The bulb may explode if:
R you touch it
R it is hot
R you drop it
R you scratch it
Only operate bulbs in enclosed lamps
designed for that purpose. Only fit spare
bulbs of the same type and the specified volt-
age.
Marks on the glass tube reduce the service
life of the bulbs. Do not touch the glass tube
with your bare hands. If necessary, clean the
glass tube when cold with alcohol or spirit and
rub it off with a lint-free cloth.
Protect bulbs from moisture during opera-
tion. Do not allow bulbs to come into contact
with liquids.
There are bulbs other than the xenon bulbs
that you cannot replace yourself. Replace
only the bulbs listed ( Y page 115). Have the
bulbs that you cannot replace yourself
replaced at a qualified specialist workshop.
If you require assistance replacing bulbs, con-
sult a qualified specialist workshop.
If the new bulb still does not light up, consult
a qualified specialist workshop.
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times.
Have the headlamp setting checked regularly.
Overview of bulb replacement – bulbs
You can replace the following bulbs. The
details for the bulb type can be found in the
legend.
Halogen headlamps
:Turn signal lamp: PY 21 W;Main-beam headlamp/daytime driving
lights/side lamp/parking lamp:
H15 55 W/15 W=Dipped-beam headlamp: H7 55 W
Vehicles with Intelligent Light System
:Cornering lamp: H7 55 W
Tail lamp (halogen headlamps)
:Rear foglamp: P 21 W;Brake lamp: W 16 W=Brake lamp: W 16 WReplacing bulbs115Lights and windscreen wipersZProCarManuals.com
?Turn signal lamp: PY 21 WAReversing lamp: W 16 W
Replacing the front bulbs
Fitting/removing the cover on the front
wheel arch
You must remove the cover from the front
wheel housing before you can change the
front bulbs.
XTo remove: switch off the lights.XTurn the front wheels inwards.XTurn rotary knob : through 90°.
Cover ; is released.XPush cover ; down.XTo fit: push cover ; up.XTurn rotary knob : through 90°.
Cover ; is locked.
Dipped-beam headlamps (halogen
headlamps)
XRemove the cover in the front wheel arch
( Y page 116).XTurn housing cover : anti-clockwise and
pull it out.XTurn bulb holder ; anti-clockwise and pull
it out.XTake the bulb out of bulb holder ;.XInsert the new bulb into bulb holder ;.XInsert bulb holder ; into the lamp and turn
it clockwise.XAlign housing cover : and turn it clock-
wise until it engages.XReplace the cover in the front wheel arch
( Y page 116).
Main-beam headlamps/daytime driving
lights/side lamps and parking lamps
(vehicles with halogen headlamps)
XSwitch off the lights.XOpen the bonnet.XTurn housing cover : anti-clockwise and
pull it out.XTurn bulb ; anti-clockwise and pull it out.XInsert the new bulb and engage it to the
stop.XAlign housing cover : and turn it clock-
wise until it engages.116Replacing bulbsLights and windscreen wipers
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Turn signal lamp (halogen headlamps)XSwitch off the lights.XOpen the bonnet.XTurn bulb holder : anti-clockwise and pull
it out.XTake the bulb out of bulb holder :.XInsert the new bulb into bulb holder :.XInsert bulb holder : and turn it clockwise
until it engages.
Cornering lamps (Intelligent Light Sys-
tem)
XSwitch off the lights.XOpen the bonnet.XTurn housing cover : anti-clockwise and
pull it out.XTurn bulb holder ; anti-clockwise and pull
it out.XTake the bulb out of bulb holder ;.XInsert the new bulb into bulb holder ;.XInsert bulb holder ; into the lamp and turn
it clockwise.XAlign housing cover : and turn it clock-
wise until it engages.
Replacing the rear bulbs
Opening and closing the side trim pan-
els
You must open the side trim panel in the boot
before you can replace the bulbs in the tail
lamps.
