
cialist workshop immediately, e.g. a
Mercedes-Benz Service Centre.
X
Remove the following types of dirt immedi-
ately, whilst avoiding rubbing too hard.
Soak:
R
insect remains with insect remover
R bird droppings with water
and rinse off the treated surface after-
wards.
Remove:
R tree resin, oils, fuels and greases by rub-
bing gently with a cloth soaked in petro-
leum ether or lighter fluid.
R tar stains with tar remover
R wax with silicone remover
! Do not affix:
R stickers
R films
R magnetic plates or similar items
to painted surfaces. Otherwise, you could
damage the paintwork.
Cleaning the windows X
Clean the inside and outside of the win-
dows with a damp cloth and a cleaning
product approved and recommended by
Mercedes-Benz.
! Clean the water drainage channels of the
windscreen and the rear window at regular
intervals. Under certain circumstances,
deposits such as leaves, petals and pollen
may prevent water from draining away
leading to corrosion damage.
Cleaning the wiper blades G
Risk of injury
Before cleaning the windscreen or wiper
blades, turn the key to position 0in the igni-
tion lock or press the Start/Stop button* until all indicator lamps have gone out in the instru-
ment cluster. The windscreen wipers could
otherwise move and cause injury.
! Only fold the windscreen wipers away
from the windscreen when vertical. Other-
wise, you will damage the bonnet.
! Do not clean the wiper blades too often,
as this will result in damage to the graphite
coating. This could cause wiper noise.
X Fold the wiper arms away from the wind-
screen.
X Clean the wiper blades carefully with a
damp cloth.
X Fold the wiper arms back again before
switching on the ignition.
Cleaning the headlamps X
Clean the plastic lenses of the headlamps
with a wet sponge and windscreen washer
fluid or cleaning cloths.
! Only use washer fluid or cleaning cloths
suitable for plastic lenses. Unsuitable
washer fluid or cleaning cloths could
scratch or damage the plastic lenses of the
headlamps. Care
309Operation
* optional
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Display messages
Possible causes/consequences and
X
X Solutions Intell.
Light Sys‐
tem inopera‐
tive Tourist mode is active. The headlamps are set to symmetrical
dipped beam (
Ypage 225).
X If you drive in countries in which traffic drives on the oppo-
site side of the road to the country where the vehicle is
registered: the headlamps are set to symmetrical dipped
beam, in order not to dazzle oncoming traffic.
X If you drive in countries in which traffic drives on the same
side of the road as the country where the vehicle is regis-
tered: visit a qualified specialist workshop. Child seat in wrong
position
See Own‐
er's Man‐
ual
G
Risk of injury
Vehicles with automatic child seat recognition *on the front-
passenger seat: the child seat is incorrectly positioned.
X Fit the child seat in the correct position. G
Risk of injury
The sensor for the automatic child seat recognition on the
front-passenger seat* is faulty.
X Visit a qualified specialist workshop. Park
Assist deactiva‐
ted
autom.
See Own‐
er's Man‐
ual
Vehicles with a navigation system*: the vehicle is close to a
radio-telescope facility and, therefore, must not transmit any
radar signals. Park Assist* has switched itself off automati-
cally.
X
Drive on.
Park Assist *is available again as soon as the vehicle is far
enough away from the radio-astronomical installation
(Y page 411). Display messages
323Practical advice
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Display messages
Possible causes/consequences and
X
X Solutions The poly-V-belt may have torn.
X
Stop immediately and safely when traffic conditions permit
and check the poly-V-belt.
If the poly-V-belt is torn:
X Do not drive on. Consult a qualified specialist workshop.
If the poly-V-belt is intact:
X Wait until the display message disappears before restarting
the engine. Otherwise, there is a risk of engine damage.
X Observe the coolant temperature gauge.
X Have the vehicle checked at a qualified specialist work-
shop. b Third
brake lamp The third brake lamp is faulty. The display message will only
appear if all LEDs have failed.
X
Visit a qualified specialist workshop. b Left-hand
cornering
light
or
Right-
hand cor‐
nering
light The left-hand or right-hand cornering lamp is faulty.
