Keys, doors and windows23Key with foldaway key section
Press button to extend. To fold the
key, first press the button.
Radio remote control
Enables operation of the following
functions via the use of the remote control buttons:
● central locking system 3 25
● anti-theft locking system 3 32
● anti-theft alarm system 3 33
● tailgate unlocking 3 25
● power windows 3 38
● mirrors folding
The remote control has a range of up
to 100 metres , but may also be much
less due to external influences. The
hazard warning flashers confirm
operation.
Handle with care, protect from
moisture and high temperatures and
avoid unnecessary operation.
Replacing battery in radio remote
control
Replace the battery as soon as the
range reduces.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
24Keys, doors and windows
1. To unclip the cover insert a smallscrewdriver between the back
cover and the remote control.
2. Remove the back cover.
3. Extract the flat battery from its location.
4. Replace battery with a battery of the same type. Pay attention to
the installation position.
5. Clip the cover in place.
Fault
If the central locking system cannot
be operated with the radio remote
control, the cause may be one of the
following:
● Fault in radio remote control.
● The range is exceeded.
● The battery voltage is too low.
● Frequent, repeated operation of the radio remote control while not
in range, which will require re-
synchronisation.
● 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.
Manual unlocking 3 25.Electronic key system
Enables a keyless operation of the
following functions:
● central locking system 3 25
● ignition switching on and starting the engine 3 136
The electronic key simply needs to be on the driver's person.
Additionally, the electronic key
includes the functionality of the radio
remote control 3 23.
Handle with care, protect from
moisture and high temperatures and
avoid unnecessary operation.
Keys, doors and windows25Replacing battery in electronic
key
Replace the battery as soon as the
system no longer operates properly or the range is reduced. The need for battery replacement is indicated by a
message in the Driver Information
Centre 3 102.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
1. To unclip the cover insert a small screwdriver in the cutout.
2. Remove the cover.
3. Extract the flat battery from its location.
4. Replace battery with a battery of the same type. Pay attention to
the installation position.
5. 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 frequentintervals, 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.
Pull an interior door handle fully to
unlock and open the respective door.
Keys, doors and windows29Operation with the key in case of
a central locking system fault
In case of a fault, e.g. vehicle battery
or remote control/electronic key
battery is discharged, the driver's
door can be locked or unlocked with
the mechanical key.
Manual unlocking
Electronic key: press and hold the
latch to extract the integral key.
Manually unlock the driver's door by
inserting and turning the key in the
lock cylinder.
The other doors can be opened by
pulling the interior handle. The load
compartment and fuel filler flap will
possibly not be unlocked.
By switching on the ignition, the anti- theft locking system is deactivated.
Manual locking
Manually lock the driver's door by
inserting and turning the key in the lock cylinder.
To lock the other doors, first remove
the black cover by inserting a key and turning clockwise.
Insert key into the recess and move
latch sideways.
Remove key and attach the black
cover.
The fuel filler flap and tailgate are
possibly not locked.
Automatic locking Automatic locking after driving off This system allows automatic locking
of the doors as soon as the speed of
the vehicle exceeds 10 km/h.
Keys, doors and windows35AlarmWhen triggered, the alarm hornsounds and the hazard warning lights flash simultaneously. The number
and duration of alarm signals are
stipulated by legislation.
The anti-theft alarm system can be
deactivated by pressing c, by
pressing the switch on the door
handle with electronic key system or
switching on the ignition.
The anti-theft alarm system can be
deactivated by pressing c, by
pressing on one of the front door
handles at the markings with
electronic key system or switching on
the ignition.
A triggered alarm, which has not been interrupted by the driver, will be
indicated by the hazard warning
lights. They will flash quickly three
times the next time the vehicle is unlocked with the radio remote
control. Additionally a warning
message is displayed in the Driver
Information Centre after switching on
the ignition.
Vehicle messages 3 102.If the vehicle's battery is to be
disconnected (e.g. for maintenance
work), the alarm siren must be
deactivated as follows: switch the
ignition on then off, then disconnect
the vehicle's battery within
15 seconds.
Immobiliser The system is part of the ignition
switch and checks whether the
vehicle is allowed to be started with the key being used.
The immobiliser is activated
automatically after the key has been
removed from the ignition switch.
Note
Radio Frequency Identification
(RFID) tags may cause interference
with the key. Do not have it placed near the key when starting the
vehicle.
Note
The immobiliser does not lock the doors. You should always lock the
vehicle after leaving it and switch on the anti-theft alarm system 3 25,
3 33.Exterior mirrors
Convex shape
The convex exterior mirror on the
driver's side contains an aspherical
area and reduces blind spots. The
shape of the mirror makes objects
appear smaller, which will affect the
ability to estimate distances.
