Engine electronics check (petrol engine)35 Safety systems35
Tyre pressure
35
Brake linings
36
Fuel reserve
36
Lane departure warning (Lane Assist)
36
Turn signal system
36
Trailer turn signal lights
36
Fog lights
36
Speed regulating system / Speed limiter
37
Brake pedal (automatic transmission)
37
Parking brake - Auto Hold function
37
Main beam
37
Automatic transmission
37
Rear seat belt warning light
37
Alternator
37
Coolant
38
Engine oil pressure too low
38
Engine oil level
38
AdBlue ®
39
Lamp failure
39
Diesel particulate filter (diesel engine)
39
Windscreen washer fluid level
40
Headlamp assistant
40
START-STOP system
40
Low temperature displayed
40
Water in the fuel filter (diesel engine)
40
Automatic Distance Control (ACC)
40
Distance warning (Front Assist)
40
Advance warning / emergency braking (Front Assist)
41
Economy mode
41
Adaptive chassis control (DCC) fault
41
Service
41
The warning lights in the instrument cluster indicate certain functions or
faults.
Some warning lights can be accompanied by acoustic signals and messages in
the display of the instrument cluster.
After switching on the ignition, some warning lights light up briefly as a func-
tion test.
If the tested systems are OK, the corresponding warning lights go out a few
seconds after switching on the ignition or after starting the engine.
Warning lights in the display
Depending on the importance the warning light
(danger) or
(warning) illu-
minate along with some of the warning lights in the list with the warning
lights.
Depending on vehicle specification, some warning lights may be displayed in
colour on the display. For example. the coolant warning lamp may be represen-
ted as follows.
▶ - Segment Display / monochromatic (“black and white”) MAXI DOT display
▶ - colour MAXI DOT displayWARNING■
Ignoring illuminated warning lights and related messages or instructions
in the display of the instrument cluster may lead to serious personal injury
or damage to the vehicle.■
If you have to stop for technical reasons, then park the vehicle at a safe
distance from the traffic, switch off the engine and switch on the hazard
warning lights » page 71. Place the warning triangle at the prescribed dis-
tance.
■
The engine compartment of your car is a hazardous area. The following
warning instructions must be followed at all times when working in the en-
gine compartment » page 206, Engine compartment .
Parking brake
Read and observe
on page 32 first.
illuminates - the hand brake light is switched on.
Parking brake error
illumi-
nates
Fault: electric parking brakePARKING BRAKE FAULT
Seek help from a specialist garage.
Parking on a slope that is too steep
illumi-
nates
Parking brake: grad. too steep. Owner's manual!GRADIENT TOO STEEP
32Using the system
AdBlue®
Read and observe
on page 32 first.
AdBlue ®
level too low
Information on the amount of AdBlue ®
to be added is also shown. The values
"min" and "max" stand for the minimum and maximum AdBlue ®
replenishment
amounts.
illuminates
Add AdBlue (DEF)! Range:ADD ADBLUE (DEF) … RANGE …
The range in the display indicates the distance that can be driven with the re-
maining AdBlue ®
left in the tank.
Add AdBlue ®
» page 204 .
illumi-
nates
Add AdBlue (DEF)! No engine start in ….ADD ADBLUE (DEF)_NO START IN …
The value in the display indicates the distance that can still be travelled, after
which no engine restart is possible unless AdBlue ®
is added.
Add AdBlue ®
» page 204 .
illumi-
nates
Add AdBlue (DEF)! Engine start disabled.ADD ADBLUE (DEF) RESTART DISABLED
It is no longer possible to start the engine.
Add AdBlue ®
» page 204 .
AdBlue ®
fault
illumi-
nates
Error: AdBlue (DEF). No engine start in ….ADBLUE (DEF) ERROR NO START IN …
There is a fault in the AdBlue ®
system.
The value in the display indicates the distance to travel, after which no engine
restart is possible.
