For this reason, check the condition and func-
tion of your vehicle's lighting system and, if
necessary, that of the trailer before each jour-
ney.
The bulb failure indicator monitors all of the
exterior lighting lamps, except the perimeter
lamp and the trailer lighting. If a bulb fails,
either the 0049(Ypage 35) indicator lamp
lights up, or you will see a corresponding
message in the display (Y page 210).
i Depending on the equipment, the bulb
failure indicator can fail for all lamps with
the exception of the turn signal lamps. Light switch
Operation 00470058
Automatic headlamp mode
0048003F Lights off/daytime running lamp
mode
00490060 Parking lamps, license plate and
instrument lighting
004A0058 Low-beam/high-beam headlamps
004B005A Fog lamps
004C005E Rear fog lamp
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
X Turn the light switch to 003For0058.
Or
X If the rear fog lamp is switched on: press
the light switch in to the stop. The turn signals, high-beam headlamps and
the high-beam flasher are operated using the
combination switch (Y
page 95).
Low-beam headlamps X
To switch on: turn the key to position 2in
the ignition lock or start the engine.
X Turn the light switch to position 0058.
The 0058 indicator lamp in the instrument
cluster lights up.
X To switch off: turn the light switch to
003F.
Daytime running lamps You can activate/deactivate the daytime run-
ning lamps function using the on-board com-
puter.
This is not possible in countries where day-
time running lamps are a legal requirement.
The daytime running lamps function must be
activated using the on-board computer:
R
vehicles with steering wheel buttons
(Y page 194)
R vehicles without steering wheel buttons
(Y page 185)
X To switch on: turn the light switch to the
003F position.
The low-beam headlamps, parking lamps
and license plate lamp are switched on
when the engine is running. The 0058indi-
cator lamp in the instrument cluster lights
up.
i USA only:
If you turn the light switch to the 0060or
0058 position, the parking lamps or low-
beam headlamps switch on. If you turn the
light switch to the 0058position, the day-
time running lamps remain switched on.
i Canada only:
If you turn the light switch to the 0058posi-
tion, the low-beam headlamps are switched
on. If you turn the light switch to the 0060 Exterior lighting
93Lights and windshield wipers Z
or
0058 position, the daytime running
lamps remain switched on.
Automatic headlamp mode G
WARNING
When the light switch is set to 0058, the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
0058.
Automatic headlamp mode is only a driving
aid. You are responsible for the vehicle light-
ing at all times.
Depending on ambient light, the rain and light
sensor automatically switches on the parking
lamps, low-beam headlamps and the license
plate lamp. This excludes weather-related
impairments to visibility, such as snow, fog or
spray.
If there is fog, snow or spray, turn the light
switch quickly from 0058to0058. You could
otherwise briefly interrupt operation of the
headlamps.
X To switch on automatic headlamp
mode: turn the light switch to 0058.
SmartKey in position 1in the ignition lock:
the parking lamps switch on or off auto-
matically depending on the ambient light.
When the engine is running: if you activate
the "daytime running lamps" function using
the on-board computer, the daytime run-
ning lamps are switched on. The parking
lamps and low-beam headlamps also
switch on or off automatically, depending
on the ambient light.
When the low-beam headlamps are
switched on, the 0058indicator lamp in the
instrument cluster lights up. Fog lamp/rear fog lamp G
WARNING
If you suspect that driving conditions will be
foggy, turn the light switch to 0058before you
start your journey. Your vehicle may other-
wise not be visible and you could endanger
yourself and others. G
WARNING
In low ambient lighting or foggy conditions,
only switch from position 0058to0058 with
the vehicle at a standstill in a safe location.
Switching from 0058to0058 will briefly
switch off the headlamps. Doing so while driv-
ing in low ambient lighting conditions may
result in an accident.
X Turn the ignition key to position 2in the
ignition lock or start the engine.
X Turn the light switch to 0058or0060.
i If your vehicle is only equipped with one
rear fog lamp, you must turn the light
switch to 0058.
i When the light switch is set to 0058, you
cannot switch on the front or rear fog
lamps.
X To switch on the front fog lamps: pull the
light switch out to the first locking point.
