Page 89 of 255

Instruments and controls87Every six months, run the petrol tank
down until control indicator Y
illuminates, then refuel. This helps
maintain fuel quality and system
function for petrol operation.
Fill the tank completely at regular intervals to prevent corrosion in the
tank.
Faults and remedies
If gas mode is not possible, check the
following:
● Is there enough liquid gas present?
● Is there enough petrol present for
starting?
Due to extreme temperatures in
combination with the gas
composition, it may take slightly
longer before the system switches
from petrol to gas mode.
In extreme situations, the system may also switch back to petrol mode if the
minimum requirements are not
fulfilled. If conditions allow, it may be
possible to manually switch back to
liquid gas operation.Seek the assistance of a workshop in
the event of all other faults.Caution
Repairs and adjustments may only be made by trained specialists in
order to maintain the safety and
warranty on the LPG system.
Liquid gas is given a particular odour
(odorised) so that any leaks can be
detected easily.
9 Warning
If you smell gas in the vehicle or in
the immediate vicinity, switch to petrol mode immediately. No
smoking. No naked flames or
ignition sources.
If the gas odour persists, do not start
the engine. Have the cause of the
fault remedied by a workshop.
When using underground car parks,
follow the instructions of the operator
and local laws.
Notice
In the event of an accident, switch off
the ignition and lights.
Fuel for liquid gas operation 3 177.
Engine coolant temperature gauge
Displays the coolant temperature.
50:engine operating temperature
not yet reached90:normal operating temperature130:temperature too high
Control indicator o illuminates if
engine coolant temperature is too
high.
Page 90 of 255

88Instruments and controlsCaution
If engine coolant temperature is
too high, stop vehicle, switch off
engine. Danger to engine. Check
coolant level.
Engine oil level monitor
The state of the engine oil level is
displayed in the Driver Information
Centre for a few seconds following
the service information after switching
on the ignition.
A proper state of oil level is indicated
by the message Oil level correct.
If oil level is low, I flashes and Oil
level incorrect is indicated,
accompanied by the H indicator.
Confirm oil level by using the oil
dipstick and top up engine oil
respectively. Engine oil 3 187.
A fault of measurment is indicated by
the message Oil level measurment
invalid . Check oil level manually by
using the dipstick.
Service display
The service system informs when to
change the engine oil and filter or a
vehicle service is required. Based on
driving conditions, the interval at
which an engine oil and filter change
is required can vary considerably.
Service information 3 223
A required service due is displayed in
the Driver Information Centre forseven seconds after switching on the
ignition.
If no service is required for the next
3000 km or more, no service
information appears in the display.
If service due is required within the
next 3000 km, the remaining distance or time duration is indicated for
several seconds. Simultaneously
symbol F lights up permamently as
reminder.
If service due is less than 1000 km,
F flashes and then lights up
permanently. Remaining distance or
time duration is indicated for several
seconds.
Overdued service is indicated by a
message in the Driver Information
Centre which indicates the overdued
distance. F flashes and then lights up
permanently until service is executed.
Reset of service interval After each service, the service
indicator must be reset to ensure
proper functionality. It is
recommended to seek the assistance
of a workshop.
If service is executed by yourself,
operate as following:
● switch off ignition
● press and hold button M or
CHECK
Page 91 of 255

Instruments and controls89● switch on ignition; the distanceindication begins a countdown
● when the display indicates =0,
release the button. Symbol F
disappears
Retrieving service information
To retrieve the status of the service
information at any time press button
M or CHECK . The service
information is displayed for a few
seconds.
Service information 3 223.
Control indicators
The 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 81.
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 3 191, Fuses
3 199.
Turn signals 3 114.
Seat belt reminder
Seat belt reminder on all seats X illuminates or flashes red in the
instrument cluster together with the
indication in the roof console for each
seat belt.
● When the ignition is switched on,
X in the instrument cluster and
the symbol for the respective
seat in the roof console comes
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90Instruments and controlson, if the seat belt of any
occupied seat has not been
fastened.
● After running up, X in the
instrument cluster and the
symbol for the respective seat in
the roof console flashes for a
certain time together with a
chime. After a certain time of
driving X illuminates constantly
until the seat belt of the
respective seat has been
fastened or if any passenger has
unfastened the seat belt.
Airbag and belt tensioners
v illuminates red.
When the ignition is switched on, the control indicator illuminates for
approx. four seconds. If it does not
illuminate, does not go out after
four 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 48, 3 51.
Airbag deactivation
Ó ON illuminates yellow.
The front passenger airbag is
activated.
* OFF illuminates yellow.
The front passenger airbag is
deactivated.
Airbag deactivation 3 56.
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.
Page 93 of 255