Seek help from a specialist garage.
illumi-
nates
Error: AdBlue (DEF). Engine start disabled.ADD ADBLUE (DEF) RESTART DISABLED
There is a fault in the AdBlue ®
system.
It is no longer possible to start the engine.
Seek help from a specialist garage.
Lamp failure
Read and observe
on page 32 first.
illuminates – one of the lamps is defective. A message will appear con-
cerning the affected lamp.
An example message in the display of the instrument cluster
Check right dipped headlight beam!DIPPED HEADLIGHT CHECK RIGHT
Diesel particulate filter (diesel engine)
Read and observe
on page 32 first.
The diesel particulate filter separates the soot particles from the exhaust. The soot particles collect in the diesel particulate filter where they are burnt on a
regular basis.
illuminates – the filter is clogged with soot.
To clean the filter, and where traffic conditions permit »
, drive as follows for
at least 15 minutes or until the indicator light goes out.
4th or 5th gear engaged (automatic gearbox: Position D/S).
Vehicle speed at least 70 km/h.
Engine speed between 1800 - 2500 rpm.
If the filter is properly cleaned, the warning light extinguishes.
If the filter is not properly cleaned, the warning light does not go out and
the warning light begins to flash.
Particulate filter: owner's manual!PARTICLE FILTER OWNER MANUAL
Seek help from a specialist garage.
39Instruments and warning lights
Lights and visibility
Lights
Introduction
This chapter contains information on the following subjects:
Operating the lights
67
Daylight running lights (DAY LIGHT)
68
Turn signal and main beam
68
Automatic driving lamp control
69
Xenon headlight
69
Front and rear fog lights
70
Fog lights with the CORNER function
71
COMING HOME / LEAVING HOME
71
Hazard warning light system
71
Parking lights
72
Driving abroad
72
Unless otherwise stated, the lights only work when the ignition is switched on.
The arrangement of the controls right-hand drive models may differ from the
layout shown in » Fig. 54 on page 67 . The symbols which mark the positions
of the controls are identical.
Keep the headlights lenses clean » page 197, Headlight glasses .
WARNINGThe automatic driving lamp control only operates as a support and
does not release the driver from his responsibility to check the lights and, if
necessary, to switch on the light depending on the prevailing light condi-
tions.Note■ The headlights may mist up temporarily. When the driving lights are switched
on, the light outlet surfaces are free from mist after a short period, although
the headlight lenses may still be misted up in the peripheral areas. This mist
has no influence on the life of the lighting system.■
If the visibility is poor and the lights are not on (except daytime running light)
the brightness of the instrument lighting reduces to alert the driver to switch
on the lights in due time.
■
The brightness of the instrument lighting with the lights on (except daytime
running lights) can be set in the Infotainment » Owner´s Manual Infotainment ,
chapter CAR - Vehicle Settings .
Operating the lights
Fig. 54
Light switch and control dial for
the headlight beam range regu-
lation
Read and observe on page 67 first.
Switching lights on and off
Depending on the equipment configuration, the light switch
A
» Fig. 54 can be
turned to one of the following positions.
Switching off lights (except daytime running lights)Switching lights on/off automatically » page 69
Switching on the side light or parking light » page 72
Switching on the low beam
Headlight range control
Turn the dial
B
» Fig. 54 from position
to
to gradually adjust the headlight
range control and shorten the light cone.
The positions of the width of illumination correspond approximately to the fol-
lowing car load.
Front seats occupied, boot empty
All seats occupied, boot empty
67Lights and visibility
All seats occupied, boot loaded
Driver seat occupied, boot loaded
Xenon headlight
The Xenon bulbs adapt automatically to the load and driving state of the vehi-
cle when the ignition is switched on and when driving. Vehicles that are equip-
ped with Xenon headlights do not have a manual headlight range adjustment
control.WARNINGAlways adjust the headlight range control to meet the following conditions.■The vehicle does not dazzle other road users, especially oncoming vehi-
cles.■
The beam range is sufficient for safe driving.
