Page 111 of 297

Instruments and controls109Airbag and belt tensioners
v illuminates red.
When the ignition is switched on, the
control indicator illuminates for
approx. 4 seconds. If it does not
illuminate, does not go out after
4 seconds or illuminates whilst
driving, there is a fault in the airbag
system. Seek the assistance of a
workshop. The airbags and belt
pretensioners may fail to trigger in the event of an accident.
Deployment of the belt pretensioners
or airbags is indicated by continuous
illumination of v.9 Warning
Have the cause of the fault
remedied immediately by a
workshop.
Belt pretensioners, airbag system
3 49, 3 53.
Airbag deactivation
ON V illuminates yellow.
Illuminates for approx. 60 seconds
after the ignition is switched on. The
front passenger airbag is activated.
OFF * illuminates yellow.
The front passenger airbag is
deactivated 3 55.9 Danger
Risk of fatal injury for a child using
a child restraint system together
with activated front passenger
airbag.
Risk of fatal injury for an adult
person with deactivated front
passenger airbag.
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 isrunning
Fault in the emission control system. The permitted emission limits may be
exceeded. Seek the assistance of a
workshop immediately.
Page 116 of 297

114Instruments and controlsReduced engine power
# illuminates yellow.
The engine power is limited. Consult
a workshop.
Exterior light 8 illuminates green.
The exterior lights are on 3 136.
High beam
C illuminates blue.
Illuminates when high beam is on,
during headlight flash 3 137 , or when
high beam is on with high beam assist
or intelligent light range 3 139.
High beam assist l illuminates green.
The high beam assist or intelligent light range is activated 3 137,
3 139.
Adaptive forward lighting
f illuminates or flashes yellow.Illuminates
Fault in system.
Seek the assistance of a workshop.
Flashes System switched to symmetrical low
beam.
Control indicator f flashes for approx.
4 seconds after the ignition is
switched on as a reminder that the
system has been activated 3 139.
Automatic light control 3 137.
Fog light
> illuminates green.
The front fog lights are on 3 143.
Rear fog light
r illuminates yellow.
The rear fog light is on 3 144.
Low washer fluid G illuminates yellow.
The washer fluid level is low.Washer fluid 3 225.
Cruise control
m illuminates white or green.
Illuminates white
The system is on.
Illuminates green
Cruise control is active.
Cruise control 3 177.
Adaptive cruise control m illuminates white or green.
Illuminates white
The system is on.
Illuminates green
Adaptive cruise control is active.
Adaptive cruise control 3 180.
Vehicle detected ahead A illuminates green.
Page 118 of 297
116Instruments and controls
In the Uplevel-Combi-Display, menu
pages can be selected by pressing
the MENU button; Menu symbols are
indicated in the top line of the display:
■ X Vehicle Information Menu
■ W Trip/Fuel Information Menu
■ s ECO Information Menu
Some of the displayed functions differ
when the vehicle is being driven or at
a standstill. Some functions are only
available when the vehicle is being
driven.
Vehicle personalisation 3 128.
Memorised settings 3 21.
Selecting menus and functions
The menus and functions can be
selected via the buttons on the turn signal lever.
Press the MENU button to switch
between the menus or to return from
a submenu to the next higher menu
level.
Turn the adjuster wheel to highlight a
menu option or to set a numeric value.
Press the SET/CLR button to select a
function or to confirm a message.
Page 124 of 297

122Instruments and controls
Vehicle messages on theMidlevel-Display
The vehicle messages are displayed
as code numbers.
No.Vehicle message2No radio remote control
detected, depress clutch pedal
for a restart3Engine coolant level low4Air conditioning off5Steering wheel is lockedNo.Vehicle message6Depress brake pedal to release
electric parking brake7Turn steering wheel, switch
ignition off and then on9Turn steering wheel, start
engine 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 failureNo.Vehicle message24Number plate light failure25Left front turn signal failure26Left rear turn signal failure27Right front turn signal failure28Right rear turn signal failure29Check trailer brake light30Check trailer reversing light31Check left trailer turn signal32Check right trailer turn signal33Check trailer rear fog light34Check trailer rear light35Replace battery in radio remote
control48Clean side blind zone alert
system49Lane departure warning
unavailable53Tighten gas cap
Page 126 of 297

