Removing the mechanical key
XSlide release catch:in the direction of the
arrow and, at the same time, remove mechan-
ical key ;from the SmartKey completely.
Inserting the mechanical key
XPush mechanical key ;completely into the
SmartKey until it engages and release
catch :is back in its basic position.
Unlocking/locking the vehicle using
the mechanical key
The door lock for unlocking in an emergency is
on the driver’s door.
XTo unlock the driver's door: insert the
mechanical key fully into the driver's door
lock and turn it counter-clockwise.
The driver’s door is unlocked.
XTo lock the vehicle: lock all doors except the
driver's door from the inside. To do this, push
down the door-locking knobs.
XInsert the mechanical key fully into the driv-
er's door lock and turn it clockwise.
The driver's door is locked.
Battery of the key
Important safety notes
GWARNING
Batteries contain toxic and corrosive substan- ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatalinjury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately.
HEnvironmental note
Batteries contain dangerous
substances. It is against the
law to dispose of them with
the household rubbish. They
must be collected separately and recycled to protect the
environment.
Dispose of batteries in an
environmentally friendly
manner. Take discharged
batteries to a qualified spe-
cialist workshop or a special
collection point for used bat-
teries.
Mercedes-Benz recommends that you have the
battery changed at a qualified specialist work-
shop.
Checking the battery
XPress the &or% button.
If battery check lamp :lights up briefly, the
battery is sufficiently charged.
If battery check lamp :does not light up
briefly, the battery is empty.
XChange the battery (Ypage 72).
If the SmartKey battery is checked within the
signal range of the vehicle, pressing the &or
% button results in:
Rlock or
Runlock the vehicle
Key71
Opening and closing
Z
ProblemPossible causes/consequences andMSolutions
The SmartKey is faulty.
XLock the vehicle with the mechanical key (Ypage 71).
XHave the SmartKey checked at a qualified specialist workshop.
The engine cannot be
started using the Smart-
Key.The on-board voltage is too low.
XSwitch off all non-essential consumers, such as interior lighting, and
try to start the engine again.
If this does not work:
XCheck the starter battery and charge it if necessary (Ypage 264).
or
XJump-start the vehicle (Ypage 274).
or
XConsult a qualified specialist workshop.
You have lost a Smart-
Key.XHave the SmartKey deactivated at a qualified specialist workshop.
XReport the loss immediately to the vehicle insurers.
XIf necessary, have the mechanical locks replaced.
You have lost the
mechanical key.XReport the loss immediately to the vehicle insurers.
XIf necessary, have the mechanical locks replaced.
Central locking
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park position P
RStart the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
GWARNING
If persons, particularly children are subjected to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
You can open a locked door from the inside at
any time. For the sliding doors, the child-proof
locks must be deactivated.
Centrally locking and unlocking the
vehicle from the inside
You can centrally lock and unlock the whole
vehicle from the inside using the central locking
buttons on the driver's door.
Central locking73
Opening and closing
Z
XTo unlock:press the%button.
XTo lock: press the &button.
If the driver's or front-passenger door is open,
the open door is not locked.
All other doors and the tailgate/rear doors
are locked.
If a sliding door or the tailgate/rear door is
open, only the driver's and front-passenger
doors are locked.
You cannot unlock the vehicle centrally from the inside if the vehicle has been locked with the
key.
If the vehicle has been locked using the locking
button for the central locking and a door is
opened from the inside, only the door that has
been opened is unlocked.
If the vehicle has previously been locked with
the key, opening a door from the inside will trig-
ger the anti-theft alarm system. Switch off the
alarm (
Ypage 68).
Automatic locking
XTo switch on: press and hold the %button
until an acoustic tone sounds.
XTo switch on : press and hold the &but-
ton until an acoustic tone sounds. When the ignition is switched on, the vehicle will
lock automatically from a speed of approx-
imately 9 mph (15 km/h).
You could therefore be locked out if:
Rthe vehicle is being pushed.
Rthe vehicle is being towed.
Rthe vehicle is being tested on a dynamometer.
If the vehicle has been automatically locked and
a front door is opened from the interior while the
vehicle is stationary, the vehicle unlocks cen-
trally.
Driver's door and front-passenger
door
Door handle (example driver's door)
You can open the driver's or front-passenger
door from the inside at any time, even if it is
locked.
XPull door handle ;.
If a front door is locked, locking knob :pops
up. The door is unlocked and opens.
Sliding door
Important safety notes
GWARNING
When you open the sliding door, the sliding
door could hit other people as it moves back- wards. There is a risk of injury.
Only open the sliding door when traffic con-
ditions permit.
74Sliding door
Opening and closing
GWARNING
If the open sliding door is not engaged, it could
move on its own if the vehicle is on a slope.
This could trap you or other persons. There is a risk of injury.
Always make sure that the open sliding door is
engaged.
!Do not use the lower sliding door guide (car-
riage) as a step. Otherwise, you could damage
the paneling and/or the sliding door mecha-
nism.
!When you open the sliding door, first make
sure that:
Rthe rear door is not opened to an angle of
270°.
Rthe rear door is not clipped into the door
retainer.
