Locking/unlocking in an emergency
308 Locking/unlocking in an emergency
Emergency key
If the vehicle can no longer be unlocked or
locked with the key or the KEYLESS GO
key*, use the emergency key element.
If you use the emergency key element to
unlock and open the driver's door, the anti-
theft alarm system* will be triggered
(Y page 62).
There are several ways to turn off the alarm:
X Press the korj button on the key.
or
X Insert the key into the ignition lock.
or
X Press the KEYLESS GO button* in the igni-
tion lock. The KEYLESS GO key* must be in
the vehicle.
or
X Lock or unlock the vehicle using KEYLESS
GO*. The KEYLESS GO key* must be out-
side the vehicle. Releasing and removing the emergency
key element
1
Release catch
2 Emergency key element
X Push release catch 1in the direction of
the arrow and at the same time remove
emergency key element 2from the key. Unlocking the vehicle
If the vehicle can no longer be unlocked cen-
trally with the key or the KEYLESS GO key*:
X Remove the emergency key element from
the key (Y page 308). $
To unlock
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
$ 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. Practical advice
* optional
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Locking/unlocking in an emergency
309
X
Turn the emergency key element back and
remove it.
X Pull the door handle again. Locking the vehicle
If the vehicle can no longer be locked cen-
trally with the key or the KEYLESS GO key*:
X Close the front-passenger door, the rear
door on the front-passenger side and the
tailgate.
X Open the driver's door and the rear door on
the driver's side.
X Press the locking button on the driver's
door (Y page 74).
The locking knobs in the front-passenger
door and in the rear doors drop down.
X Press the locking knobs in the front-
passenger and rear doors down manually if
necessary.
X Exit the vehicle.
X Close the driver's door.
X Enter the vehicle through the rear door on
the driver's side.
X Push the locking pin in the driver's door
down from the inside.
X Exit the vehicle. i
Ensure that you have the vehicle key on
your person and that it is not left in the
vehicle, as the vehicle will be locked after
the next step.
X Close the rear door on the driver's side.
The vehicle is locked. Unlocking the exterior spare wheel
bracket*
1
Crank
X Take crank 1from the glove compart-
ment.
i You can also use a screwdriver, key or
similar implement. X
Insert crank 1into the hole under the
spare wheel bracket.
X Push crank 1up in the direction of the
arrow.
The spare wheel bracket is unlocked. Unlocking the tailgate
If the tailgate cannot be opened, use the
emergency release on the inside of the tail-
gate. 1
Release catch
2 Release catch cover
! The tailgate swings upwards and to the
rear when opened. Therefore, make sure
that there is sufficient clearance above and
behind the tailgate. Practical advice
* optional
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Changing the batteries
3111
To move forwards
2 To push down
3 To push back
X Move the top of the head restraint cushion
forwards in the direction of arrow 1.
X Push the head restraint cushion down in
the direction of arrow 2as far as it will go.
X Push the head restraint cushion firmly
backwards in the direction of arrow 3until
it engages.
X Repeat this procedure for the second head
restraint. Changing the batteries
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 sub-
stances. 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
specialist workshop, e.g. a Mercedes-Benz
Service Centre, or to a special collection
point for old batteries. Key or KEYLESS GO key*
Checking the batteries X
Press the jork button.
The batteries are in order if the battery
charge indicator lamp lights up briefly.
Changing the batteries You require two CR 2025 3 V cell batteries.
X
Remove the emergency key element from
the key (Y page 308). 1
Emergency key element
2 Battery tray Practical advice
* optional
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Changing the bulbs
312
X
Insert emergency key element 1into the
opening in the key and push in the direction
of the arrow.
Battery tray 2is released.
X Pull battery tray 2out of the key. 1
Batteries
X Remove old batteries 1from the battery
tray.
X Insert the new batteries beneath the con-
tact spring with the positive terminal facing
upwards. Use a lint-free cloth to do so.
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. Auxiliary heating* remote control
One 6V pin battery, type 2CR11108 is
required. 1
Battery
2 Battery cover
X Prise apart the side arms of battery cover
2 and slide off battery cover 2.
X Remove old battery 1.
X Insert the new battery. Observe the polarity
signs on the back of the remote control
when doing so.
X Slide battery cover 2back onto the
remote control.
X Use the remote control to check the vehi-
cle's auxiliary heating functions. Changing the bulbs
Notes on changing bulbs
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure
that all bulbs function correctly at all times. 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.
Otherwise, 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.
H7 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 chang-
ing 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
contacts on xenon bulbs. Therefore, never
remove the cover from xenon bulbs. Practical advice
* optional
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Replacing the wiper blades
321
X
Insert the corresponding bulb holder and
turn it clockwise.
X Insert lamp unit 1and press in firmly.
Lamp unit 1snaps into place.
Changing the bulbs in the licence plate
lamps Licence plate lamp
1
Screws
X Switch off the lights.
X Open the tailgate.
X Remove screws 1.
X Remove the licence plate lamp.
X Replace the bulb.
X Insert the licence plate lamp.
X Replace and tighten screws 1. Replacing the wiper blades
Windscreen wiper blades
G
Risk of accident
The windscreen will not longer be properly
wiped if the wiper blades are worn. This
could prevent you from observing the traffic
conditions, thereby causing an accident.
