
LightsVehicle features and op‐
tions
This chapter describes all standard, country-
specific and optional features offered with the series. It also describes features that are notnecessarily available in your car, e. g., due to
the selected options or country versions. This
also applies to safety-related functions and sys‐
tems. The respectively applicable country provi‐
sions must be observed when using the respec‐
tive features and systems.
Overview Switches in the vehicle
The light switch elements is located next to the
steering wheel.
Light functions
SymbolFunctionRear fog lightsFront fog lightsAutomatic headlight controlSymbolFunctionLights off
Daytime running lightsParking lightsLow beamsInstrument lighting
Parking lights, corner‐
ing lights and roadside
parking lights
General information Position of switch:
, ,
If the driver door is opened with the ignition
switched off, the exterior lighting is automati‐
cally switched off at these switch settings.
Parking lights
Position of switch:
The vehicle is illuminated on all sides.
Do not use the parking lights for extended peri‐
ods; otherwise, the battery may become dis‐
charged and it would then be impossible to
start the engine.
When parking, switch on the one-sided road‐
side parking lamp, refer to page 96.
Low beams Position of switch:
The low beams light up when the ignition is
switched on.
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Roadside parking lights
The concept
The vehicle can be illuminated on one side.
Switching on
With the ignition switched off, press the lever
either up or down past the resistance point for
approx. 2 seconds.
Switching off Briefly press the lever to the resistance point in
the opposite direction.
Welcome lights and
headlight courtesy de‐ lay feature
Welcome lights
General information
Depending on the equipment, when switching
off the vehicle, switch position
or .
Depending on the ambient brightness, individ‐
ual light functions may be switched on briefly,
when the vehicle is unlocked.
Activating/deactivating
1. "Settings"2."Lighting"3."Welcome lights"Settings are stored for the profile currently
used.
Headlight courtesy delay feature
General information The low beams stay lit for a short while if the
headlight flasher is switched on after the vehi‐
cle's radio-ready state is switched off.
Setting the duration1. "Settings"2."Lighting"3."Pathway lighting:"4.Set length of time.
Settings are stored for the profile currently
used.
Automatic headlight
control
The concept
The low beams are switched on and off auto‐
matically depending on the ambient bright‐
ness, e.g. in tunnels, in twilight or if there is
precipitation.
General information
A blue sky with the sun low on the horizon can
cause the lights to be switched on.
When emerging from a tunnel during the day,
the low beams are not switched off immedi‐
ately but instead only after approx. 2 minutes.
Activating Position of switch:
The indicator lamp in the instrument cluster is
illuminated, when the low beams are switched
on.
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System limits
The automatic headlamp control cannot serve
as a substitute for your personal judgment of
lighting conditions.
E. g. the sensors are unable to detect fog or
hazy weather. To avoid safety risks under these
conditions, you should always switch on the
lights manually.
Daytime running lights General information
Position of switch:
, ,
The daytime running lights light up when the
ignition is switched on. After the ignition is
switched off, the parking lights light up in posi‐
tion
.
Activating/deactivating
In some countries, daytime running lights are
mandatory, so it may not be possible to deacti‐ vate the daytime running lights.
On the Control Display:
1. "Settings"2."Lighting"3."Daytime running lamps"
Settings are stored for the remote control cur‐
rently used.
Cornering lamp General information Position of switch:
When going around corners, the cornering light
also lights the interior area of the curve. Below
a speed of approx. 25 mph/40 km/h when the
turn signal is switched on and the steering an‐
gle is detected, there is automatic activation.
Malfunction
A Check Control message is displayed.
Cornering light is malfunctioning or has failed.
Have the system immediately checked by a
dealer’s service center or another qualified
service center or repair shop.
High-beam Assistant The concept The high-beam Assistant detects other traffic
participants early on and automatically
switches the high beams on or off depending
on the traffic situation. The assistant ensures
that the high beams are switched on, whenever
the traffic situation allows. In the low speed
range, the high beams are not switched on by
the system.
General information The system responds to light from oncoming
traffic and traffic driving ahead of you, and to
adequate illumination, e.g., in towns and cities.
The driver can intervene at any time and switch
the high beams on and off as usual.
Activating1.Depending on the equipment, turn the light
switch into position
or .
2.Press button on the turn signal lever, arrow.
The indicator lamp in the instrument
cluster lights up.
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When the low beams are on, the lights are au‐
tomatically brightened or dimmed.
The blue indicator lamp in the instru‐
ment cluster lights up when the system
switches on the high beams.
Deactivating The High-beam Assistant is deactivated when
manually switching the high beams on and off,
refer to page 68.
To reactivate the High-beam Assistant, press
the button on the turn signal lever.
System limits The High-beam Assistant cannot serve as a
substitute for the driver's personal judgment of when to use the high beams. Therefore, man‐
ually switch off the high beams in situations
where required to avoid a safety risk.