The green 005Aindicator lamp on the light
switch lights up.
X To switch on the rear fog lamp: pull the
light switch out to the second locking point.
The yellow 005Eindicator lamp on the light
switch lights up.
X To switch off the front fog lamps/rear
fog lamp: push in the light switch to the
stop.
The 005E and005A indicator lamp on the
light switch go out. 94
Exterior lightingLights and windshield wipers
Combination switch
Turn signal lamps 0043
To indicate a right turn
0044 To indicate a left turn
X To indicate: press the combination switch
in desired direction 0043or0044 until it
engages.
The combination switch automatically
returns to its original position after large
steering movements.
X To indicate briefly: press the combination
switch briefly in desired direction 0043
or 0044.
The corresponding turn signal flashes three
times.
High-beam headlamps and high-beam
flasher 0043
High-beam headlamps
0044 High-beam flasher X
To switch on the high-beam head-
lamps: switch on the low-beam headlamps
(Y page 93).
X Press combination switch 0043forwards.
The 0057 indicator lamp in the instrument
cluster lights up.
i In the 0058position, the high-beam head-
lamps are only switched on when it is dark
and the engine is running.
X To switch off the high-beam head-
lamps: move the combination switch back
to its normal position.
The 0057 indicator lamp in the instrument
cluster goes out.
X To switch on the high-beam flasher: turn
the SmartKey to position 1or 2in the igni-
tion lock.
X Pull the combination switch briefly in direc-
tion of arrow 0044. Headlamp range adjustment
The headlamp range control is used to adapt
the downward angle of the headlamp beams
in accordance with the load on your vehicle.
The cone of light from the headlamps changes
if seats are occupied or if the cargo compart-
ment is being loaded or unloaded. This can
impair visibility and cause glare to oncoming
traffic.
You can only adjust the headlamp range while
the engine is running. Exterior lighting
95Lights and windshield wipers Z
X
Turn headlamp range control 0043to the cor-
responding position. The road ahead
should be lit up for 40 mto 100 mand the
low-beam headlamps should not cause
glare to oncoming traffic.
Select position 005Aif the vehicle is unladen. Cornering light function (vehicles
with Bi-Xenon headlamps)
The cornering lamps improve the illumination
of the road over a wide angle in the direction
you are turning, enabling better visibility in
tight bends, for example.
The cornering light function switches on
automatically, if:
R you are traveling at a speed of less than
25 mph (40 km/h) and you switch on a turn
signal or turn the steering wheel.
R you are traveling at a speeds of between
25 mph (40 km/h) and 43 mph (70 km/h)
and turn the steering wheel.
The cornering lamp may remain lit for a short
time, but is automatically switched off after
no more than 3 minute s.
i If reverse gear is engaged the lamp on the
opposite side of the vehicle switches on
instead. Hazard warning lamps
G
WARNING
The rear exterior light will be covered if you:
R open the rear doors by 90°
R open the rear dropside.
The vehicle will then be difficult for other road
users to see or will not be seen by them at all,
particularly if it is dark or visibility is poor.
There is a risk of an accident.
You should therefore ensure in this and simi-
lar situations that the vehicle is visible from
the rear in accordance with the relevant national regulations, by using the warning tri-
angle, for instance. Hazard warning lamp switch
X
To switch on/off: press the002Fhazard
warning lamp switch.
If you have indicated a turn while the hazard
warning lamps are switched on, only the turn
signal lamps on the side of the vehicle
selected will light up.
The hazard warning lamps switch on auto-
matically if:
R an air bag is deployed.
R you brake sharply and bring the vehicle to
a halt from a speed of more than 45 mph
(70 km/h).
If the hazard warning lamps have been
switched on automatically, press the 002F
hazard warning lamp switch to switch them
off.
i The hazard warning lamps work even
when the ignition is switched off. Headlamp cleaning system
The headlamps are cleaned automatically
with a high-pressure water jet if the "Wipe
with washer fluid" function is activated
(Y page 107) while the low-beam headlamps
are on and the engine is running.