X
Change the bulb (Y page 369). b Left-hand
dipped
beam
or
Right-
hand
dipped
beam The left-hand or right-hand dipped-beam headlamp is faulty.
X
Visit a qualified specialist workshop. b Active
Light
Function
inopera‐
tive
The active light function* is faulty.
X
Visit a qualified specialist workshop. Display
messages
343Practical advice
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Display messages
Possible causes/consequences and
X
X Solutions b AUTO
lights
inopera‐
tive The light sensor is faulty. Daytime driving lights are switched
on.
X
Switch off the daytime driving lights in the on-board com-
puter (Y page 225).
X Switch the lighting on or off using the light switch.
X Visit a qualified specialist workshop. b Rear left-
hand turn
signal
or
Rear
right-
hand turn
signal The rear left-hand or right-hand turn signal is faulty.
X
Visit a qualified specialist workshop. b Turn sig‐
nal in
left-hand
exterior
mirror
or
Turn sig‐
nal in
right-
hand exte‐
rior mir‐
ror The left-hand or right-hand turn signal on the exterior mirror
is faulty. The display message will only appear if all LEDs have
failed.
X
Visit a qualified specialist workshop. b Front
left-hand
turn sig‐
nal
or
Front
right-
hand turn
signal The front left-hand or right-hand turn signal is faulty.
X
Visit a qualified specialist workshop. b Left-hand
main beam
or
Right-
hand main
beam The left-hand or right-hand main beam headlamp is faulty.
X
Change the bulb (Y page 369).344
Display
messagesPractical advice
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PARKTRONIC
Problem
Possible causes/consequences and
X XSolutions Only the red segments
in the PARKTRONIC
warning display are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds and
the indicator lamp in
the PARKTRONIC but-
ton lights up. PARKTRONIC has malfunctioned and has switched itself off.
X
If problems persist, have PARKTRONIC checked at a qualified
specialist workshop. Only the red segments
in the PARKTRONIC
warning display are lit.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds. The PARKTRONIC sensors are dirty or there is interference.
X
Clean the PARKTRONIC sensors (Y page 310).
X Switch the ignition back on. Only the red segments
in the PARKTRONIC
warning display are lit.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds. The problem may be caused by an external source of radio or
ultrasound waves.
X
See if PARKTRONIC functions in a different location. Headlamps
Problem
Possible causes/consequences and
X XSolutions The headlamps are mis-
ted up on the inside. Air humidity is very high.
X
Drive with the headlamps switched on.
The headlamps are demisted after a short distance. The headlamp housing is not sealed and moisture has been able
to enter.
X
Have the headlamps checked at a qualified specialist workshop. 360
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that these function correctly at all times.
Have the headlamp settings checked regu-
larly. Only use the types of bulbs specified
here. If the new bulb still does not light up,
consult a qualified specialist workshop.
Do not touch the glass tube of new bulbs with
your bare hands. Even minor contamination
can burn into the glass surface and reduce
the service life of the bulbs. Always use a lint-
free cloth or only touch the base of the bulb
when fitting. G
Risk of injury
Bulbs and lamps can be very hot. You should
therefore allow them to cool down before you
change them. Otherwise, you could be burned
if you touch them.
Keep bulbs out of the reach of children. Oth-
erwise, they could damage them, for example,
and injure themselves.
Never use a bulb which has been dropped.
Such a bulb may explode and injure you. Halogen bulbs are pressurised and could
explode when you change them, particularly
if they are very hot. You should therefore wear
eye protection and gloves when you are
changing them.
G
Risk of injury
Xenon bulbs carry a high voltage. You could
get an electric shock and be seriously or even
fatally injured if you touch the electric con-
tacts on xenon bulbs. Therefore, never
remove the cover from xenon bulbs.
Do not change xenon bulbs yourself but have
them replaced at a qualified specialist work-
shop which has the necessary specialist
knowledge and tools to carry out the work
required.
