Page 117 of 341

Instruments and controls115Illuminates green
System is switched on and ready to
operate.
Flashes yellow System recognises an unintended
lane change.
Ultrasonic parking assist
r illuminates yellow.
Fault in system
or
Fault due to sensors that are dirty or
covered by ice or snow
or
Interference due to external sources
of ultrasound. Once the source of interference is removed, the system
will operate normally.
Have the cause of the fault in the
system remedied by a workshop.
Ultrasonic parking assist 3 198.Electronic Stability Control
off
n illuminates yellow.
The system is deactivated.
Electronic Stability Control and Traction Control system
b illuminates or flashes yellow.
Illuminates
A fault in the system is present.
Continued driving is possible. Driving stability, however, may deterioratedepending on road surface
conditions.
Have the cause of the fault remedied
by a workshop.
Flashes
The system is actively engaged.
Engine output may be reduced and
the vehicle may be braked
automatically to a small degree.
Electronic Stability Control (ESC)
3 179, Traction Control system (TC)
3 178.Traction Control system off
k illuminates yellow.
The system is deactivated.
Preheating
! illuminates yellow.
Preheating is activated. Only
activates when outside temperature is low.
Diesel particle filter
% illuminates or flashes yellow.
The diesel particle filter requires
cleaning.
Continue driving until %
extinguishes. If possible, do not allow engine speed to drop below
2000 rpm.
Illuminates
The diesel particle filter is full. Start
cleaning process as soon as
possible.
Page 118 of 341

116Instruments and controlsFlashes
The maximum filling level of the filter is reached. Start cleaning process
immediately to avoid damage to the
engine.
Diesel particle filter 3 169, Stop-start
system 3 166.
Tyre pressure monitoring
system
w illuminates or flashes yellow.
Illuminates
Tyre pressure loss. Stop immediately
and check tyre pressure.
Flashes
Fault in system or tyre without
pressure sensor mounted ( e.g. spare
wheel). After 60-90 seconds the control indicator illuminates
continuously. Consult a workshop.
Engine oil pressure
I illuminates red.Illuminates when the ignition is
switched on and extinguishes shortly
after the engine starts.
Illuminates when the engine is
runningCaution
Engine lubrication may be
interrupted. This may result in
damage to the engine and/or
locking of the drive wheels.
1. Depress clutch.
2. Select neutral gear, set selector lever to N.
3. Move out of the flow of traffic as quickly as possible without
impeding other vehicles.
4. Switch off ignition.
9 Warning
When the engine is off,
considerably more force is needed
to brake and steer. During an
Autostop the brake servo unit will still be operational.
Do not remove key until vehicle is stationary, otherwise the steeringwheel lock could engage
unexpectedly.
Check oil level before seeking the
assistance of a workshop 3 228.
Low fuel
i illuminates or flashes yellow.
Illuminates
Level in fuel tank is too low.
Flashes
Fuel used up. Refuel immediately.
Never run the tank dry.
Catalytic converter 3 170.
Bleeding the diesel fuel system
3 233.
Page 119 of 341

Instruments and controls117Immobiliser
d flashes yellow.
Fault in the immobiliser system. The
engine cannot be started.
Reduced engine power # illuminates yellow.
The engine power is limited. Consult
a workshop.
Exterior light
8 illuminates green.
The exterior lights are on 3 140.
High beam C illuminates blue.
Illuminates when high beam is on or
during headlight flash 3 142 , or when
high beam is on with high beam assist
or intelligent light range 3 144.
High beam assist l illuminates green.The high beam assist or intelligent
light range is activated 3 142,
3 144.
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 3 143.
Automatic light control 3 141.
Fog light > illuminates green.
The front fog lights are on 3 148.Rear fog light
r illuminates yellow.
The rear fog light is on 3 148.
Low washer fluid G illuminates yellow.
The washer fluid level is low.
Washer fluid 3 230.
Cruise control
m illuminates white or green.
Illuminates white The system is on.
Illuminates green
Cruise control is active.
Cruise control 3 183.
Adaptive cruise control m illuminates white or green.
Illuminates white The system is on.
Page 122 of 341
120Instruments and controls
●Remaining Oil Life : Indicates
when to change the engine oil and filter 3 108.
● Speed Warning : If exceeding the
preset speed, a warning chime will be activated.
● Traffic Sign Assistant : Displays
detected traffic signs for the
current route section. 3 209
● Following Dist. : Displays the
distance to a moving vehicle ahead 3 196.
Selection and indication can be
different between Midlevel-Display
and Uplevel-Combi-Display.
Trip/Fuel Information Menu
Press MENU to select the Trip/Fuel
Information Menu , or select W on
Uplevel-Combi-Display.
Turn the adjuster wheel to select a
submenu. Press SET/CLR to confirm.
● trip odometer 1
● trip odometer 2
● digital speed
Trip odometer 2 and digital speed are
only available on vehicles with
Uplevel-Combi-Display.
Page 123 of 341

