Removing the emergency key element
X
Push release catch :in the direction of the
arrow and, at the same time, remove emer-
gency key element ;from the key.
Further information about:
R unlocking the driver's door (Y page 92)
R unlocking the luggage compartment
(Y page 97)
R locking the vehicle (Y page 93)
Inserting the emergency key element X
Push emergency key element ;completely
into the key until it engages and release
catch :is back in its basic position. Battery of the key
Important safety notes G
WARNING
Batteries contain toxic and corrosive substan- ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatal injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention immediately. H
Environmental note Batteries contain pollutants.
It is illegal to dispose of them with the household rubbish.
They must be collected sep-
arately and disposed of in an environmentally responsible
recycling system.
Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to a qualified spe-
cialist workshop or to a col-
lection point for used batter-
ies.
Mercedes-Benz recommends that you have the
batteries replaced at a qualified specialist work- shop.
Checking the battery X
Press the &or% button.
The battery is OK if battery check lamp :
lights up briefly.
The battery is discharged if battery check
lamp :does not light up briefly.
X Replace the battery (Y page 87).
If the key battery is checked within the signal
reception range of the vehicle, pressing the
& or% button:
R locks or
R unlocks the vehicle
i You can obtain a battery from any qualified
specialist workshop.
Replacing the battery You require a CR 2025 3 V cell battery.
X Take the emergency key element out of the
key (Y page 87). Key
87Opening and closing Z
Problems with the key
Problem
Possible causes/consequences and
M
MSolutions You can no longer lock or
unlock the vehicle using
the key. The key battery is discharged or nearly discharged.
X Check the key battery (Y page 87) and replace if necessary
(Y page 87).
If this does not work: X Unlock (Y page 92) or lock (Y page 93) the vehicle using the
emergency key element. There is interference from a powerful source of radio waves.
X Unlock (Y page 92) or lock (Y page 93) the vehicle using the
emergency key element. The key is faulty.
X Unlock (Y page 92) or lock (Y page 93) the vehicle using the
emergency key element.
X Have the key checked at a qualified specialist workshop. You can no longer lock or
unlock the vehicle using
KEYLESS-GO. KEYLESS-GO was deactivated.
X Reactivate KEYLESS-GO (Y page 85). The key battery is discharged or nearly discharged.
X Check the key battery (Y page 87) and replace if necessary
(Y page 87).
If this does not work: X Unlock (Y page 92) or lock (Y page 93) the vehicle using the
emergency key element. There is interference from a powerful source of radio waves.
X Unlock (Y page 92) or lock (Y page 93) the vehicle using the
emergency key element. There is a fault with KEYLESS-GO.
X Lock/unlock the vehicle using the remote control function of the
key.
X Have the vehicle and key checked at a qualified specialist work-
shop.
If the vehicle can also not be locked/unlocked using the remote con-
trol function:
X Unlock (Y page 92) or lock (Y page 93) the vehicle using the
emergency key element.
X Have the vehicle and key checked at a qualified specialist work-
shop. Key
89Opening and closing Z
Problem
Possible causes/consequences and
M
MSolutions The engine cannot be
started using the key. the on-board voltage is too low.
X Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary (Y page 395).
or
X Jump-start the vehicle (Y page 397).
or
X Consult a qualified specialist workshop. The engine cannot be
started using the Start/
Stop button. The key is in
the vehicle. The vehicle is locked.
X Unlock the vehicle and try to start the vehicle again. The key battery is discharged or nearly discharged.
X Check the key battery (Y page 87) and replace if necessary
(Y page 87).
If this does not work: X Start your vehicle with the key in the ignition lock. There is interference from a powerful source of radio waves.
X Start your vehicle with the key in the ignition lock. You have lost a key. X
Have the key deactivated at a qualified specialist workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the emer-
gency key element. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. Doors
Important safety notes
G
WARNING
If children are left unsupervised in the vehicle, they can:
R open doors and endanger other persons or
road users
R climb out and be injured by the traffic
R operate vehicle equipment and, for exam-
ple, trap themselves. Children could also set the vehicle in motion,
for example by:
R releasing the parking brake
R shifting the automatic transmission out of
park position P
R starting the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children unattended in the vehicle. Always
keep the key out of reach of children.
United Kingdom only: 90
DoorsOpening and closing
G
WARNING
When the double locks are activated, the
doors can no longer be opened from the
inside. People in the vehicle can no longer get out, e.g. in hazardous situations. There is a
risk of injury.
Therefore, do not leave any people unsuper-
vised in the vehicle, particularly children, eld-
erly people or people in need of special assis-
tance. Do not activate the double lock when
people are in the vehicle.
If the vehicle has been locked with the key or
with KEYLESS-GO, the double lock function is
activated as standard. It is then not possible to
open the doors from inside the vehicle. You can deactivate the double lock function by deacti-
vating the interior motion sensor (Y page 82).