Side blind spot alert 3 169.
Electric adjustment
Select the relevant exterior mirror by
pushing the mirror button to the left or right.
Keys, doors and windows39Child safety system for rear
windows
Press V to deactivate rear door
power windows; the LED illuminates.
To activate, press V again.
Operating windows from outside
The windows can be operated
remotely from outside the vehicle.
Press and hold c to open windows.
Press and hold e to close windows.
Release button to stop window
movement.
If the windows are fully opened or
closed, the hazard warning lights will
flash twice.
Overload
If the windows are repeatedly
operated within short intervals, the
window operation is disabled for
some time.
Initialising the power windows
If the windows cannot be closed
automatically (e.g. after
disconnecting the vehicle battery), a
warning message is displayed in the
Driver Information Centre.
Vehicle messages 3 102.
Activate the window electronics as
follows:
1. Close doors.
2. Switch on ignition.
3. Pull switch until the window is closed and keep pulling for
additional two seconds.
4. Push switch until the window is completely open and keep
pushing for additional
two seconds.
5. Repeat for each window.
Heated rear window Operated by pressing b together with
heated exterior mirrors.
Heating works with the engine
running and is switched off
automatically after a short time.
74Instruments and controlsInstruments and
controlsControls ....................................... 75
Steering wheel adjustment ........75
Steering wheel controls .............75
Heated steering wheel ...............75
Horn ........................................... 76
Windscreen wiper/washer .........76
Rear window wiper/washer .......78
Outside temperature ..................78
Clock ......................................... 79
Power outlets ............................. 79
Inductive charging .....................80
Cigarette lighter ......................... 81
Ashtrays .................................... 81
Warning lights, gauges and indi‐ cators ........................................... 82
Instrument cluster ......................82
Speedometer ............................. 85
Odometer .................................. 86
Trip odometer ............................ 86
Tachometer ............................... 86
Fuel gauge ................................ 87
Fuel selector .............................. 87
Engine coolant temperature gauge ....................................... 88Engine oil level monitor.............89
Service display .......................... 89
Control indicators ......................90
Turn signal ................................. 90
Seat belt reminder .....................90
Airbag and belt tensioners .........91
Airbag deactivation ....................91
Charging system .......................91
Malfunction indicator light ..........91
Service vehicle soon .................92
Stop engine ............................... 92
System check ............................ 92
Brake and clutch system ...........92
Antilock brake system (ABS) .....92
Gear shifting .............................. 93
Lane departure warning ............93
Electronic Stability Control and Traction Control system ...........93
Electronic Stability Control and Traction Control system off ......93
Engine coolant temperature ......93
Preheating ................................. 94
Diesel particle filter ....................94
AdBlue ....................................... 94
Deflation detection system ........94
Engine oil pressure ....................94
Low fuel ..................................... 95
Autostop .................................... 95
Exterior light .............................. 95
High beam ................................. 95High beam assist.......................95
Low beam .................................. 95
Fog light ..................................... 95
Rear fog light ............................. 95
Rain sensor ............................... 95
Cruise control ............................ 95
Speed limiter ............................. 96
Traffic sign assistant ..................96
Door open .................................. 96
Information displays .....................96
Driver Information Centre ..........96
Info display ................................ 98
Head-up display ......................100
Vehicle messages ......................102
Warning chimes .......................102
Battery voltage ........................ 102
Vehicle personalisation ..............103
Telematics service .....................106
OnStar ..................................... 106
Instruments and controls799Warning
The road surface may already be
icy even though the display
indicates a few degrees above
0 °C.
Clock
Date and time are shown in the
Info-Display 3 98.
Setting date and time, see
Infotainment manual.
Power outlets
A 12 Volt power outlet is located in the
centre console.
Another power outlet is located in the console between the front seats.
Do not exceed the maximum power
consumption of 120 watts.
With ignition off, the power outlet is
deactivated. Additionally, the power outlet is deactivated in the event of
low vehicle battery voltage.
Electrical accessories that are
connected must comply with the
electromagnetic compatibility
requirements laid down in
DIN VDE 40 839.
Do not connect any current-delivering
accessories, e.g. electrical charging
devices or batteries.
Do not damage the outlets by using
unsuitable plugs.
Stop-start system 3 138.
USB charging port
One or two USB ports are located in
the centre console. Both USB ports
are prepared for charging devices.
When two USB ports are avilable, the
upper USB port can be used to
connect a phone for phone projection.