Note
■ The light switch is in position or and the ignition is turned off, the low
beam is switched off automatically 1)
and the status light is lit. The side light is
switched off when the ignition key is removed, for vehicles with the KESSY
system after switching off the ignition and opening the driver's door.■
If there is a fault in the light switch, the low beam comes on automatically.
Daylight running lights (DAY LIGHT)
Read and observe
on page 67 first.
The daytime running lights light up the area in front of and to the rear of the
vehicle (only applicable for some countries).
The lights are switched on automatically if the following conditions are met. The light switch is in the position
or
.
The ignition is switched on.
WARNINGAlways switch on the low beam when visibility is poor.Turn signal and main beamFig. 55
Operating lever: Turn signal and
main beam operation
Read and observe on page 67 first.
Operating lever positions » Fig. 55
Activate right turn signal light - indicator light flashes in the instrument cluster
Activate left turn signal light - indicator light flashes in the instrument
cluster
Depending on equipment (spring-tensioned position):
▶ Switch on main beam – indicator light lights up in the instrument cluster
▶ Activate headlamp assistant » page 72
Depending on equipment (spring-tensioned position):
▶ Switch off main beam / headlight flasher on (spring-tensioned position)
▶ Deactivate headlamp assistant / activate headlight flasher (spring-ten-
sioned position)
The main beam can only be switched on when the low beam lights are on.
The headlight flasher can be operated even if the ignition is switched off.
The turn signal light switches itself off automatically when driving around a
curve or after making a turn.
“Convenience turn signal”
When the control lever is lightly pressed to the pressure point
A
or
B
then
the respective turn-signal lamp flashes three times.
ABCD1)
Does not apply to the position
, as long as the conditions are met for the COMING HOME function
» page 71 .
68Using the system
If during the “comfort flashing” the operating lever in the opposite side is
pressed, then the blinking stops.
The “Lane change flash” can be activated/deactivated in the Infotainment
» Owner´s Manual Infotainment , chapter CAR - vehicle settings .WARNINGOnly turn on the main beam or the headlight flasher if other road users will
not be dazzled.
Automatic driving lamp control
Fig. 56
Light switch: AUTO position
Read and observe on page 67 first.
The light switch is in position
» Fig. 56 then depending on the equipment
the automatic switch on / off the lights corresponding to the light or weather
conditions (rain) takes place.
The sensitivity of the sensor for the determination of the ambient light can be
adjusted in the infotainment » Owner´s Manual Infotainment , chapter CAR -
vehicle settings .
If the light switch is in position
, the lettering
illuminates next to the
light switch. If the light is switched on automatically, the symbol
next to the
light switch also lights up.
Automatic driving light control during rain
The dipped beam is switched on automatically if the following conditions are
met.
The function is activated.
The light switch is in the position
.
The windscreen wipers are on for more than 30 s.
The light turns off about 4 minutes after turning off the wipers.
Automatic headlight control in rain can be activated or deactivated in the Info-
tainment » Owner´s Manual Infotainment , chapter CAR - Vehicle settings .
CAUTION
Poorer visibility is evaluated by a motor mounted below the windscreen in the
holder of the interior mirror sensor. Do not attach any stickers or similar ob-
jects in front of the light sensor on the windscreen in order to avoid impairing
the function or its reliability.
Xenon headlight
Read and observe
on page 67 first.
The xenon headlight (hereinafter referred as system) ensures that the roads
are illuminated independent of the traffic and weather conditions.
The system automatically adjusts the cone of light in front of the vehicle based
on the driving information (such as vehicle speed and loading situation, use of
the windscreen wipers, selected driving profile, vehicle position according to
the data from Infotainment navigation).
The system works as long as the light switch is in position .
The system operates automatically in the following modes.
Out of town mode
The cone of light in front of the vehicle is similar to the low beam.
