Page 105 of 321

Instruments and controls103Control indicatorsThe control indicators described are
not present in all vehicles. The
description applies to all instrument
versions. Depending on the
equipment, the position of the control
indicators may vary. When the
ignition is switched on, most control
indicators will illuminate briefly as a functionality test.
The control indicator colours mean:red=danger, important reminderyellow=warning, information, faultgreen=confirmation of activationblue=confirmation of activationwhite=confirmation of activation
See all control indicators on different
instrument clusters 3 94.
Turn signal
O illuminates or flashes green.
Illuminates briefly The parking lights are switched on.
Flashes
A turn signal or the hazard warning
flashers are activated.
Rapid flashing: failure of a turn signal
light or associated fuse, failure of turn
signal light on trailer.
Bulb replacement 3 225, Fuses
3 235.
Turn signals 3 131.
Seat belt reminder Seat belt reminder on front
seats X for driver's seat illuminates or
flashes red in the instrument cluster.
k for front passenger seat illuminates
or flashes red in the centre console,
when seat is occupied.
Illuminates
After the ignition has been switched on until the seat belt has been
fastened.Flashes
After having started the engine for a maximum of 100 seconds until the
seat belt has been fastened.
Seat belt status on rear seats,
base level instrument cluster
X flashes or illuminates in the Driver
Information Centre.
Illuminates
After having started the engine when
the seat belt has been fastened.
Flashes
After starting off when the seat belt is
unfastened.
Fastening the seat belt 3 54.
Seat belt status on rear seats,
midlevel and uplevel instrument cluster
X illuminates red or green or grey in
the instrument cluster, after having
started the engine.
Illuminates red
Seat occupied and the seat belt is
unfastened.
Page 106 of 321

104Instruments and controls
Illuminates green
Seat occupied and the seat belt has
been fastened.
Illuminates grey
Seat not occupied.
Fastening the seat belt 3 54.
Airbag 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 53, 3 57.
Airbag deactivation
V illuminates yellow.
The front passenger airbag is
activated.
* illuminates yellow.
The front passenger airbag is
deactivated 3 62.9 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.
Page 107 of 321

Instruments and controls105Malfunction indicator lightZ 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.
Brake and clutch system R illuminates red.
The brake and clutch fluid level is too low 3 221.9
Warning
Stop. Do not continue your
journey. Consult a workshop.
Illuminates after the ignition is
switched on if the manual parking
brake is applied 3 166.
Operate pedal - illuminates or flashes yellow.
Illuminates
Brake pedal needs to be depressed
to release the electric parking brake
3 166.
Clutch pedal needs to be depressed
to start the engine in Autostop mode.
Stop-start system 3 156.
Flashes
Clutch pedal needs to be depressed
for a main start of the engine 3 16,
3 154.
On Midlevel and Uplevel display the
operate pedal message is indicated in the Driver Information Display
3 119.
Electric parking brake
m illuminates or flashes red.
Illuminates
Electric parking brake is applied
3 166.
Flashes Electric parking brake is not fully
applied or released. Depress the brake pedal and attempt to reset thesystem by first releasing and 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.
Illuminates
Electric parking brake is operating
with degraded performance 3 166.
Page 108 of 321

106Instruments and controls
Flashes
Electric parking brake is in service
mode. Stop vehicle, apply and
release the electric parking brake to
reset.9 Warning
Have the cause of the fault
remedied immediately by a
workshop.
Antilock brake system
(ABS) u illuminates yellow.
Illuminates for a few seconds after the ignition is switched on. The system is
ready for operation when the control
indicator extinguishes.
If the control indicator does not go out after a few seconds, or if it illuminates while driving, there is a fault in the
ABS. The brake system remains
operational but without ABS
regulation.
Antilock brake system 3 165.
Upshift
[ is shown as a symbol in the Driver
Information Centre, when upshifting
is recommended for fuel saving
reasons.
On some versions gear shift
indication is popped up as full page in the Driver Information Centre 3 110.
Gear shifting R or S with the number of the next
higher or lower gear is indicated,
when up- or down-shifting is
recommended.
Variable effort steering c illuminates yellow.
Fault in variable effort steering
system. This may lead to a higher or
lower steering effort. Consult a
workshop.Following distance
E indicates the following distance
setting of adaptive cruise control or the alert timing sensitivity of forwardcollision alert by filled distance bars.
Adaptive cruise control 3 175.
Forward collision alert 3 183.
Lane departure warning ) illuminates green or flashes yellow.
Illuminates green
The system is switched on and ready
to operate.
Flashes yellow
The system recognizes 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
Page 109 of 321

