24Keys, doors and windows2. Insert the key blade again forapprox. 6 mm and turn the key to
open the housing. Further
insertion of the key blade can
damage the housing.
3. Remove and replace battery. Use
CR 2032 or equivalent battery.
Pay attention to the installation
position.
4. Close the housing and insert key blade.
Electronic key synchronisation
The electronic key synchronises itself automatically during every starting
procedure.
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 24.
Memorised settings Whenever the ignition is switched off,
some functions of the following
settings may be automatically
memorised by the remote control unit or the electronic key:
● automatic climate control
● lighting
● Infotainment system
● central locking system
● comfort settings
The saved settings are automatically used the next time the ignition is
switched on with the memorised key
of the remote control unit 3 151 or
electronic key 3 22.A precondition is that Personalisation
by Driver is activated in the personal
settings of the Info Display. This must
be set for each remote control unit or
electronic key which is used. The
status change is available only after
locking and unlocking the vehicle.
The assigned memory position of the power seat is automatically recalled
when switching on ignition and Auto
Memory Recall is activated in the
Info Display for the memorised
remote control or electronic key.
Power seat 3 51.
Vehicle personalisation 3 123.
Central locking system
Unlocks and locks doors, load
compartment and fuel filler flap.
A pull on an interior door handle
unlocks the respective door. Pulling the handle once more opens the door.
Notice
In the event of an accident in which
airbags or belt pretensioners are
deployed, the vehicle is
automatically unlocked.
54Seats, restraintsthe ignition is switched on. In addition,a message in the Driver Information
Centre indicates the driver number,
identified by the used key. If the
ignition is switched on more than
three subsequent times with the
same key, the message will not be
displayed again until another key is
being used.
To stop recall movement, press one
of the memory or power seat controls.
Precondition is that Personalisation
by Driver and Auto Memory Recall is
activated in the personal settings of
the Info Display.
This function can be activated or
deactivated in the vehicle
personalisation.
Select the relevant setting in the
Vehicle menu in the Info Display.
Info Display 3 120.
Vehicle personalisation 3 123.
Easy exit function
For a convenient exit out of the
vehicle, the power driver seat moves
rearwards when vehicle is stationary.To activate the easy exit function:
● set selector lever to position P
(automatic transmission)
● apply parking brake (manual transmission)
● switch off ignition
● remove key from the ignition switch
● open the driver's door
If the door is already open, switch off ignition to activate easy exit.
To stop movement, press one of the
memory or power seat controls.
This function can be activated or
deactivated in the vehicle
personalisation.
Select the relevant setting in the Vehicle menu in the Info Display.
Info Display 3 120.
Vehicle personalisation 3 123.
Safety function
If the driver's seat encounters
resistance during movement, the
recall may stop. After removing the
obstruction, press and hold the
appropriate memory position buttonfor two seconds. Try recalling the
memory position again. If the recall
does not operate, consult a
workshop.
Overload
If the seat setting is electrically
overloaded, the power supply is
automatically cut-off for a short time.
Notice
After an accident in which airbags have been deployed, the memory
function for each position button will
be deactivated.
Armrest
Seats, restraints65Use the ignition key to choose theposition:* OFF:front passenger airbag is
deactivated and will not
inflate in the event of a
collision. Control indicator
* OFF illuminates
continuously in the
overhead console.V ON:front passenger airbag is
active9 Danger
Deactivate passenger airbag only
in combination with the use of a
child restraint system, subject to
the instructions and restrictions in
the table 3 68.
Otherwise, there is a risk of fatal
injury for a person occupying a
seat with a deactivated front
passenger airbag.
If the control indicator V illuminates
for approx. 60 seconds after the
ignition is switched on, the front
passenger airbag system will inflate
in the event of a collision.
If the control indicator * illuminates
after the ignition is switched on, the front passenger airbag system is
deactivated. It stays on while the
airbag is deactivated.
If both control indicators are
illuminated at the same time, there is
a system failure. The status of the
system is not discernible, therefore
no person is allowed to occupy the
front passenger seat. Contact a
workshop immediately.
Consult a workshop immediately if
neither of the two control indicators
are illuminated.
Change status only when the vehicle is stopped with the ignition off.
Status remains until the next change.
Control indicator for airbag
deactivation 3 108.