Left-hand side trim panel
XTo open: turn release knob : 90° in the
direction of the arrow and remove side trim
panel ;.XTo close: insert side trim panel ; and turn
release knob : 90° in the opposite direc-
tion to the arrow.
Right-hand side trim panel
Replacing bulbs117Lights and windscreen wipersZProCarManuals.com
XTo open: loosen side trim panel : at the
top and fold it down in the direction of the
arrow.XTo close: insert side panel :.
Tail lamps
XSwitch off the lights.XOpen the boot.XOpen the side trim panel ( Y page 117).XRelease and remove connector.XPress retaining clips : at the same time in
the direction of the arrows.XPull the bulb holder out with the bulbs.
Bulb holder
:Brake lamp;Brake lamp=Rear foglamp?Reversing lampATurn signalsXBrake lamp/rear foglamp/reversing
lamp: remove the corresponding bulb from
the bulb holder.XInsert the new bulb into the bulb holder.XTurn signal lamp: lightly press the bulb
into the bulb holder, turn it anti-clockwise
and remove it from the bulb holder.XInsert the new bulb into the bulb holder and
turn it clockwise.XReinsert the bulb holder and engage on
retaining clips :.XRe-establish contact with the connector.XClose the side trim panel ( Y page 117).
Windscreen wipers
Switching the windscreen wipers on/
off
! Do not operate the windscreen wipers
when the windscreen is dry, as this could
damage the wiper blades. Moreover, dust
that has collected on the windscreen can
scratch the glass if wiping takes place when
the windscreen is dry.
If it is necessary to switch on the wind-
screen wipers in dry weather conditions,
always operate them using washer fluid.
! If the windscreen wipers leave smears on
the windscreen after the vehicle has been
washed in an automatic car wash, this may
be due to wax or other residue. Clean the
windscreen with washer fluid after an auto-
matic car wash.
118Windscreen wipersLights and windscreen wipers
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Combination switch
1$ Windscreen wipers off2Ä Intermittent wipe, low (rain sensor
set to low sensitivity)3Å Intermittent wipe, high (rain sensor
set to high sensitivity)4° Continuous wipe, slow5¯ Continuous wipe, fastBí Single wipe/ î to wipe the wind-
screen using washer fluidXTurn the key to position 1 or 2 in the ignition
lock.XTurn the combination switch to the corre-
sponding position.
! Vehicles with a rain sensor: if the wind-
screen becomes dirty in dry weather con-
ditions, the windscreen wipers may be acti-
vated inadvertently. This could damage the
windscreen wiper blades or scratch the
windscreen.
For this reason, you should always switch
off the windscreen wipers in dry weather.
Vehicles with a rain sensor: in the Ä or
Å position, the appropriate wiping fre-
quency is automatically set according to the
intensity of the rain. In the Å position, the
rain sensor is more sensitive than in
the Ä position, causing the windscreen
wipers to wipe more frequently.
If the wiper blades are worn, the windscreen
will no longer be wiped properly. This could
prevent you from observing the traffic condi-
tions. Replace the wiper blades twice a year,
ideally in spring and autumn.
Replacing the wiper blades
Important safety notesGWARNING
If the windscreen wipers begin to move while
you are changing the wiper blades, you can be
trapped by the wiper arm. There is a risk of
injury.
Always switch off the windscreen wipers and
ignition before changing the wiper blades.
! To avoid damaging the windscreen wiper
blades, make sure that you touch only the
wiper arm of the windscreen wiper.
! Never open the bonnet if a windscreen
wiper arm has been folded away from the
windscreen.
Never fold a windscreen wiper arm without
a wiper blade back onto the windscreen.
Hold the windscreen wiper arm firmly when
you change the wiper blade. If you release
the windscreen wiper arm without a wiper
blade and it falls onto the windscreen, the
windscreen may be damaged by the force
of the impact.
Mercedes-Benz recommends that you have
the wiper blades changed at a qualified
specialist workshop.
Replacing the windscreen wiper blades
Removing the wiper blades
XRemove the key from the ignition lock.XFold the wiper arm away from the wind-
screen.Windscreen wipers119Lights and windscreen wipersZProCarManuals.com
XPress both release clips ;.XFold wiper blade : in the direction of
arrow = away from wiper arm ?.XRemove wiper blade : in the direction of
arrow A.
Fitting the wiper blades
XPosition new wiper blade : with
recess B on lug A.XFold wiper blade : in the direction of
arrow = onto the wiper arm, until retaining
clips ; engage in bracket ?.XMake sure that wiper blade : is seated
correctly.XFold the wiper arm back onto the wind-
screen.120Windscreen wipersLights and windscreen wipers
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Problems with the windscreen wipersProblemPossible causes/consequences and M SolutionsThe windscreen wipers
are jammed.Leaves or snow, for example, may be obstructing the windscreen
wiper movement. The wiper motor has been deactivated.XFor safety reasons, you should remove the key from the ignition
lock.XRemove the cause of the obstruction.XSwitch the windscreen wipers back on.The windscreen wipers
fail completely.The windscreen wiper drive is malfunctioning.XSelect another wiper speed on the combination switch.XHave the windscreen wipers checked at a qualified specialist
workshop.The windscreen washer
fluid from the spray
nozzles no longer hits
the centre of the wind-
screen.The spray nozzles are misaligned.XHave the spray nozzles adjusted at a qualified specialist work-
shop.Windscreen wipers121Lights and windscreen wipersZProCarManuals.com
erwise mist up as no fresh air is drawn into
the vehicle in air-recirculation mode.
R Use the ZONE function to adopt the tem-
perature settings on the driver's side for
the front-passenger side as well. The indi-
cator lamp in the á button goes out.
R Use the residual heat function if you want
to heat or ventilate the vehicle interior
when the ignition is switched off. The resid-
ual heat function can only be activated or
deactivated with the ignition switched off.
R Vehicles with COMAND Online: if you
change the settings of the climate control
system, the climate status display appears
for three seconds at the bottom of the
screen in the COMAND display. See also
the separate COMAND Online operating
instructions. You will see the current set-
tings of the various climate control func-
tions.
ECO start/stop function
During automatic engine switch-off, the cli-
mate control only operates at a reduced capa-
city. If you require the full climate control out-
put, you can switch off the ECO start/stop
function by pressing the ECO button
( Y page 149).
Operating the climate control system
Switching climate control on/off
Points to observe before use
When the climate control is switched off, the
air supply and air circulation are also
switched off. The windows could mist up.
Therefore, only switch off climate control
briefly.
THERMATIC automatic climate controlXTurn the key to position 2 in the ignition
lock ( Y page 145).XTo switch on: turn control A clockwise to
the desired position (except position 0)
( Y page 125).XTo switch off: turn control A anti-clock-
wise to position 0 (Y page 125).
THERMOTRONIC automatic climate
control
XTurn the key to position 2 in the ignition
lock ( Y page 145).X To switch on: press the à button.
The indicator lamp in the à button lights
up. Airflow and air distribution are set to
automatic mode.
or
XPress the ^ button.
The indicator lamp in the ^ button goes
out. The previous settings are reactivated.XTo deactivate: press the ^ button.
The indicator lamp in the ^ button lights
up.
i THERMOTRONIC automatic climate con-
trol: switch on climate control primarily
using the à button.
Activating/deactivating the cooling
with air dehumidification function
Points to observe before use
If you deactivate the "Cooling with air dehu-
midification function", the air inside the vehi-
cle will not be cooled in warmer weather. The
air inside the vehicle will not be dehumidified
either. The windows can mist up more
quickly. Therefore, only switch off the "Cool-
ing with air dehumidification function" briefly.
The "Cooling with air dehumidification" func-
tion is only available when the engine is run-
ning. The air inside the vehicle is cooled and
128Operating the climate control systemClimate control
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