Instruments and controls91Illuminates 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
The engine management system has a 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
H illuminates yellow.
Illuminates briefly when the ignition is
switched on.May illuminate together with other
control indicators and a
corresponding message in the Driver
Information Centre.
Seek the assistance of a workshop
immediately.
Stop engine
Y illuminates red.
Illuminates briefly when the ignition is switched on.
Illuminates together with other control indicators, accompanied by a warning
chime and a corresponding message in the Driver Information Centre.
Stop engine immediately and seek
the assistance of a workshop.
System check
J illuminates yellow or red.
Illuminates yellow
A minor engine fault has been
detected.Illuminates red
A major engine fault has been
detected.
Stop engine as soon as possible and seek the assistance of a workshop.
Brake and clutch system
R illuminates red.
The brake and clutch fluid level is too
low, when manual parking brake is
not applied 3 189.9 Warning
Stop. Do not continue your
journey. Consult a workshop.
Illuminates when the manual parking
brake is applied and ignition is
switched on 3 148.
Antilock brake system (ABS)
u illuminates yellow.
Page 94 of 255

92Instruments and controlsIlluminates for a few seconds after theignition 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 3 148.
Gear shiftingR with the number of a higher gear is
indicated, when upshifting is
recommended for fuel saving
reasons.
Lane departure warning
) flashes yellow when the system
recognises an unintended lane
change.
Lane departure warning 3 173.
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 and
Traction Control system 3 149.
Electronic Stability Control and Traction Control system off
n illuminates yellow.
The systems are deactivated.
Engine coolant temperature
o illuminates red.
Illuminates when the engine is
running
Stop, switch off engine.Caution
Coolant temperature too high.
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Instruments and controls93Check coolant level immediately
3 188.
If there is sufficient coolant, consult a
workshop.
Preheating
! illuminates yellow.
Preheating of Diesel engine is
activated. Only activates when
outside temperature is low. Start the
engine when control indicator
extinguishes.
Diesel particle filter % or H illuminates yellow.
The diesel particle filter requires
cleaning.
Continue driving until the control
indicator extinguishes.
Illuminates temporarily Start of saturation of the particle filter.
Start cleaning process as soon as
possible by driving at a vehicle speed of at least 40 mph.Illuminates constantly
Indication of a low additive level. Seek
the assistance of a workshop.
Diesel particle filter 3 140.
AdBlue
Y flashes or illuminates yellow.
Illuminates yellow
The remaining driving range is
between 600 km and 2400 km.
Have the AdBlue® topped-up as soon as possible by a qualified workshop.
You can add up to 10 litres of
AdBlue® to its tank.
Flashes yellow
The remaining driving range is
between 0 and 600 km.
Top-up the AdBlue® as soon as
possible to avoid a breakdown by a
qualified workshop. You can add up
to 10 litres of AdBlue® to its tank.
Deflation detection system
w illuminates or flashes yellow.Illuminates
Tyre pressure loss in one or more
wheels. Stop immediately and check
tyre pressure.
Flashes
Fault in system. 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.
Page 96 of 255

94Instruments and controls3. Move out of the flow of traffic asquickly 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 3 187.
Low fuel
o illuminates yellow.
Level in fuel tank is too low.
Refuelling 3 178.
Bleeding the diesel fuel system
3 190.
Autostop
D illuminates or flashes green.
Illuminates green
Engine is in an Autostop.
Flashes green
Autostop is temporarily unavailable,
or Autostop mode is invoked
automatically.
Stop-start system 3 137.
Exterior light
8 illuminates green.
The exterior lights are on 3 110.
High beam
C illuminates blue.
Illuminated when high beam is on or
during headlight flash 3 111.
High beam assist
f illuminates green.
The high beam assist is activated,
see Adaptive forward lighting 3 112.Low beam
9 illuminates green.
Illuminated when low beam is on.
Fog light
> illuminates green.
The front fog lights are on 3 114.
Rear fog light ø illuminates yellow.
The rear fog light is on 3 115.
Rain sensor < illuminates green.
Illuminated when rain sensor position
on wiper stalk is selected.
Side blind spot alert
B illuminates green.
The system is active.
Cruise control
m illuminates in the Driver
Information Centre.