Instruments and controls121Reset trip odometer by pressing
SET/CLR on the turn signal lever for
a few seconds or by pressing the
reset knob between speedometer
and DIC with the ignition on.
On vehicles with trip computer, more
submenus are available.
Selection and indication can be
different between Midlevel-Display
and Uplevel-Combi-Display.
Trip/Fuel Information Menu, Trip
Computer 3 128.
ECO Information Menu
Press MENU to select s in the top
line of the Uplevel-Combi-Display.
Turn the adjuster wheel to select a
submenu. Press SET/CLR to confirm.Submenus are:
●Shift indication : Current gear is
indicated inside an arrow. The
figure above recommends
upshifting for fuel saving
reasons.
Eco index display : The current
fuel consumption is indicated on a segment display. For
economical driving, adapt your driving characteristic to keep the
filled segments within the Eco
area. The more segments are
filled, the higher the fuel
consumption. Simultaneously
the current consumption value is
indicated.
● Top Consumers : List of top
comfort consumers currently
switched on is displayed in
descending order. Fuel saving
potential is indicated. A switched off consumer disappears from
the list and the consumption
value will be updated.
During sporadic driving
conditions, the engine will
activate the heated rear window
automatically to increase the
engine load. In this event, the
heated rear window is indicated
as one of the top consumers,
without activation by the driver.
Page 127 of 341

Instruments and controls125Vehicle messages on the
Midlevel-Display
The vehicle messages are displayed
as code numbers.
No.Vehicle message2No radio remote control
detected, depress clutch pedal
to restart4Air conditioning off5Steering wheel is locked6Depress brake pedal to release
electric parking brakeNo.Vehicle message7Turn steering wheel, switch ignition off then on9Turn steering wheel, restart
engine12Vehicle 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 failureNo.Vehicle message26Left 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 spot alert
system49Lane departure warning
unavailable53Tighten fuel filler cap54Water in diesel fuel filter55Diesel particle filter is full
3 169
Page 128 of 341

126Instruments and controlsNo.Vehicle message56Tyre pressure imbalance on
front axle57Tyre pressure imbalance on
rear axle58Tyres without TPMS sensors
detected59Open then close driver window60Open then close front
passenger window61Open then close rear left
window62Open then close rear right
window65Theft attempted66Service anti-theft alarm system67Service steering wheel lock68Service power steering69Service suspension system70Service level control systemNo.Vehicle message71Service rear axle74Service AFL75Service air conditioning76Service side blind spot alert
system77Service lane departure warning79Top up engine oil81Service transmission82Change engine oil soon83Service adaptive cruise control84Engine power is reduced89Service vehicle soon94Shift to park position before
exiting95Service airbag128Bonnet open134Park assist fault, clean bumper136Service parking assistNo.Vehicle message145Check washer fluid level174Low vehicle battery258Parking assist off
Vehicle messages on the
Uplevel-Combi-Display
The vehicle messages are displayed
as text. Follow the instructions given
in the messages.
Page 129 of 341

Instruments and controls127The system displays messages
regarding the following topics:
● fluid levels
● anti-theft alarm system
● brakes
● drive systems
● ride control systems
● cruise control
● object detection systems
● lighting, bulb replacement
● wiper/washer system
● doors, windows
● radio remote control
● seat belts
● airbag systems
● engine and transmission
● tyre pressure
● diesel particle filter
● vehicle battery statusVehicle 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 or whilst
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 a programmed speed is exceeded.● If a warning message or awarning code appears in the
Driver Information Centre (DIC).
● If the parking assist detects an object.
● If an unintended lane change occurs.
● If the reverse gear is engaged and the rear carrier sytem
extended.
● If the diesel particle filter has reached the maximum filling
level.
When the vehicle is parked and/or the driver's door is opened
● 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.