Instruments and controls91Instruments and
controlsControls ....................................... 92
Steering wheel adjustment ........92
Steering wheel controls .............92
Heated steering wheel ...............92
Horn ........................................... 93
Windscreen wiper and washer ..93
Rear window wiper and washer ...................................... 95
Outside temperature ..................96
Clock ......................................... 96
Power outlets ............................. 98
Inductive charging .....................99
Ashtrays .................................. 100
Warning lights, gauges and indi‐ cators ......................................... 100
Instrument cluster ....................100
Speedometer ........................... 103
Odometer ................................ 104
Trip odometer .......................... 104
Tachometer ............................. 105
Fuel gauge .............................. 105
Engine coolant temperature gauge ..................................... 105
Service display ........................ 106Control indicators ....................107
Turn lights ................................ 107
Seat belt reminder ...................107
Airbag and belt tensioners .......108
Airbag deactivation ..................108
Charging system .....................109
Malfunction indicator light ........109
Brake and clutch system .........109
Electric parking brake ..............109
Electric parking brake fault ......109
Antilock brake system (ABS) ...110
Gear shifting ............................ 110
Following distance ...................110
Lane keep assist .....................110
Electronic Stability Control off . 110
Electronic Stability Control and Traction Control system .........110
Traction Control system off .....111
Engine coolant temperature ....111
Preheating ............................... 111
AdBlue ..................................... 111
Tyre pressure monitoring system .................................... 111
Engine oil pressure ..................111
Low fuel ................................... 112
Immobiliser .............................. 112
Exterior light ............................ 112
High beam ............................... 112
High beam assist .....................112
LED headlights ........................ 112Front fog lights......................... 113
Rear fog light ........................... 113
Cruise control .......................... 113
Adaptive cruise control ............113
Vehicle detected ahead ...........113
Pedestrian detection ................113
Speed limiter ........................... 113
Traffic sign assistant ................114
Door open ................................ 114
Displays ..................................... 114
Driver Information Centre ........114
Info Display .............................. 120
Vehicle messages ......................121
Warning chimes .......................122
Battery voltage ........................ 122
Vehicle personalisation ..............123
Telematics service .....................128
Emergency call ........................128
Instruments and controls103OverviewOTurn lights 3 107XSeat belt reminder 3 107vAirbag and belt tensioners
3 108VAirbag deactivation 3 108pCharging system 3 109ZMalfunction indicator light
3 109RBrake and clutch system 3 109mElectric parking brake 3 109jElectric parking brake fault
3 109uAntilock brake system (ABS)
3 110RGear shifting 3 110EFollowing distance 3 110aLane keep assist 3 110aElectronic Stability Control off
3 110bElectronic Stability Control and
Traction Control system 3 110kTraction Control system off
3 111WEngine coolant temperature
3 111!Preheating 3 111ùAdBlue 3 111wTyre pressure monitoring
system 3 111IEngine oil pressure 3 111YLow fuel 3 112dImmobiliser 3 1128Exterior light 3 112CHigh beam 3 112fHigh beam assist 3 112fLED headlights 3 112>Front fog lights 3 113øRear fog light 3 113mCruise control 3 113 / Adaptive
cruise control 3 113CAdaptive cruise control 3 113AVehicle detected ahead 3 1137Pedestrian detected ahead
3 113LSpeed limiter 3 113LTraffic sign assistant 3 114hDoor open 3 114
Speedometer
Indicates vehicle speed.
Instruments and controls109The front passenger airbag is
deactivated.
Airbag deactivation 3 64.
Charging 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.
The cleaning process of the exhaust
filter is potentially not possible.
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.
Brake and clutch system
R illuminates red.
The brake and clutch fluid level is too
low, when manual parking brake is
not applied 3 226.9 Warning
Stop. Do not continue your
journey. Consult a workshop.
Illuminates when the manual parking
brake is applied and ignition is
switched on 3 170.
Electric parking brake
m illuminates or flashes red.
Illuminates
Electric parking brake is applied
3 170.
Flashes
Electric parking brake is not fully applied or released. Depress the brake pedal and attempt to reset the
system by first releasing then
applying the electric parking brake. If
m remains flashing, do not drive and
seek the assistance of a workshop.
Electric parking brake fault j illuminates or flashes yellow.
128Instruments and controlsTelematics service
Emergency call
Emergency call function Vehicles featuring the emergency call
function are equipped with a red
SOS button in the overhead console.
The emergency call function will
establish a connection to the nearest
public safety answering point (PSAP).
A minimum set of data including
vehicle and location information will
be sent to the PSAP.
Notice
Establishing an emergency call may not be possible in areas without
sufficient network availability or due
to hardware damage during an
accident.
Automatic crash notification
In case of an accident with airbag
deployment, an automatic
emergency call is established and an
automatic crash notification will be
transmitted to the next public safety answering point.
Emergency assistance
In case of an emergency you can also
manually place an emergency call by pressing the red SOS button for more
than two seconds. The LED flashes to confirm that a connection to the
nearest PSAP is being established.
The LED illuminates steadily as long
as the call is active.
Pressing the SOS button immediately
a second time will terminate the call.
The LED switches off.
134LightingCurve light
Particular LEDs, based on steering
angle and speed, are additionally
triggered to improve lighting in
curves. This function is activated at
speeds from 25 mph to 43 mph and
reacts to steering angle.
Cornering light
When turning off, depending on the
steering angle and the turn lights, particular LEDs are triggered which
illuminate the direction of travel. It is
activated up to a speed of 25 mph.
Reverse parking function
To assist driver's orientation when
parking, both corner lights and
reversing light illuminate when
headlights are on and reverse gear is
engaged. They remain illuminated for
a short time after disengaging reverse gear or until driving faster than
4 mph in a forward gear.
Automatic headlight levelling
To prevent oncoming traffic from
being dazzled, headlight levelling is
automatically adjusted based on
inclination information measured by
front and rear axle, acceleration or
deceleration and vehicle speed.
Headlights when driving abroad 3 132.
Fault in LED headlight system
When the system detects a failure in
the LED headlight system, it selects a
preset position to avoid dazzling of
oncoming traffic. A warning is
displayed in the Driver Information
Centre.Hazard warning flashers
Operated by pressing ¨.
The illustrations show different
versions.
In the event of an accident with airbag
deployment, the hazard warning
flashers are activated automatically.