Information on checking the washer fluid
level can be found in the "Maintenance and
care" (Y page 257) section. 96
Exterior lightingLights and windshield wipers
Active light function
The active light function is a system that
moves the headlamps according to the steer-
ing movements of the front wheels. In this
way, relevant areas will be illuminated to a
greater extent while driving. This allows you
to recognize pedestrians, cyclists and ani-
mals.
Active: when the lights are switched on. Highbeam Assist
General notes You can use this function to set the head-
lamps to change between high beam and low
beam automatically. The system recognizes
vehicles with their lights on, either approach-
ing from the opposite direction or traveling in
front of your vehicle, and consequently
switches the headlamps from high beam to
low beam.
Once the system no longer detects any other
vehicles, it reactivates the high-beam head-
lamps.
The system's optical sensor is located behind
the windshield near the overhead control
panel.
Important safety notes G
WARNING
Highbeam Assist does not recognize road
users:
R who have no lights, e.g. pedestrians
R who have poor lighting, e.g. cyclists
R whose lighting is blocked, e.g. by a barrier
In very rare cases, Highbeam Assist may fail
to recognize other road users who have lights,
or may recognize them too late. In this or sim-
ilar situations, the automatic high-beam head-
lamps will not be deactivated or will be acti-
vated regardless. There is a risk of an acci-
dent. Always carefully observe the traffic conditions
and switch off the high-beam headlamps in
good time.
Highbeam Assist cannot take into account
road, weather or traffic conditions. Highbeam
Assist is only an aid. You are responsible for
adjusting the vehicle's lighting to the prevail-
ing light, visibility and traffic conditions.
In particular, the detection of obstacles can
be restricted if there is:
R poor visibility, e.g. due to fog, heavy rain or
snow
R dirt on the sensors or anything else cover-
ing the sensors
Activating/deactivating Highbeam
Assist X
To activate: switch on the Highbeam
Assist function using the on-board com-
puter (Y page 194).
X Turn the light switch to the 0058position.
X Press the combination switch beyond the
pressure point in the direction of arrow 0043
(Y page 95).
Highbeam Assist is active.
The or
00CE indicator lamp in the
multifunction display lights up when it is
dark and the light sensor activates the low-
beam headlamps.
If you are driving at speeds above approx-
imately 22 mph (35 km/h) and no other
road users have been detected:
The high-beam headlamps are switched on
automatically. The 0057indicator lamp in
the instrument cluster also lights up.
If you are driving at speeds below approx-
imately 19 mph (30 km/h) other road users
are recognized or the roads are adequately
lit:
The high-beam headlamps are switched off
automatically. The 0057indicator lamp in
the instrument cluster goes out. The 00CE Exterior lighting
97Lights and windshield wipers Z
0044
Connector for low-beam headlamps
0087 Connector for high-beam headlamps
0085 Connector for navigation lights (halogen
headlamps)
X Remove corresponding connector 0044,0087
or 0085 from the bulb.
X Detach the locking spring and remove the
bulb.
X Insert the new bulb in such a way that its
base fits into the recess of the bulb holder.
X Attach the locking spring and plug the con-
nector onto the bulb.
X Place housing cover 0043into the opening
and turn in the opposite direction of the
arrow.
X Close the hood.
Cornering light function/daytime run-
ning lamps X
Switch off the lighting system.
X Open the hood (Y page 250).
X Turn housing cover 0043counter-clockwise
and remove it. X
Pull out the bulb holder together with
bulb 0044.
X Pull the bulb out of the bulb holder.
X Press a new bulb into the bulb holder.
X Insert the bulb holder into the lamp.
X Position housing cover 0043and turn it clock-
wise as far as it will go.
X Close the hood.
Turn signal lamps X
Switch off the lighting system.
X Open the hood (Y page 250).
X Turn bulb holder 0043counter-clockwise and
remove it.
X Applying light pressure to the bulb, turn it
counter-clockwise and remove it from bulb
holder 0043.
X Press the new bulb into bulb holder 0043and
screw it in clockwise.
X Insert bulb holder 0043into the lamp and turn
it clockwise to tighten.
