20Keys, doors and windowsLock cylinders
Designed to free-wheel if they are
forcefully rotated without the correct
key or if the correct key is not fully
inserted. To reset, turn cylinder with
the correct key until its slot is vertical, remove key then re-insert it. If the
cylinder still free-wheels, turn the key
through 180° and repeat operation.
Key with foldaway key section
Press button to extend. To fold the
key, first press the button.
Car Pass
The Car Pass contains security-
related vehicle data and should
therefore be kept in a safe place.
When the vehicle is taken to a
workshop, this vehicle data is needed
in order to perform certain operations.
Radio remote control
Used to operate: ● central locking system
● anti-theft locking system
● anti-theft alarm system
● power windows
The radio remote control has a range of approx. 20 metres. It can be
restricted by external influences. The
hazard warning flashers confirm
operation.
Handle with care, protect from
moisture and high temperatures and
avoid unnecessary operation.
Fault
If the central locking system cannot
be operated with the radio remote
control, it may be due to the following:
● 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.
Unlocking 3 22.
Keys, doors and windows21Basic settingsSome settings can be changed in theInfo-Display.
Vehicle personalisation 3 99.
Radio remote control battery
replacement
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.
Key with foldaway key section
Extend the key and open the unit.
Replace the battery (battery type CR 2032), paying attention to the
installation position. Close the unit
and synchronise.
Key with fixed key section
Have the battery replaced by a
workshop.
Radio remote control
synchronisation
After replacing the battery, unlock the
door with the key in the driver's door
lock. The radio remote control will be
synchronised when the ignition is
switched on.
Memorised settings Whenever the key is removed from
the ignition switch, the following
settings are automatically memorised by the key:
● lighting
● Infotainment system presets
● central locking system
● comfort settings
● climate control
The saved settings are automatically
used the next time the memorised key
is inserted into the ignition switch and
turned to position 1 3 126.
A precondition is that Personalization
by driver is activated in the personal
settings of the Info-Display. This must
be set for each key used.
26Keys, doors and windowsActivation● Self-activated 30 seconds after locking the vehicle by pressing e
once.
● Directly by pressing e twice
within five seconds.
Status LED
Status LED is integrated in the sensor
on top of the instrument panel.
Status during the first 30 seconds of
anti-theft alarm system activation:LED illuminates:test, arming delayLED flashes
quickly:doors, tailgate or
bonnet not
completely closed,
or system fault
Status after system is armed:
LED flashes
slowly:system is armed
Seek the assistance of a workshop in the event of faults.
Deactivation Unlocking the vehicle by pressing c
deactivates anti-theft alarm system.
The system is not deactivated by
unlocking the driver's door with the
key or with the central locking button
in the passenger compartment.
Alarm When triggered, the alarm horn
sounds and the hazard warning lights
flash simultaneously. The number
and duration of alarm signals are
stipulated by legislation.
The alarm can be silenced by
pressing any button on the radio
remote control or by switching on the
ignition.
The anti-theft alarm system can only
be deactivated by pressing c on the
radio remote control or by 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 when the vehicle is unlocked
with the radio remote control.
Vehicle messages 3 96.
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.
30Keys, doors and windows
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 or a warning code
is displayed in the Driver Information
Centre.
Vehicle messages 3 96.
Activate the window electronics as
follows:
1. Close the doors.
2. Switch on the ignition.
3. Pull switch until the window is closed and keep pulling for
additional two seconds.
4. Repeat for each window.Heated rear window
Operated by pressing Ü.
Heating works with the engine
running and is switched off
automatically after a short time.
Sun visors The sun visors can be folded down or
swivelled to the side to prevent
dazzling.
The integral mirrors should be closed when driving.
A ticket holder is located on the
backside of the sun visor.
