVICE
illuminates.
Reset of service interval After each service, the service
indicator must be reset to ensure
proper functionality. It is
recommended to seek the assistance
of a workshop.
If service is executed by yourself,
operate as following:
● switch off ignition
● press and hold F, G
or CHECK
● switch on ignition, the distance indication begins a countdown
● when the display indicates =0,
release the button and
A disappears
Instruments and controls123UnitsUnits can be changed in vehicle
personalisation menu 3 124.
Care of head-up display
Clean the screen of the head-up
display with a soft cloth sprayed with
glass cleaner. Wipe the lens gently,
then dry it.
System limitations Head-up display may not operate
properly when:
● The lens in the instrument panel is covered by objects or not
clean.
● Display brightness is too dim or bright.
● Image is not adjusted to the proper height.
● The driver wears polarized sunglasses.
If the head-up image is not correct for other reasons, contact a workshop.Vehicle messages
Messages are indicated in the Driver
Information Centre, in some cases
together with a warning chime.
Press to confirm a message.
Vehicle and service messages The vehicle messages are displayed
as text. Follow the instructions given
in the messages.
Messages in the Info Display
Some important messages may
appear additionally in the
Info Display. Some messages only pop-up for a few seconds.
Warning chimes
If several warnings appear at the same time, only one warning chimewill sound.
When starting the engine or whilst driving
● If a seat belt is not fastened.
● If a door or the tailgate is not fully
closed.
● If a certain speed is exceeded with parking brake applied.
● If a programmed speed or speed
limit is exceeded.
● If a warning message appears in the Driver Information Centre.
● If the electronic key is not in the passenger compartment.
● If the parking assist detects an object.
Instruments and controls125●Comfort
Ambient lighting : Adjusts the
brightness of the ambient
lighting.
Rear wiper in reverse gear :
Activates or deactivates
automatic switching on of the
rear window wiper when reverse
gear is engaged.
● Vehicle
Unlocking boot only : Activation /
deactivation.
Plip action : Driver / all doors.
● Security
Fatigue Detection system :
Activates or deactivates the
driver drowsiness system.
● Driving assistance
Speed recommendation :
Activates or deactivates the
function.Multimedia
Press : to open settings menu.
Unit settings
Select System configuration .
Change units for Distance and fuel
consumption and Temperature .
Language settings
Select Language .
Change language by touching the
respective entry.
Driving function
Press _.
Select Driving function .
In the corresponding submenus the
following settings can be changed:
● Parking sensors : Activates or
deactivates the parking assist sensors.
● Blind spot sensors : Activates or
deactivates side blind spot alert.
● Under-inflation initialization :
Initialises the tyre under-inflation
detection system.
● Diagnostic : Shows alert
messages of the diagnostic
system.
Memorising of preset speeds
This feature enables to define and
memorise up to six speed settings for
cruise control and speed limiter. By
default, a few speeds are already
memorised.
● Press _.
● Select Adjusting speeds .
● Select Cruise control or Speed
limiter .
● Select the speed setting to be changed.
126Instruments and controls●Type the new speed value via the
keypad and confirm with A /
OK .
● Confirm with A / OK once more
to exit the menu.
Vehicle settings
Press _.
Select Vehicle settings .
In the corresponding submenus the following settings can be changed:
● Parking
Prevention of door mirror folding :
Activates or deactivates the
automatic folding of the exterior
mirrors.
Rear wiper in reverse : Activates
or deactivates automatic
switching on of the rear window
wiper when reverse gear is
engaged.
● Headlights
Guide-me-home lighting :
Activates or deactivates the
function and adjusts its duration.Welcome lighting : Activates or
deactivates the function and
adjusts its duration.
Directional headlamps : Activates
or deactivates the cornering
lights.
● Comfort
Mood lighting : Adjusts the
brightness of the ambient
lighting.
● Safety
Speed reading/recommendation :
Activates or deactivates the
speed limit information by traffic sign recognition.
Active safety brake : Activates or
deactivates active emergency
braking, the alert distance for risk of collision can be selected.
Mirror adaptation in reverse :
Adjusts the exterior mirrors if
reverse gear is engaged to
facilitate pavement visibility.
Driver’s attention warning :
Activates or deactivates the
driver drowsiness system.Multimedia Navi
Press : to open settings menu.
Unit settings
Select System settings in the options
menu.
Change units for Distance and fuel
consumption and Temperature .
Confirm with A / OK .
Language settings
Select Languages .
Change language by touching the respective entry.
Confirm with A / OK .
Driving and operating185Switching off the system
Turn to 0 to switch off the system. The
symbol 5 and a message are
displayed in the Driver Information
Centre.
Switching off the ignition deletes the
stored set speed.
Driver's attention ● Use the adaptive cruise control carefully on bends or mountain
roads, as it can lose the vehicle
ahead and needs time to detect it again.
● Do not use the system on slippery roads as it can create
rapid changes in tyre traction
(wheel spinning), so that the
control of the vehicle can be lost.
● Do not use the system when the spare wheel is in use.
System limits9 Warning
The system's automatic brake
force does not permit hard braking and the braking level may not be
sufficient to avoid a collision.
● The control range is limited to a maximum deviation of 30 km/h
between the set speed and the
speed of the vehicle ahead.
● After a sudden lane change, the system needs a certain time to
detect the next preceding
vehicle. So if a new vehicle is
detected, the system may
accelerate instead of braking.
● The adaptive cruise control does ignore the oncoming traffic.
● The adaptive cruise control does not consider pedestrians and
animals for braking and driving
off.
● The adaptive cruise control considers stopped vehicles onlyat low speed.
● Do not use the adaptive cruise control when towing a trailer.
● Do not use the adaptive cruise control on roads with an incline ofmore than 10%.
Bends
The adaptive cruise control calculates
a predicted path based on the
centrifugal force. This predicted path
considers the current bend
characteristic, but cannot consider a
future bend change. The system may lose the current vehicle ahead or
consider a vehicle which is not in the