The system is not fully functional in the follow‐
ing situations, and driver intervention may be
necessary:▷In very unfavorable weather conditions,
such as fog or heavy precipitation.▷When detecting poorly-lit road users such
as pedestrians, cyclists, horseback riders
and wagons; when driving close to train or
ship traffic; and at animal crossings.▷In tight curves, on hilltops or in depressions,
in cross traffic or half-obscured oncoming
traffic on highways.▷In poorly-lit towns and cities and in the
presence of highly reflective signs.▷When the windshield behind the interior
mirror is fogged over, dirty or covered with
stickers, etc.
Fog lights
Front fog lights
The low beams must be switched on.
Press button. The green indicator lamp
lights up.
If the automatic headlight control, refer to
page 96, is activated, the low beams will come
on automatically when you switch on the front
fog lights.
When the high beams or headlight flasher are
activated, the front fog lights are not switched
on.
Rear fog lights
The low beams or front fog lights must be
switched on.
Press button. The yellow indicator
lamp lights up.
If the automatic headlight control, refer to
page 96, is activated, the low beams will come
on automatically when you switch on the rear
fog lights.
Instrument lightingAdjusting The parking lights or low beams
must be switched on to adjust
the brightness.
Adjust the brightness with the
thumbwheel.
Interior lights General information
The interior lights, footwell lights, access lights
and courtesy lights are controlled automati‐
cally.
Thumb wheel for the instrument lighting con‐
trols brightness of some of these features.Seite 98CONTROLSLights98
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Overview1Interior lights2Reading lights3Ambient light
Switching the interior lights on and offPress button.
To switch off permanently: press the button for
approx. 3 seconds.
Switch back on: press button.
Switching the reading lamps on and off manually
Press button.
Reading lights are located in the front next to
the interior light.
Ambient light
Depending on your optional features lighting
can be adjusted for some lights in the interior.
Activating/deactivating
On the Control Display:
1. "Settings"2."Lighting"3."Ambient:"
Settings are stored for the profile currently
used.
Changing color
Push the switch forward or back:
manual color change.
Push and hold the switch forward or
back: automatic color change. Push
the switch again to end color changes.
Setting the brightness The brightness of the ambient light can be ad‐
justed via the thumbwheel for the instrument
lighting or on the Control Display.
On the Control Display:1. "Settings"2."Lighting"3."Brightness:"4.Adjust the brightness.Seite 99LightsCONTROLS99
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tion, the airbag system could not trigger as in‐
tended in the event of an accident despite re‐
spective accident severity. There is risk of
injuries or danger to life. Have the airbag sys‐
tem checked, repaired, dismantled and scrap‐
ped by a dealer’s service center or another
qualified service center or repair shop. ◀
Correct function When the ignition is switched on, the
warning lamp in the instrument cluster
lights up briefly and thereby indicates
the operational readiness of the entire airbag
system and the belt tensioner.
Airbag system malfunctioning▷Warning lamp does not come on when the
ignition is turned on.▷The warning lamp lights up continuously.
Automatic deactivation of the front-
seat passenger airbags
The concept
The system reads if the front passenger seat is
occupied by measuring the human body's re‐
sistance.
Front, knee and side airbag on the front pas‐
senger's side are either activated or deacti‐
vated.
Information Before transporting a child on the front passen‐
ger seat, refer to the safety notes and instruc‐
tions for children on the front passenger seat,
see Children.
WARNING
The ensure the front-seat passenger air‐
bag function, it must be detected, whether a
person occupies the front passenger seat. The
entire seat cushion area must be used for this
purpose. There is risk of injuries or danger to
life. Make sure that the front passenger keeps
his or her feet in the floor area. ◀
Malfunction of the automatic deactivation system
When transporting older children and adults,
the front-seat passenger airbags may be deac‐
tivated in certain sitting positions. In this case,
the indicator lamp for the front-seat passenger
airbags lights up.
In this case, change the sitting position so that
the front-seat passenger airbags are activated
and the indicator lamp goes out.
If it is not possible to activate the airbags, have
the person sit in the rear.
To enable correct recognition of the occupied
seat cushion.▷Do not attach covers, cushions, ball mats or
other items to the front passenger seat un‐
less they are specifically determined to be
safe for use on the front passenger seat.▷Do not place any electronic devices on the
passenger seat if a child restraint system is
to be installed on it.▷Do not place objects under the seat that
could press against the seat from below.▷No moisture in or on the seat.
Indicator lamp for the front-seat
passenger airbags
The indicator lamp for the front-seat passenger
airbags indicates the operating state of the
front-seat passenger airbags.
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Status displayThe current status of the Tire Pressure Monitor
TPM can be displayed on the Control Display,
e.g., whether or not the TPM is active.