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centre for this pur-
pose. In particular, work relevant to safety or
on safety-related systems must be carried out
at a qualified specialist workshop. Overview: changing bulbs/bulb types
You can replace the following bulbs: Bi-xenon headlamps Bulb type
:
Main-beam spot lamp/motorway spot
lamp: H7 55 W
; Cornering light: H7 55 W
= Infrared light* (Night View Assist*):
H11 55 W 370
Changing bulbsPractical advice
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Changing bulbs
Main-beam headlamp/motorway spot
lamp X
Switch off the lights.
X Open the bonnet.
X Pull housing cover :by retaining lug ;in
the direction of the arrow and remove it.
X Left-hand headlamp: pull fitting aid =
upwards and remove bulb ?from the
headlamp with the fitting aid =.
X Right-hand headlamp: pull fitting aid =
down and remove bulb ?from the head-
lamp with fitting aid =.
X Remove bulb ?from the bulb holder.
X Insert the new bulb so that it fits flush.
X Left-hand headlamp: insert fitting aid =
into the headlamp.
The handle of fitting aid =must be point-
ing upwards. X
Right-hand headlamp: insert fitting aid =
into the headlamp.
The handle of fitting aid =must be point-
ing downwards.
X Left-hand headlamp: pull fitting aid =
down until it engages.
X Right-hand headlamp: pull fitting aid =up
until it engages.
X Replace housing cover :and tighten it
until it engages audibly.
Infrared light* (Night View Assist*) X
Switch off the lights.
X Open the bonnet.
X Pull housing cover :by retaining lug ;in
the direction of the arrow and remove it.
X Turn bulb holder =anti-clockwise and
remove it.
X Push the two detents on the right and left
of bulb holder =and remove the bulb from
bulb holder =.
X Insert the new bulb into bulb holder =.
X Insert bulb holder =into the guide in the
headlamp.
Cable outlet ?must be pointing down and
to the right.
X Turn bulb holder =clockwise.
Cable outlet ?must be pointing down and
to the left.
X Replace housing cover :and tighten it
until it engages audibly. Changing bulbs
371Practical advice
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Cornering light
X
Switch off the lights.
X Open the bonnet.
X Pull housing cover :by retaining lug ;in
the direction of the arrow and remove it.
X Turn bulb holder ?anti-clockwise and
remove it.
X Remove the bulb from bulb holder ?.
X Insert the new bulb into bulb holder ?and
push it down as far as it will go.
X Insert bulb holder ?into the guide in the
headlamp.
Left-hand headlamp: cable outlet =of
bulb holder ?must be pointing down and
to the left.
Right-hand headlamp: cable outlet =of
bulb holder ?must be pointing up and to
the right.
X Turn bulb holder ?clockwise.
X Replace housing cover :and tighten it
until it engages audibly. Replacing the wiper blades
G
Risk of accident
The windscreen will no longer be wiped prop-
erly if the wiper blades are worn. This could
prevent you from observing the traffic condi-
tions, thereby causing an accident. Replace
the wiper blades twice a year, ideally in spring
and autumn. G
Risk of accident
The wiper arms could start moving and cause
an injury if you leave the windscreen wipers
switched on.
Remove the key from the ignition lock before
replacing the wiper blades.
! To avoid damaging the windscreen wiper
blades, make sure that you touch only the
wiper arm of the windscreen wiper. Removing
Moving the wiper blades to a vertical
position Vehicles without KEYLESS GO*
X
Turn the key to position 1or 2in the ignition
lock.
X Set the windscreen wipers to posi-
tion ° on the combination switch.
X When the wiper arms have reached a ver-
tical position, turn the key to position 0and
remove it from the ignition lock.
X Fold the wiper arm away from the wind-
screen until it engages.
X Set the wiper blade at right angles to the
wiper arm.
Vehicles with KEYLESS GO*
X Switch off the engine.
X Take your foot off the brake pedal.
X Set the windscreen wipers to posi-
tion ° on the combination switch.
X Press the Start/Stop button repeatedly
until the windscreen wipers start.
X When the wiper arms have reached a ver-
tical position: press the Start/Stop button.
X Fold the wiper arm away from the wind-
screen until it engages.
X Set the wiper blade at right angles to the
wiper arm. 372
Replacing the wiper bladesPractical advice
* optional
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