City mode
The cone of light in front of the vehicle is adjusted so that it also illuminates
the adjacent pavements, crossings, pedestrian crossings etc. The mode is ac-
tive at a speed of 15-50 km / h.
Motorway mode
The cone of light in front of the vehicle is adjusted so that the driver can re-
spond in time to an obstruction or other hazard in time. The mode is active at
speeds above 110 km/h.
Rain mode
The cone of light in front of the vehicle is adjusted so that the driver can re-
duce the glare from oncoming vehicles in rain.
The mode is active at speeds of 50 – 90 km/h and if the windscreen wipers
continuously operate for a period of time longer than about 2 minutes. The de-
activation of the mode is carried out a few minutes after switching off the wip-
er.
69Lights and visibility
Fog lights with the CORNER functionRead and observe
on page 67 first.
The function CORNER provides better illumination of the nearby environment
when turning, manoeuvring or anything similar.
The function automatically switches on the fog lights on each side of the ve- hicle, if the following conditions are met.
The turn signal is switched on or the front wheels are turned sharply 1)
.
The vehicle speed is below 40 km/h.
The low beam is switched on.
The fog lights are not switched on.
Note
The two fog lights are switched on when you shift into the reverse gear.
COMING HOME / LEAVING HOME
Read and observe
on page 67 first.
The function COMING HOME ensures that the vehicle's environment is illumi-
nated after switching off the ignition and opening the driver's door.
The function LEAVING HOME ensures that the vehicle's environment is illumi-
nated after unlocking the vehicle with the radio remote control unit.
The function switches the light on only if there is poorer visibility and the light
switch is in the position .
Enabling / disabling and setting functions
The functions and setting of the lighting duration can be activated or deactiva-
ted in the Infotainment system » Owner´s Manual Infotainment , chap-
ter CARVehicle settings .
CAUTION■
Poorer visibility is evaluated by a motor mounted below the windscreen in
the holder of the interior mirror sensor. Do not attach any stickers or similar
objects in front of the light sensor on the windscreen in order to avoid impair-
ing the function or its reliability.■
If this option is always enabled, then the battery is heavily loaded.
Hazard warning light system
Fig. 58
Button for hazard warning light
system
Read and observe on page 67 first.
The hazard warning lights make other road users aware of your vehicle.
The function switches on all indicators.
Switching on and off
›
Press the button
» Fig. 58 .
When you turn it on the warning light
flashes in the button and at the same
time the warning lights
in the instrument cluster.
The hazard warning light system can also be operated if the ignition is switch-
ed off.
If one of the airbags is deployed, the hazard warning light system will switch
on automatically.
The automatic activation of hazard warning lights can take place during a
heavy braking. After starting or accelerating the hazard warning system is au-
tomatically switched off.
1)
If both switch-on conditions are conflicting, for example, if the front wheels are turned to the left and
the right turn signal light is switched on, the turn signal light has the higher priority.
71Lights and visibility
When the hazard warning system is on and the indicator light is switched on
(e.g. when turning), the hazard warning lights are switched off temporarily and
only the turn signal flashes on the relevant side of the vehicle.
Parking lights
Read and observe
on page 67 first.
The side light is provided for lighting of the parked vehicle.
Switching on the side light
on one side
›
Switch off the ignition.
›
Press the control lever to position
A
or
B
as far as the stop » Fig. 55 on
page 68 .
The parking lights on the right or left side of the vehicle are turned on.
Switching on the side light on both sides
›
With the ignition switched on turn the light switch to position .
›
Switch off the ignition.
›
Lock the vehicle.
After pulling out the ignition key and opening the driver's door, an audible
warning sounds.
After a few seconds or after closing the driver's door, the audible alarm is
turned off, but the parking lights will remain switched on.
CAUTION
■ Turning on the parking light means the battery is heavily loaded.■The parking light cannot be turned off automatic due to the low battery
charge level.■
If the two-sided parking lights are switched on when the ignition is off, then
there is no automatic switching off of the parking light.