The doors can then be opened from the inside
after the vehicle has been locked from the out-
side. You can only open the rear doors from
inside the vehicle if they are not secured by the child-proof locks (Y page 69). The anti-theft
alarm system is triggered if the door is opened
from the inside. Switch off the alarm
(Y page 81). Unlocking and opening the doors
from the inside
For all countries except the United Kingdom: you can open a door from inside the vehicle even
if it has been locked. You can only open the rear doors from inside the vehicle if they are not
secured by the child-proof locks (Y page 69).
If the vehicle has previously been locked from
the outside, opening a door from the inside will
trigger the anti-theft alarm system. Switch off
the alarm (Y page 81).
Only for the United Kingdom: if the vehicle
has been locked with the key from the outside,
the double lock function is activated as stand-
ard. It is then not possible to open the doors
from inside the vehicle. You can deactivate the
double lock function by deactivating the interior motion sensor (Y page 82). The doors can then
be opened from the inside after the vehicle has
been locked from the outside. The anti-theft
alarm system is triggered if the door is opened
from the inside. Switch off the alarm
(Y page 81). For all countries except Mexico:
X Pull door handle ;.
If the door is locked, locking knob :pops up.
The door is unlocked and can be opened.
Mexico only: X Front door: pull door handle ;.
If the door is locked, locking knob :pops up.
The door is unlocked and can be opened.
X Rear door: pull door handle ;.
If the door is locked, locking knob :pops up
and the door unlocks.
X Pull door handle ;again.
The door can be opened. Centrally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehicle from the inside. The buttons are located on both frontdoors. X
To unlock: press button :.
X To lock: press button ;.
If the front-passenger door is closed, the vehi-
cle locks.
This does not lock or unlock the fuel filler flap. Doors
91Opening and closing Z
You cannot unlock the vehicle centrally from the
inside if the vehicle has been locked from the
outside.
For all countries except the United Kingdom:
you can open a door from inside the vehicle evenif it has been locked.
Only for the United Kingdom: if the vehicle
has been locked with the key from the outside,
the double lock function is activated as stand-
ard. It is then not possible to open the doors
from inside the vehicle. You can deactivate the
double lock function by deactivating the interior
motion sensor (Y page 82). The doors can then
be opened from the inside after the vehicle has been locked from the outside.
For all countries: when a locked door is opened
from inside the vehicle, the previous unlocking
process will be observed if the vehicle has been:
R locked with the locking button for the central
locking or
R locked automatically
The vehicle will be fully unlocked if it had previ-
ously been fully unlocked. Only the door which
has been opened from the inside is unlocked if
only the driver's door had been previously
unlocked. Automatic locking feature
X
To deactivate: press and hold button :for
about five seconds until a tone sounds.
X To activate: press and hold button ;for
about five seconds until a tone sounds.
If you press one of the two buttons and do not
hear a tone, the relevant setting has already
been selected.
The vehicle is locked automatically when the
ignition is switched on and the wheels are turn-
ing. Therefore, you could be locked out if:
R the vehicle is being pushed
R the vehicle is being towed
R the vehicle is being tested on a dynamometer.
You can also activate and deactivate the auto-
matic locking function using the on-board com- puter (Y page 294). Power closing
Power closing pulls the doors and tailgate into
their locks automatically even if they are not
completely closed.
X To power close a door: push the door into
the lock up to the first detent position.
Power closing will pull the door fully closed.
X To power close the tailgate: lightly press
the tailgate downwards.
Power closing will pull the tailgate fully
closed. Unlocking the driver's door (emer-
gency key element)
If the vehicle can no longer be unlocked with the key or KEYLESS-GO, use the emergency key ele-ment.
X Take the emergency key element out of the
key (Y page 86).
X Insert the emergency key element into the
lock of the driver's door as far as it will go. X
Turn the emergency key element anti-clock-
wise to position 1.92
DoorsOpening and closing
On right-hand-drive vehicles, turn the emer-
gency key element clockwise.
The door is unlocked.
X Turn the emergency key element back and
remove it.
X Insert the emergency key element into the
key (Y page 87).
If you use the emergency key element to unlock
and open the driver's door, the anti-theft alarm
system will be triggered. Switch off the alarm
(Y page 81). Locking the vehicle (emergency key
element)
If the vehicle can no longer be locked with the
key or KEYLESS-GO, use the emergency key ele- ment.
X Open the driver's door.
X Close the front-passenger door, the rear
doors and the tailgate.
X Press the locking button (Y page 91).
X Check whether the locking knobs on the
front-passenger door and the rear doors are
still visible. Press the locking knobs down by
hand if necessary.
X Close the driver's door.
X Take the emergency key element out of the
key (Y page 87).
X Insert the emergency key element into the
lock of the driver's door as far as it will go. X
Turn the emergency key element clockwise as
far as it will go to position 1.
On right-hand-drive vehicles, turn the emer-
gency key element anti-clockwise.
X Turn the emergency key element back and
remove it. X
Make sure that the doors and the tailgate are
locked.
X Insert the emergency key element into the
key (Y page 87).
If you lock the vehicle as described above, the
fuel filler flap is not locked. The anti-theft alarm
system is not primed. Luggage compartment
Important safety notes
G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. If the tailgate is open when the engine is running, particu-
larly if the vehicle is moving, exhaust fumes
could enter the passenger compartment.