On the Control Display:1. "Vehicle info"2."Vehicle status"3. "Tire Pressure Monitor (TPM)"
The status is displayed.
Status control display Tire and system status are indicated by the
color of the tires and a text message on the
Control Display.
All wheels green System is active and will issue a warning rela‐
tive to the tire inflation pressures stored during
the last reset.
One wheel is yellowA flat tire or major drop in inflation pressure in
the indicated tire.
All wheels are yellow A flat tire or major drop in inflation pressure in
several tires.
Wheels, gray
The system cannot detect a flat tire due to a
malfunction.
Status information The status control display additionally shows
the current tire inflation pressures. It shows the
actual values read; they may vary depending
on driving style or weather conditions.
Carry out reset
Reset the system after each adjustment of the
tire inflation pressure and after every tire or
wheel change.
On the Control Display and on the vehicle:1. "Vehicle info"2."Vehicle status"3. "Perform reset"4.Start the engine - do not drive off.5.Reset the tire inflation pressure using
"Perform reset".6.Drive away.
The tires are shown in gray and the status is
displayed.
After driving faster than 19 mph/30 km/h for a
short period, the set tire inflation pressures are
accepted as reference values. The resetting
process is completed automatically while driv‐
ing. After successful completion of the reset,
the tires appear in green on the Control Display
and "Tire Pressure Monitor (TPM) active" is dis‐ played.
The progress of the reset is displayed.
You may interrupt this trip at any time. When
you continue the reset resumes automatically.
Low tire pressure message The yellow warning lamp lights up. A
Check Control message is displayed.
▷There is a flat tire or a major loss in
tire inflation pressure.▷A reset of the system was not carried out
after a wheel was changed. The system
therefore issues a warning based on the tire
pressures before the last reset.1.Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu‐
vers.2.Check whether the vehicle is fitted with
normal tires or run-flat tires.
Run-flat tires, refer to page 190, are la‐
beled with a circular symbol containing the
letters RSC marked on the tire's sidewall.Seite 104CONTROLSSafety104
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Final tire failure
Vibrations or loud noises while driving can indi‐
cate the final failure of a tire.
Reduce speed and stop; otherwise, pieces of
the tire could come loose and cause an acci‐
dent.
Do not continue driving. Contact a dealer’s
service center or another qualified service cen‐
ter or repair shop.
Required inflation pressure check
message
A Check Control message is displayed in the fol‐
lowing situations▷The system has detected a wheel change,
but no reset was done.▷Inflation was not carried out according to
specifications.▷The tire inflation pressure has fallen below
the level of the last confirmation.
In this case:
▷Check the tire pressure and correct as
needed.▷Carry out a reset of the system after a tire
change.
System limits
The system does not function properly if a reset
has not been carried out, e.g., a flat tire is re‐
ported though tire inflation pressures are cor‐
rect.
The tire inflation pressure depends on the tire's
temperature. Driving or exposure to the sun
will increase the tire's temperature, thus in‐
creasing the tire inflation pressure. The tire in‐
flation pressure is reduced when the tire tem‐ perature falls again. These circumstances may
cause a warning when temperatures fall very
sharply.
The system cannot indicate sudden serious tire
damage caused by external circumstances.
Malfunction
The yellow warning lamp flashes and
then lights up continuously. A Check
Control message is displayed. No flat
tire or loss of tire pressure can be detected.
Examples and recommendations in the follow‐
ing situations:▷A wheel without TPM electronics, for exam‐
ple an emergency wheel, is mounted: Have
it checked by a dealer’s service center or
another qualified service center or repair
shop as needed.▷Malfunction: Have system checked by a
dealer’s service center or another qualified
service center or repair shop.▷TPM was unable to complete the reset. Re‐
set the system again.▷Interference through systems or devices
with the same radio frequency: After leav‐
ing the area of the interference, the system
automatically becomes active again.
Declaration according to NHTSA/FMVSS
138 Tire Pressure Monitoring System
Each tire, including the spare (if provided)
should be checked monthly when cold and in‐
flated to the inflation pressure recommended
by the vehicle manufacturer on the vehicle
placard or tire inflation pressure label. (If your
vehicle has tires of a different size than the size
indicated on the vehicle placard or tire inflation
pressure label, you should determine the
proper tire inflation pressure for those tires.) As
an added safety feature, your vehicle has been
equipped with a tire pressure monitoring sys‐
tem (TPMS) that illuminates a low tire pressure
telltale when one or more of your tires is signifi‐
cantly under-inflated. Accordingly, when the
low tire pressure telltale illuminates, you should
stop and check your tires as soon as possible,
and inflate them to the proper pressure. Driving
on a significantly under-inflated tire causes the
tire to overheat and can lead to tire failure. Un‐
der-inflation also reduces fuel efficiency and
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