X Close the hood. 102
Changing bulbsLights and windshield wipers
The detent positions of the combination
switch correspond to the following wiper
speeds:
0W indshield wipers off
II ntermittent wipe
II Normal wipe
III Rapid wipe
i Canada only:
If the windshield wipers are switched on
and you stop the vehicle, the windshield
wiper speed is reduced. For example, if you
have selected level IIand stop the vehicle,
wiping continues with intermittent wipe
while the vehicle is stationary. If intermit-
tent wipe is selected, the intervals become
longer.
Vehicles with a rain and light sensor:
you can use level Ias the universal setting.
The rain and light sensor sets the appropri-
ate wiping frequency automatically,
according to the intensity of the rain. When
you stop the vehicle, levels IIIand IIare
switched down to level Iautomatically.
The windshield wiper will return to the orig-
inal level when you drive faster than
5 mph (8 km/h).
You can adjust the sensitivity of the rain and
light sensor using the on-board computer
(Y page 196).
Information on checking the washer fluid
level can be found in the "Maintenance and
care" (Y page 257) section. Switching the rear window wiper on/
off Combination switch
0043
00C5 Rear window wiper switch
0048 00E2 To wipe with washer fluid
0049 ITo switch on intermittent wiping
004A 0To switch off intermittent wiping
004B 00E2 To wipe with washer fluid
X Turn the key to position 1or 2in the ignition
lock.
X Turn switch 0043to the corresponding posi-
tion
The rear window wiper switches on automat-
ically if you engage reverse gear and the wind-
shield wipers are on. Replacing the wiper blades
G
WARNING
If the windshield wipers begin to move while
you are changing the wiper blades, you could
be trapped by the wiper arm. There is a risk
of injury.
Always switch off the windshield wipers and
ignition before changing the wiper blades.
! Never open the hood if a windshield wiper
arm has been folded away from the wind-
shield.
Never fold a windshield wiper arm without
a wiper blade back onto the windshield/
rear window. 108
Windshield wipersLights and
windshield wipers
007C
Directs air to the windshield, the air
vents and into the footwell
007D Directs air to the air vents and into
the footwell
Adjusting X
Switch on climate control (Y page 116).
X Set air-distribution control 0085for the heat-
ing (Y page 113) or air-conditioning system
0083 (Ypage 114) to the corresponding sym-
bol. Setting the airflow
X Switch on climate control (Y page 116).
X Vehicle with heating/rear-compart-
ment heating: set airflow control 0044of the
heating (Y page 113) or of the rear-com-
partment heating ( Ypage 115) to the
desired level.
X Vehicle with air conditioning/rear-com-
partment air conditioning: press the
0095 button to reduce or the 0097button
to increase the airflow.
The blower speeds are shown in bars next
to the buttons. Defrosting the windows
You can use the "defrosting" function to
defrost the windshield or to demist the inside
of the windshield and the side windows.
Only use the following settings until the win-
dows are clear again.
X Vehicle with window heating: switch on
the front (Y page 119) and/or rear window
defroster (Y page 120) .
X Switch on climate control (Y page 116).Vehicle with heating
X
Set temperature control 0043and airflow
control 0044to0085 (Ypage 113).
X Set air-distribution control 0085to007E
0085 (Ypage 113).
X Close the center air vents (Y page 121) and
the air outlets for the headroom and the
rear compartment ( Ypage 121).
X Direct the side air vents towards the side
windows and open the defroster vents for
the side windows (Y page 121).
Vehicle with air conditioning
X Set temperature control 0043to
0085 (Ypage 114).
X Press the 0097button until the maximum
blower output is reached.
All bars in the display next to the button
light up.
X Set air-distribution control 0083to007E
0085 (Ypage 114).
X Close the center air vents (Y page 121) and
the air outlets for the headroom and the
rear compartment ( Ypage 121).
X Direct the side air vents towards the side
windows and open the defroster vents for
the side windows (Y page 121). Clearing condensation from the win-
dows
Windows fogged up on the inside You should only select this setting until the
windows are clear again.
X
Vehicle with window heating: switch on
the front (Y page 119) and/or rear window
defroster (Y page 120) .
X Switch on climate control (Y page 116).
X Switch off air-recirculation mode
(Y page 120). 118
Operating the climate control systemClimate control