There is a risk of poisoning.
Turn off the engine before opening the tail-
gate. Never drive with the tailgate open. G
WARNING
If objects, luggage or loads are not secured or not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury, especially when braking or abruptly changing directions.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey.
! The tailgate swings upwards and to the rear
when opened. Therefore, make sure that
there is sufficient clearance above and behind
the tailgate.
The opening dimensions of the tailgate can be
found in the "Vehicle data" section
(Y page 442).
Stow luggage or loads preferably in the luggage
compartment. Observe the loading guidelines
(Y page 351).
Do not leave the key in the luggage compart-
ment. You could otherwise lock yourself out. Luggage compartment
93Opening and closing Z
Vehicles without the EASY-PACK tailgate:
the tailgate can be:
R opened and closed manually from outside
R unlocked from the inside with the emergency
release
Vehicles with the EASY-PACK tailgate: you
can:
R close the tailgate manually from outside
R open and close the tailgate automatically
from outside
R open and close the tailgate automatically
from inside
R unlock the tailgate from inside with the emer-
gency release
R limit the opening angle of the tailgate Tailgate reversing function
On vehicles with tailgate remote closing feature,
the tailgate is equipped with automatic obstacle
recognition with a reversing feature. If a solid
object blocks or restricts the tailgate when auto- matically opening or closing, this procedure is
stopped. If the tailgate is stopped during the
closing procedure, it will open again automati-
cally. The automatic obstacle detection with
reversing function is only an aid. It is not a sub-
stitute for your attentiveness when opening and closing the tailgate. G
WARNING
The reversing function does not react:
R to soft, light and thin objects, e.g. small fin-
gers
R over the last 8 mm of the closing path
This means that the reversing feature cannot
prevent someone being trapped in these sit-
uations. There is a risk of injury.
When closing make sure that no body parts
are in the closing area.
If someone is trapped:
R press the Fbutton on the key or
R pull or press the remote operating switch
on the driver's door or
R press the closing or locking button on the
tailgate or
R pull the handle on the tailgate Opening and closing manually from
outside
Opening X
Press the %button on the key.
X Pull handle :.
X Raise the tailgate.
Vehicles with the EASY-PACK tailgate: if you
pull handle :and then release it, the tailgate
opens automatically.
Closing X
Pull the tailgate down using recess :.
X Let the tailgate to drop into the lock.
X Lock the vehicle if necessary with the &
button on the key or with KEYLESS-GO.
i If a KEYLESS-GO key is detected in the lug-
gage compartment, the tailgate will not lock. 94
Luggage compartmentOpening and closing
Opening/closing automatically from
the outside
Important safety notes United Kingdom only:
G
WARNING
When the double locks are activated, the
doors can no longer be opened from the
inside. People in the vehicle can no longer get out, e.g. in hazardous situations. There is a
risk of injury.
Therefore, do not leave any people unsuper-
vised in the vehicle, particularly children, eld-
erly people or people in need of special assis-
tance. Do not activate the double lock when
people are in the vehicle.
If the vehicle has been locked from the outside, the double lock function is activated as stand-
ard. It is then not possible to open the doors
from inside the vehicle. You can deactivate the
double lock function by deactivating the interior
motion sensor (Y page 82). The doors can then
be opened from the inside after the vehicle has
been locked from the outside. You can only open the rear doors from inside the vehicle if they are
not secured by the child-proof locks
(Y page 69). The anti-theft alarm system is trig-
gered if the door is opened from the inside.
Switch off the alarm (Y page 81).
The anti-theft alarm system is triggered if the
door is opened from the inside. Switch off the
alarm (Y page 81).
All countries: G
WARNING
Parts of the body could become trapped dur-
ing automatic closing of the tailgate. More-
over, people, e.g. children, may be standing in the closing area or may enter the closing area
during the closing process. There is a risk of
injury.
Make sure that nobody is in the vicinity of the closing area during the closing process. Use one of the following options to stop the
closing process:
R press the Fbutton on the key
R pull or press the remote operating switch
on the driver's door
R press the closing or locking button on the
tailgate
R pull the handle on the tailgate G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. If the tailgate is open when the engine is running, particu-
larly if the vehicle is moving, exhaust fumes
could enter the passenger compartment.
There is a risk of poisoning.
Turn off the engine before opening the tail-
gate. Never drive with the tailgate open.
! The tailgate swings upwards and to the rear
when opened. Therefore, make sure that
there is sufficient clearance above and behind
the tailgate.
Two warning tones sound while the tailgate is
opening or closing.
The opening dimensions of the tailgate can be
found in the "Vehicle data" section
(Y page 442).
i Notes on the automatic reversing feature for
the tailgate (Y page 94).
Opening the tailgate automatically You can open the tailgate automatically with the
key or the handle in the tailgate.
X Press and hold the Fbutton on the key
until the tailgate opens.
or X When the tailgate is unlocked, pull the tailgate
handle and let it go again immediately.
or
X With the tailgate stopped in an intermediate
position, pull the tailgate upwards.
You can release the tailgate as soon as the
tailgate starts to open. Luggage compartment
95Opening and closing Z