124Instruments and controls
The vehicle messages are displayed
as text. Follow the instructions given
in the messages.
The system displays messages
regarding the following topics:
■ Service messages
■ Fluid levels
■ Anti-theft alarm system
■ Brakes
■ Driver assistance systems
■ Ride control systems
■ Speed limiter
■ Cruise control
■ Adaptive cruise control
■ Forward collision alert
■ Collision imminent braking system
■ Parking assistant systems
■ Lighting, bulb replacement
■ Adaptive forward lighting
■ Wiper/washer system
■ Doors, windows
■ Side blind spot alert
■ Traffic sign assistant■ Lane departure warning
■ Radio remote control
■ Seat belts
■ Airbag systems
■ Engine and transmission
■ Tyre pressure
■ Diesel particle filter 3 163
■ Vehicle battery status
■ Selective catalytic reduction, Diesel
Exhaust Fluid (DEF), AdBlue
3 164
Vehicle messages on the
Colour-Info-Display Some important messages appear
additionally in the
Colour-Info-Display. Press the
multifunction knob to confirm a
message. Some messages only pop- up for a few seconds.Warning chimes
When starting the engine orwhilst driving
Only one warning chime will sound at
a time.
The warning chime regarding
unfastened seat belts has priority
over any other warning chime.
■ If seat belt is not fastened.
■ If a door or the tailgate is not fully closed when starting-off.
■ If a certain speed is exceeded with parking brake applied.
■ If adaptive cruise control deactivates automatically.
■ If approaching a vehicle ahead too closely.
■ If a programmed speed or speed limit is exceeded.
■ If a warning message or a warning code appears in the Driver
Information Centre (DIC).
■ If the parking assist detects an object.
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Instruments and controls125
■ If an unintended lane changeoccurs.
■ If reverse gear is engaged and the rear end carrier is extended.
■ If the diesel particle filter has reached the maximum filling level.
■ If AdBlue needs to be refilled.
When the vehicle is parked and/ or the driver's door is opened ■ When the key is in the ignition switch.
■ With exterior lights on.
During an Autostop ■ If the driver's door is opened.
Battery voltage
When the vehicle battery voltage is
running low, a warning message or
warning code 174 will appear in the
Driver Information Centre.1. Switch off immediately any electrical consumers which are
not required for a safe ride, e.g.
seat heating, heated rear window
or other main consumers.
2. Charge the vehicle battery by driving continuously for a while or
by using a charging device.
The warning message or warning
code will disappear after the engine
has been started two times
consecutively without a voltage drop.
If the vehicle battery cannot be
recharged, have the cause of the fault
remedied by a workshop.Trip computer
The menus and functions can be
selected via the buttons on the turn
signal lever.
Press the MENU button to select the
Trip/Fuel Information Menu , or select
W on the Uplevel-Combi-Display.
Page 131 of 297
Instruments and controls129
Press the CONFIG button. The menu
Settings is displayed.
The following settings can be
selected by turning and pressing the
multifunction knob:
■ Sport mode settings
■ Languages
■ Time Date
■ Radio settings
■ Phone settings
■ Vehicle settings
In the corresponding submenus, the
following settings can be changed:
Sport mode settings
The driver can select the functions
which will be activated in Sport mode
3 175.
■ Sport suspension : Damping
becomes harder.
■ Sport powertrain performance :
Accelerator pedal and gear change
characteristics become more
responsive.■ Sport steering : Steering support is
reduced.
■ Swap backlight colour main instr. :
Change of instrument illumination
colour.
Languages
Selection of the desired language.
Time Date
See Clock 3 99.
Radio settings
See description for Infotainment
system in the Infotainment system
manual.
Phone settings
See description for Infotainment
system in the Infotainment system
manual.
Page 132 of 297

130Instruments and controls
Vehicle settings
■Climate and air quality
Auto fan speed : Modifies the fan
regulation. Changed setting will be
active after switching the ignition off
and on again.
Climate control mode : Activates or
deactivates the cooling every time
the ignition is switched on or uses
the last chosen setting.
Auto rear demist : Activates heated
rear window automatically.
■ Comfort settings
Chime volume : Changes the
volume of warning chimes.
Personalization by driver : Activates
or deactivates the personalisation
function.
Rear auto wipe in reverse :
Activates or deactivates automatic
switching on of the rear window
wiper when reverse gear is
engaged.
■ Park assist / Collision detection
Park assist : Activates or
deactivates the ultrasonic parking
assist.
Auto collision preparation :
Activates or deactivates the
automatic brake functionality of the vehicle in the event of imminent
collision danger. The following is
selectable: the system will take
over brake control, warn by chimes
only or is deactivated completely.
Side blind zone alert : Changes the
settings for the side blind spot alert
system.
■ Exterior ambient lighting
Duration upon exit of vehicle :
Activates or deactivates and
changes the duration of exit
lighting.
Exterior lighting by unlocking :
Activates or deactivates the
welcome lighting.
■ Power door locks
Auto door lock : Activates or
deactivates the automatic door
unlocking function after switching off ignition. Activates or deactivates the automatic door locking function
after driving-off.