Keys, doors and windows21Lock 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 and 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
● sunroof
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:
● Range is exceeded.
● 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.
22Keys, doors and windowsUnlocking 3 23.
Basic settings Some settings can be changed in the
Settings menu in the Info-Display.
Vehicle personalisation 3 130.
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.
Radio remote control
synchronisation
After replacing the battery, unlock the
door with the key in the driver's door
lock. The radio remote control is
synchronised by switching on the
ignition.
Memorised settings
Whenever the key is removed from
the ignition switch, the following
settings are automatically memorised by the key:
● lighting
● Infotainment system
● central locking system
● Sport mode settings
● comfort settings
The saved settings are automatically
used the next time the memorised key
is inserted into the ignition switch and
turned to position 1 3 165.
A precondition is that Personalization
by driver is activated in the personal
settings of the Graphic-Info-Display.
This must be set for each key used.
On vehicles equipped with
Colour-Info-Display, the
personalisation is permanently
activated.
Vehicle personalisation 3 130.
Keys, doors and windows293. Close doors.
4. Activate the anti-theft alarm system.
Status message is displayed in the
Driver Information Centre (DIC).
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 faultStatus 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 the 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 numberand 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 be
deactivated only by pressing c 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 the next time the vehicle is unlocked with the radio remote
control. Additionally a warning
message or a warning code is
displayed in the DIC after switching
on the ignition.
Vehicle messages 3 124.
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.
34Keys, doors and windowsChild safety system for rear
windows
Press z to deactivate rear door
power windows; the LED illuminates.
To activate, press z 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 or a warning code
is displayed in the Driver Information
Centre (DIC).
Vehicle messages 3 124.
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 2 seconds.
4. Repeat for each window.
98Instruments and controlsInstruments and
controlsControls ....................................... 99
Steering wheel adjustment ........99
Steering wheel controls .............99
Heated steering wheel ...............99
Horn ......................................... 100
Windscreen wiper/washer .......100
Rear window wiper/washer .....102
Outside temperature ................102
Clock ....................................... 103
Power outlets ........................... 104
Cigarette lighter .......................105
Ashtrays .................................. 105
Warning lights, gauges and indi‐ cators ......................................... 106
Instrument cluster ....................106
Speedometer ........................... 106
Odometer ................................ 106
Trip odometer .......................... 106
Tachometer ............................. 106
Fuel gauge .............................. 107
Fuel selector ............................ 107
Engine coolant temperature gauge ..................................... 107
Service display ........................ 108Control indicators ....................109
Turn signal ............................... 112
Seat belt reminder ...................112
Airbag and belt tensioners .......112
Airbag deactivation ..................112
Charging system .....................113
Malfunction indicator light ........113
Service vehicle soon ...............113
Brake and clutch system .........113
Operate pedal .......................... 113
Electric parking brake ..............113
Electric parking brake fault ......114
Antilock brake system (ABS) ...114
Upshift ..................................... 114
Power steering ........................ 114
Lane departure warning ..........114
Ultrasonic parking assist .........115
Electronic Stability Control off . 115
Electronic Stability Control and Traction Control system .........115
Traction Control system off .....115
Preheating ............................... 115
Diesel particle filter ..................115
Tyre pressure monitoring system .................................... 116
Engine oil pressure ..................116
Low fuel ................................... 116
Immobiliser .............................. 117
Reduced engine power ...........117
Exterior light ............................ 117High beam............................... 117
High beam assist .....................117
Adaptive forward lighting .........117
Fog light ................................... 117
Rear fog light ........................... 117
Low washer fluid ......................117
Cruise control .......................... 117
Adaptive cruise control ............117
Vehicle detected ahead ...........118
Door open ................................ 118
Information displays ...................118
Driver Information Centre ........118
Graphic-Info-Display, Colour- Info-Display ............................ 122
Smartphone controller .............124
Vehicle messages ......................124
Warning chimes .......................127
Battery voltage ........................ 127
Trip computer ............................. 128
Vehicle personalisation ..............130
OnStar® system ........................135
Instruments and controls105A further 12 Volt power outlet is
located in the rear console. Fold the
cover downwards.
Sports tourer: A 12 Volt power outlet
is located at the left sidewall in the
load compartment.
Do not exceed the maximum power
consumption of 120 watts.
With ignition off, the power outlets are
deactivated. Additionally the power
outlets are deactivated in the event of
low vehicle battery voltage.
Electric 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. electric charging
devices or batteries.
Do not damage the outlet by using
unsuitable plugs.
Stop-start system 3 166.Cigarette lighter
The cigarette lighter is located in the
front console.
Press in cigarette lighter. It switches off automatically once the element is
glowing. Pull out lighter.
Ashtrays
Caution
To be used only for ash and not for combustible rubbish.
The portable ashtray can be placed inthe cupholders.
Instruments and controls113Charging system
p illuminates red.
Illuminates 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 or a
warning code is displayed.
The vehicle needs a service.
Seek the assistance of a workshop.
Vehicle messages 3 124.
Brake and clutch system R illuminates red.
The brake and clutch fluid level is too
low 3 231.9 Warning
Stop. Do not continue your
journey. Consult a workshop.
Illuminates after the ignition is
switched on if the manual parking
brake is applied 3 176.
Operate pedal - illuminates or flashes yellow.
Illuminates
Brake pedal needs to be depressed
to release the electric parking brake
3 176.
Clutch pedal needs to be depressed
to start the engine in Autostop mode.
Stop-start system 3 166.
Flashes
Clutch pedal needs to be depressed
for a main start of the engine 3 18,
3 165.
On some versions the operate pedal
message is indicated in the Driver
Information Centre (DIC) 3 124.
Electric parking brake
m illuminates or flashes red.
122Instruments and controls
●Economy Trend : Displays the
average consumption
development over a distance of
50 miles. Filled segments display
the consumption in 5 mile steps
and shows the effect of
topography or driving behaviour
on fuel consumption.
Performance Menu
Press MENU to select the
Performance Menu , or select C on
Uplevel-Combi-Display.
Turn the adjuster wheel to select a
submenu. Press SET/CLR to confirm.
Submenus are: ● Acceleration : Display of current
acceleration in all directions.
● Lap Timer : Display of lap times,
top speed, average speed and
average time. Follow the
instructions given in the
submenu.
● Coolant Temp. : Display of
coolant temperature.
● Battery Volt. : Display of vehicle
battery voltage.
Graphic-Info-Display, Colour-Info-Display
Depending on the vehicle
configuration the vehicle has a
Graphic-Info-Display or Colour-Info-
Display. The Info-Display is located in
the instrument panel above the
Infotainment system.
Graphic-Info-Display