70Instruments and controlsInstruments and
controlsControls ....................................... 71
Steering wheel adjustment ........71
Steering wheel controls .............71
Heated steering wheel ...............71
Horn ........................................... 72
Windscreen wiper/washer .........72
Rear window wiper/washer .......74
Outside temperature ..................74
Clock ......................................... 75
Power outlets ............................. 77
Inductive charging .....................77
Cigarette lighter ......................... 78
Ashtrays .................................... 78
Warning lights, gauges and indi‐ cators ........................................... 79
Instrument cluster ......................79
Speedometer ............................. 79
Odometer .................................. 79
Trip odometer ............................ 79
Tachometer ............................... 79
Fuel gauge ................................ 80
Fuel selector .............................. 80
Engine coolant temperature gauge ....................................... 81Service display.......................... 81
Control indicators ......................82
Turn signal ................................. 84
Seat belt reminder .....................84
Airbag and belt tensioners .........85
Airbag deactivation ....................85
Charging system .......................85
Malfunction indicator light ..........86
Service vehicle soon .................86
Brake and clutch system ...........86
Operate pedal ............................ 86
Antilock brake system (ABS) .....87
Upshift ....................................... 87
Power steering .......................... 87
Ultrasonic parking assist ...........87
Electronic Stability Control off ...87
Electronic Stability Control and Traction Control system ...........87
Tyre pressure monitoring system ...................................... 88
Engine oil pressure ....................88
Low fuel ..................................... 88
Immobiliser ................................ 89
Exterior light .............................. 89
High beam ................................. 89
Rear fog light ............................. 89
Cruise control ............................ 89
Door open .................................. 89
Information displays .....................89
Driver Information Centre ..........89Colour-Info-Display ....................94
Graphic-Info-Display ..................95
Vehicle messages ........................96
Warning chimes .........................98
Battery voltage .......................... 98
Vehicle personalisation ................99
Telematics service .....................102
OnStar ..................................... 102
Instruments and controls77Set time and date
To adjust the time and date settings,
tap on the H and I screen buttons.
RDS clock synchronization
The RDS signal of most VHF
transmitters automatically sets the
time. RDS time synchronisation can take a few minutes. Some
transmitters do not send a correct
time signal. In such cases, it is
recommended to switch off the
automatic time synchronisation.
To activate or deactivate RDS clock
synchronization , tap on the screen
buttons On or Off.
Power outlets
A 12 Volt power outlet is located in the
centre console.
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 outlet by using
unsuitable plugs.
Stop-start system 3 128.
Inductive charging9 Warning
Inductive charging can affect the
operation of implanted
pacemakers or other medical
devices. If applicable, seek
medical advice before using the
inductive charging device.
9 Warning
Remove any metal objects from
the charging device before
charging a mobile phone, as these
objects could become very hot.
86Instruments and controlsIlluminates when the ignition is
switched on and extinguishes shortly
after the engine starts.
Illuminates when the engine is
running
Stop, switch off engine. Vehicle
battery is not charging. Engine
cooling may be interrupted. The
brake servo unit may cease to be
effective. Seek the assistance of a
workshop.
Malfunction indicator light Z illuminates or flashes yellow.
Illuminates when the ignition is
switched on and extinguishes shortly
after the engine starts.
Illuminates when the engine is
running
Fault in the emission control system. The permitted emission limits may be
exceeded. Seek the assistance of a
workshop immediately.Flashes when the engine is
running
Fault that could lead to catalytic converter damage. Ease up on the
accelerator until the flashing stops.
Seek the assistance of a workshop
immediately.
Service vehicle soon g illuminates yellow.
Additionally, a warning message is
displayed in the Driver Information Centre.
The vehicle needs a service.
Seek the assistance of a workshop. Vehicle messages 3 96.
Brake and clutch system R illuminates red.
The brake and clutch fluid level is too low, when manual parking brake is
not applied 3 167.9 Warning
Stop. Do not continue your
journey. Consult a workshop.
Illuminates when the manual parking
brake is applied and ignition is
switched on 3 137.
Operate pedal - illuminates or flashes yellow.
Illuminates
Clutch pedal must be depressed to
start the engine in Autostop mode.
Stop-start system 3 128.
Flashes
Clutch pedal must be depressed for a
main start of the engine 3 16, 3 127.
On some versions, the operate pedal message is indicated in the Driver
Information Display 3 96.
Instruments and controls97No.Vehicle message9Turn steering wheel, startengine again12Vehicle overloaded13Compressor overheated15Centre high-mounted brake
light failure16Brake light failure17Headlight levelling malfunction18Left low beam failure19Rear fog light failure20Right low beam failure21Left sidelight failure22Right sidelight failure23Reversing light failure24Number plate light failure25Left front turn signal failure26Left rear turn signal failure27Right front turn signal failureNo.Vehicle message28Right rear turn signal failure35Replace battery in radio remote
control48Clean side blind spot alert
system53Tighten fuel filler cap56Tyre pressure imbalance on
front axle57Tyre pressure imbalance on
rear axle58Winter tyres detection59Open then close driver window60Open then close front
passenger window66Service theft alarm system67Service steering wheel lock68Service power steering75Service air conditioningNo.Vehicle message76Service side blind spot alert
system79Top up engine oil82Change engine oil soon84Engine power reduced89Service vehicle soon95Service airbag128Bonnet open134Parking assist fault, clean
bumper136Service parking assist174Low vehicle battery151Press clutch to start258Parking assist off