Replace the wiper blades twice a year, ide-
ally 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.
! Make sure that you touch only the wiper
arm of the windscreen wiper to avoid dam-
aging the windscreen wiper blades. Removing 1
Wiper blade
2 Release clips
3 Folding direction
4 Wiper arm
5 To remove the wiper blade
X Remove the key from the ignition lock.
X Fold wiper arm 4away from the wind-
screen until it engages.
X Press both release clips 2.
X Fold wiper blade 1in the direction of
arrow 3.
X Remove the wiper blade in the direction of
arrow 5. Practical advice
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Replacing the wiper blades
322
Fitting
1
Wiper blade
2 Retaining clips
3 Folding direction
4 Bracket
5 Lug
6 Recess
X Position new wiper blade 1with
recess 6on lug 5.
X Fold wiper blade 1in the direction of
arrow 3onto the wiper arm, until retaining
clips 2engage in bracket 4.X
Make sure that wiper blade 1is seated
correctly.
X Fold the wiper arm back onto the wind-
screen. Rear window wiper blade
G
Risk of injury
The wiper arm could be set in motion and
injure you if the windscreen wipers are
switched on.
Remove the key from the ignition lock
before replacing the wiper blade.
Removing 1
Wiper arm
2 Wiper blade X
Remove the key from the ignition lock.
X Fold wiper arm 1away from the rear win-
dow until it engages.
X Position wiper blade 2at a right angle to
wiper arm 1.
X Hold wiper arm 1and press wiper
blade 2in the direction of the arrow until
it releases.
X Remove wiper blade 2.
Fitting X
Place the new wiper blade 2onto wiper
arm 1.
X Hold wiper arm 1and press wiper blade
2 in the opposite direction to the arrow
until it engages.
X Make sure that wiper blade 2is seated
correctly.
X Position wiper blade 2parallel to wiper
arm 1.
X Fold wiper arm 1back onto the rear win-
dow. Practical advice
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Flat tyre
323Flat tyre
Flat tyre equipment variants
Your vehicle may be equipped with:
R a TIREFIT kit (Y page 255)
R a "Minispare" emergency spare
wheel* (Y page 256)
R a collapsible emergency spare
wheel* (Y page 258)
R a spare wheel* (Y page 256)
R the MOExtended run-flat sys-
tem* (Y page 333) Preparing the vehicle
i Vehicle preparation is not necessary on
vehicles with MOE tyres*.
X Make sure that highway level* is selec-
ted 37
(Y page 158).
X Stop your vehicle as far away from traffic
as possible on solid, non-slippery, level
ground.
X Switch on the hazard warning lamps. X
Firmly depress the parking brake.
X Move the selector lever to P.
X All occupants must get out of the vehicle.
Make sure that they are not endangered as
they do so.
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.
Vehicles without KEYLESS GO* X
Remove the key from the ignition lock.
Vehicles with KEYLESS GO* X
Open the driver's door.
The on-board electronics have status 0,
which is the same as the key having been
removed.
X Vehicles with the AIRMATIC package* and
the Off-Road Pro engineering package*:
Remove the KEYLESS GO button from the
ignition lock. For all vehicles X
Get out of the vehicle.
X Close the driver's door.
X Place the warning triangle ( Ypage 254) at
a suitable distance. Observe legal require-
ments.
i To operate the electric air-pump, you can
use the power socket in the luggage com-
partment (Y page 205) or rear compart-
ment (Y page 205), even when the ignition
is switched off. For example, to use TIREFIT
or to inflate the collapsible emergency
spare wheel*.
An emergency cut-off ensures that the on-
board voltage does not drop too low. If the
on-board voltage is too low, power to the
sockets is automatically cut-off. This
ensures that there is sufficient power to
start the engine.
37 Not on steel-sprung vehicles. Practical advice
* optional
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Flat tyre
331G
Risk of injury
Comply with the manufacturer’s safety
instructions on the sticker on the electric
air pump.
Your vehicle is equipped with one of the fol-
lowing two electric air pumps:
R Version 1: electric air pump with a pres-
sure gauge on the hose.
R Version 2: electric air pump with an inte-
grated pressure gauge.
The following description applies to both
types. Differences in the way they are used
will be explained explicitly. Version 1
1
Flap
2 On/off switch 3
Electric connector with cable
4 Air pump hose with pressure gauge and
pressure release screw
5 Union nut Version 2
2
On/off switch
3 Electric connector with cable
4 Pressure gauge
5 Union nut
6 Pressure release button
X Version 1: open flap1.
X Version 1: pull connector 3and air hose
4 out of the housing.
X Version 2: pull connector 3and the air
hose out of the housing. X
Version 1: make sure that pressure
release screw 4on the pressure gauge is
closed.
X Remove the cap from the valve on the tyre.
X Screw union nut 5on the air hose onto the
valve.
X Make sure on/off switch 2of the electric
air pump is set to 0.
X Insert connector 3into the socket in the
luggage compartment (Y page 205) or in
the rear compartment (Y page 205).
! The socket /cigarette lighter *in the front
centre console is not designed for operat-
ing the electric air pump.
X Vehicles with a key: make sure that the
key is turned to position 2(Y page 75) in
the ignition lock.
or
X Vehicles with KEYLESS GO: press the
KEYLESS GO button twice. Practical advice
* optional
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