Instruments and controls107
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 3 189.
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 deteriorate depending 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 3 169,
Traction Control system 3 168.
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.
Flashes
The maximum filling level of the filter
is reached. Start cleaning process
immediately to avoid damage to the
engine.
Diesel particle filter 3 159, Stop-start
system 3 156.
Tyre pressure monitoring
system
w illuminates or flashes yellow.
Illuminates
Tyre pressure loss. Stop immediately
and check tyre pressure.
Page 110 of 321

108Instruments and controls
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
assistance of a workshop 3 217.
Low fuel
i or Y 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 3 160.
Bleeding the diesel fuel system
3 223.
Immobiliser
d flashes yellow.
Fault in the immobiliser system. The
engine cannot be started.
Autostop
D illuminates when engine is in an
Autostop.
Stop-start system 3 156.
Exterior light
8 illuminates green.
The exterior lights are on 3 125.
High beam
C illuminates blue.
Page 111 of 321

Instruments and controls109
Illuminated when high beam is on or
during headlight flash 3 126.
High beam assist
l illuminates green.
The high beam assist is activated,
see adaptive forward lighting 3 128.
Adaptive forward lighting
f illuminates or flashes yellow.
Illuminates Fault in the system.
Seek the assistance of a workshop.
Flashes
System is switched to symmetrical
low beam.
Control indicator f flashes for approx.
4 seconds after the ignition is
switched on as a reminder for
symmetrical headlight 3 128.
Fog light > illuminates green.The front fog lights are on 3 131.
Rear fog light
r illuminates yellow.
The rear fog light is on 3 132.
Cruise control
m illuminates white or green.
Illuminates white
The system is on.
Illuminates green
Cruise control is active. Set speed is
indicated on midlevel or uplevel
display near m symbol.
Cruise control 3 173.
Adaptive cruise control
C or m illuminates white or green.
Illuminates white
The system is on.Illuminates green
Adaptive cruise control is active. Set
speed is indicated near C or m
symbol.
Adaptive cruise control 3 175.
Vehicle detected ahead A illuminates green or yellow.
Illuminates green
A vehicle ahead is detected in the
same lane.
Illuminates yellow
The distance to a preceding moving
vehicle gets too small or when
approaching another vehicle too rapidly.
Forward collision alert 3 183,
Adaptive cruise control 3 175.
Speed limiter L illuminates white or green.
Illuminates white
The system is on.
Page 112 of 321

110Instruments and controls
Illuminates green
Speed limiter is active. Set speed is
indicated near L symbol.
Speed limiter 3 174.
Traffic sign assistant
L displays detected traffic signs as
control indicator.
Traffic sign assistant 3 200.
Door open h illuminates red.
A door or the tailgate is open.Information displays
Driver Information Centre The Driver Information Centre (DIC)
is located in the instrument cluster.
Depending on the version and the
instrument cluster, the Driver
Information Centre is available as
Baselevel display, Midlevel display or Uplevel display.
DIC indicates depending on the
equipment:
■ overall and trip odometer
■ vehicle information
■ trip/fuel information
■ economic information
■ performance information
■ vehicle and warning messages
■ audio and infotainment information
■ phone information
■ navigation information
■ vehicle settingsBaselevel display
The menu pages of the Baselevel
display are selected by pressing the
MENU button on the turn signal lever.
Main menu symbols are indicated in
the top line of the display:
■ W Info Menu
■ X Settings Menu
■ s Economic Menu
Some of the displayed functions differ between vehicle driving and standstilland some functions are only active
when the vehicle is driving.