Driving abroad
Read and observe
on page 67 first.
When driving in countries with opposing traffic system (traffic on the
left/right), your headlights may dazzle oncoming traffic. In order to avoid this,
the headlights must be adjusted at a specialist garage.
You can adjust the Xenon headlights yourself by setting the travel mode in In- fotainment » Owner´s Manual Infotainment , chapter CARVehicle settings .
Headlamp Assistant (Light Assist / Dynamic Light Assist)
Introduction
Fig. 59
Camera view window for the
headlamp assistant
This chapter contains information on the following subjects:
Function
73
Switching on and off
73
Information messages
73
The headlamp assistant (following as system) can prevent the dazzling of oth-
er road users.
The system automatically switches the high beam on / off, if necessary, ad-
justs the beam of the headlights in accordance with the existing traffic (other
vehicles) and environmental conditions (e.g. driving through a lighted village).
The switching on / off of the high beam, if necessary adaptation of the head-
lamp is controlled by a camera » Fig. 59.
Depending on the equipment, the following system versions can exist. ▶
Light Assist
▶
Dynamic Light AssistLight Assist
The system automatically switches the high beam on / off.
Dynamic Light Assist
The system automatically adjusts the light cone shape of the headlights in or-
der to prevent the dazzling oncoming and preceding vehicles, while ensuring
the highest possible illumination of the road edges.
72Using the system
In the following cases, the automatic adjustment of the cone of light of the
headlights is disabled, the system automatically switches only the high beam
on/off.
▶ The driving mode Eco is selected » page 171, Selection of the driving
mode(Driving Mode Selection) .
▶ The driving mode Travel mode is selected » page 70, travel mode .
In the following case the Dynamic Light Assist
is disabled.
▶ The system is in rain or fog mode » page 69, Xenon headlight .
WARNINGThe system only serves as a support and does not relieve the driver of his
or her responsibility to check the headlights and low beam and, if necessa-
ry, to switch on the lights depending on the light conditions. The manual
operation may be required for example, in the following situations.■
When visibility is poor, e.g. fog, heavy rain, or thick snowfall.
■
Passing poorly lit road users, e.g. cyclists or pedestrians.
■
When driving around “sharp” bends.
■
Driving through poorly-lit locations.
■
The camera viewing range is obstructed by an obstacle.
CAUTION
Do not attach any stickers or similar objects to the windscreen to avoid impair-
ing the functions of the systems.
Function
Read and observe
and on page 73 first.
Operating conditions
The system works under the following conditions.
The light switch is in the position
.
The system is activated.
The system is activated » page 73, Switching on and off .
The vehicle speed is over 60 km / h or for some countries more than 40
km / h.
The headlight switches off automatically when the speed falls below 30 km/h.
The system can be activated/deactivated in the Infotainment » Owner´s Man-
ual Infotainment , chapter CAR - vehicle settings .
Switching on and offFig. 60
Operating lever: Headlamp assis-
tant
Read and observe and on page 73 first.
Switching on
›
Place the lever in position
A
(spring-tensioned position) » Fig. 60.
The instrument cluster illuminates the warning light of the systems switch-
ed on.
Switching off
›
If the headlight is switched on automatically, move the lever into position
B
(spring-tensioned position) » Fig. 60.
The warning light goes out. The high beam turns off.
›
If the headlight
is not currently switched on automatically, move the lever in-
to position
A
(spring-tensioned position) .
The warning light goes out. The high beam turns on.
Information messages
Read and observe
and on page 73 first.
The messages and information are indicated in the instrument cluster display.
Fault: Light AssistLIGHT ASSIST FAULT
Seek help from a specialist garage.
Light Assist: clean the windscreen!WINDSCREEN PLEASE CLEAN
Check for any obstacles on the windscreen in the viewing area of the camera.
73Lights and visibility