The sliding door could otherwise collide with
the opened rear door and the doors could be damaged.
Information on opening and closing the rear
doors can be found under "Rear doors"
(
Ypage 80).
Opening and closing from the outside
The sliding door is equipped with an active
retainer, which engages the door at the end stop
when opened.
XTo open: pull door handle :in the direction
of the arrow.
The sliding door opens.
XPush back the sliding door using door han-
dle :until it engages.
XCheck the sliding door detent.
XTo close: pull door handle :in the direction
of the arrow.
The sliding door is released from its lock.
XPush the sliding door forwards using door
handle :and close.
Opening/closing from the inside
The sliding door is equipped with an active
retainer, which engages the door at the end stop
when opened.
XTo open: pull back rocker switch :.
If the door is locked, locking knob =pops up.
The sliding door unlocks and opens.
XPush back the sliding door using door han-
dle ;until it engages
XCheck the sliding door detent.
XTo close: press rocker switch :forwards.
The sliding door is released from its lock.
XPush the sliding door forwards using door
handle ;and close.
Electric sliding door
Important safety notes
GWARNING
When you open the sliding door, the sliding
door could hit other people as it moves back- wards. There is a risk of injury.
Only open the sliding door when traffic con-
ditions permit.
!Do not use the lower sliding door guide (car-
riage) as a step. Otherwise, you could damage
the paneling and/or the sliding door mecha-
nism.
Electric sliding door75
Opening and closing
Z
You must reset the electric sliding door if there
has been a malfunction or an interruption in the
voltage supply (
Ypage 78).
iPlease note, if the child-proof locks have
been activated, you cannot open the sliding
door from the inside. You can only open a
sliding door from the inside if the child-proof
locks have not been activated. Further infor-
mation can be found under "Child-proof locks
for the sliding door" (
Ypage 63) and "Open-
ing/closing from the inside" (Ypage 77).
Obstacle detection with reversing
feature
The sliding door is equipped with automatic
obstacle detection with reversing feature. If a
solid object blocks or restricts the sliding door
during the automatic closing process, the slid-
ing door opens again automatically. If the sliding
door is obstructed during the opening proce-
dure, it moves back a few centimeters in the
opposite direction and stops.
Automatic obstacle detection with reversing
feature is only an aid. It is not a substitute for
your attentiveness when closing the electrical
sliding door.
If an obstacle is detected, the display shows the
Left-hand Electric Sliding Door
ObstructionDetectedmessage for example,
and five warning tones sound.
GWARNING
The reversing feature does not react:
Rto soft, light and thin objects, e.g. small fin-
gers
Rover the last 8 mm of the closing movement
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-one has any
parts of the body within the closing area.
If someone is trapped:
Rpress the 5button on the SmartKey, or
Rpull the exterior door handle, or
Rpress the corresponding sliding door but-
ton in the center console, or
Rpress the button on the door frame, or
Rpull the rocker switch on door handle
Opening/closing from the outside
The sliding door is equipped with an active
retainer, which engages the door at the end stop
when opened.
If the vehicle is equipped with two electric slid-
ing doors; the 5button on the SmartKey can
only be used to open or close one of the two
sliding doors (
Ypage 78).
XTo open: pull door handle :in the direction
of the arrow.
or
XPress the 5button on the SmartKey for
longer than 0.5 seconds.
The sliding door unlocks, automatic operation
is started and the sliding door opens. In addi-
tion, you will hear two warning signals.
XTo close: pull door handle :in the direction
of the arrow.
or
XPress the 5button on the SmartKey for
longer than 0.5 seconds.
The sliding door is released from its lock and
automatic operation is started. The sliding
door closes.
If you press the 5button on the SmartKey,
you will hear two warning signals while the
doors close.
XTo interrupt automatic operation: pull door
handle :again.
or
XPress the 5button on the SmartKey again.
iIn unfavorable operating conditions, e.g.
frost, ice or heavy soiling, you can press and
76Electric sliding door
Opening and closing
hold the relevant sliding door button. The
electric sliding door moves with increased
force. Observe that, in such circumstances,
the obstacle detection is less sensitive. To
stop the movement, release the sliding door
button.
Opening/closing from the inside
If the sliding door is unlocked, you can open andclose the sliding door from the inside with these
controls:
Rthe Å orÆ sliding door button in the
front on the lower center console
Rthe sliding door button on the B-pillar next to
the door sill
Rthe rocker switch on the door handle
:Sliding door button for the sliding door on
the left-hand side
;Sliding door button for the sliding door on
the right-hand side
=Rocker switch
?Locking knob
ASliding door button in the door frame
You can only open a sliding door from the inside if the child-proof locks have not been activated. If the sliding door is locked, the sliding door
must first be unlocked.
The sliding door is equipped with an active
retainer, which engages the door at the end stop
when opened.
XTo open:
briefly press the respective Åor
Æ sliding door button in the center con-
sole.
or
XBriefly press sliding door button Ain the
door frame.
or
XBriefly pull back rocker switch =.
If the sliding door is unlocked, automatic
operation is started and the sliding door
opens.
If you use the ