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Removing the emergency key element
(vehicles without KEYLESS GO) X
Push release catch :in the direction of
the arrow and at the same time remove
emergency key element ;from the key. Unlocking the vehicle
If the vehicle can no longer be unlocked cen-
trally with the key or KEYLESS GO*:
X Remove the emergency key element from
the key (Y page 365). X
Insert the emergency key element into the
lock of the driver's door as far as it will go.
X Firmly turn the emergency key element
anti-clockwise as far as it will go to position
1 and hold it in this position.
i On right-hand-drive vehicles, turn the
emergency key element clockwise.
X Pull the door handle firmly.
The locking knob pops up. The door is unlocked.
X Turn the emergency key element back and
remove it.
X Pull the door handle again. Locking the vehicle
If the key is defective, you can lock the doors
and the boot by taking the following steps. If
the vehicle central locking is malfunctioning,
you cannot lock the boot.
If the vehicle can no longer be unlocked cen-
trally with the key or KEYLESS GO*:
X Close the driver's door.
X Open the front-passenger door.
X Press down the locking knob of the driver's
door from inside the vehicle.
X Press down the locking knob on the open
front-passenger door.
i Make sure that you have the vehicle key
on your person and that it is not left in the
vehicle.
X Close the front-passenger door.
X Check whether the doors and the boot are
locked. Boot
! The boot lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the boot lid.
If the boot can no longer be unlocked with the
key or KEYLESS GO*:
X Remove the emergency key element from
the key (Y page 365). 366
Locking/unlocking in an emergencyPractical advice
* optional
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Page 370 of 421

X
Insert the emergency key element fully into
tailgate lock :.
X Turn the emergency key element anti-
clockwise as far as possible.
The boot is unlocked.
X Turn the emergency key element back and
remove it. Replacing batteries (key, remote con-
trol, etc.) Notes
It is advisable to have the batteries replaced
at a qualified specialist workshop, e.g. at a
Mercedes-Benz Service Centre. G
Risk of poisoning
Batteries contain toxic and caustic substan-
ces. For this reason, keep batteries away from
children.
If a battery is swallowed, consult a doctor
immediately. H
Environmental note
Do not dispose of batteries with the house-
hold rubbish. They contain highly toxic sub-
stances.
Take discharged batteries to a qualified spe-
cialist workshop, e.g. a Mercedes-Benz
Service Centre, or to a special collection point
for old batteries. Key
Checking the batteries X
Press the &or% button.
The batteries are in order if the battery
charge indicator lamp lights up briefly.
Changing batteries (key with KEYLESS
GO*) You require two CR 2025 3 V cell batteries.
X
Remove the emergency key element from
the key (Y page 365). X
Insert emergency key element :into the
opening in the key and push in the direction
of the arrow.
Battery tray ;is released.
X Pull battery tray ;out of the key. X
Remove old batteries :from the battery
tray.
X Insert the new batteries beneath the con-
tact spring with the positive pole facing
upwards. Use a lint-free cloth to do so. Replacing batteries (key, remote control, etc.)
367Practical advice
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Page 371 of 421

X
Push the battery tray back into the key
housing until the battery tray engages.
X Check the function of all key buttons on the
vehicle.
Changing a battery (key without KEY-
LESS GO*) You require a CR 2025 3 V cell battery.
X Remove the emergency key element from
the key (Y page 365). X
Press the emergency key element into the
opening in the key in the direction of
arrow ;until cover :of the battery tray
opens. Be sure that your fingers are not
stopping the cover from opening. X
Remove the cover of the battery tray.
X Repeatedly tap the key against your palm
until battery =falls out of the key.
X Insert the new battery with the positive
pole facing upwards. Use a lint-free cloth to
do so. X
Insert the front tabs of the battery tray's
cover first and then press to close it.
X Check the function of all key buttons on the
vehicle. Auxiliary heating* remote control
One 6 V pin battery, type 2CR11108 is
required. X
Prise apart the side arms of battery
cover ;and pull off battery cover ;.
X Remove old battery :.
X Insert the new battery. Observe the polarity
signs on the back of the remote control
when doing so.
X Slide battery cover ;back onto the
remote control.
X Use the remote control to check the vehi-
cle's auxiliary heating functions. 368
Replacing batteries (key, remote control, etc.)Practical advice
* optional
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Page 372 of 421

Remote control for entertainment
system*
You require two 1.5 V, AAA batteries.
X
Press lug ;downwards and remove cover
=.
X Remove old batteries A.
X Insert the new batteries. Observe the polar-
ity markings on the batteries and battery
tray :when doing so.
X Place cover =with tabs ?on battery
tray :.
X Press cover =until lug ;snaps into
place. Wireless headphones for entertain-
ment system*
Headphones, left side
You require two 1.5 V, AAA batteries.
X
Lift cover :upwards and open the battery
tray. When doing so, hold the left head-
phone as shown in the illustration to pre-
vent the batteries from falling out.
X Remove the old batteries.
X Insert the new batteries. Observe the polar-
ity markings on the batteries and battery
tray when doing so.
X Fold down cover :and close the battery
tray.
If the batteries have been inserted cor-
rectly, the indicator lamp will light up green
when the headphones are switched on. Changing bulbs
Notes on changing bulbs
i If you need assistance in changing the
bulbs, contact 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 purpose. In particular, work
relevant to safety or on safety-related sys-
tems must be carried out at a qualified spe-
cialist workshop.
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure Changing bulbs
369Practical advice
* optional
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Page 373 of 421

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
* optional
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Page 374 of 421

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
* optional
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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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Page 376 of 421

Removing the wiper blades
X
Remove the wiper blade from the retainer
on the wiper arm in the direction of the
arrow. Fitting
X Slide the new wiper blade into the retainer
on the wiper arm in the opposite direction
to the arrow.
X Turn the wiper blade parallel to the wiper
arm.
X Fold the wiper arm back onto the wind-
screen. Flat tyre
Flat tyre equipment variants
Your vehicle may be equipped with:
R a TIREFIT kit (Y page 315)
R a "Minispare" emergency spare
wheel* (Y page 315)
R a spare wheel* (Y page 316)
R the MOExtended run-flat sys-
tem* (Y page 381) Preparing the vehicle
i Vehicle preparation is not necessary on
vehicles with MOE tyres*. X
Stop the vehicle as far away as possible
from traffic on solid, non-slippery and level
ground.
X Switch on the hazard warning lamps.
X Engage the electric parking brake manually
(Y page 205).
X Move the DIRECT SELECT selector lever to
P.
X All occupants must get out of the vehicle.
Make sure that they are not endangered as
they get out of the vehicle.
X Make sure that no one is near the danger
area whilst a wheel is being changed. Any-
one who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.
X Switch off the engine.
X Remove the key from the ignition lock.
X Get out of the vehicle.
X Close the driver’s door.
X Place the warning triangle (Y page 314) at
a suitable distance. Observe legal require-
ments. Using the TIREFIT kit
You can use the TIREFIT kit to seal small
punctures, particularly those in the tyre tread.
You can use TIREFIT at outside temperatures
down to -20 †. G
Risk of accident
In the following situations, your safety is at
particular risk and tyre sealant is unable to
provide breakdown assistance if:
R there are cuts or punctures in the tyre
greater than 4 mm
R the wheel rim is damaged
R you have driven at very low tyre pressures
or on a flat tyre
Do not drive any further. Consult a qualified
specialist workshop which has the necessary Flat tyre
373Practical advice
* optional
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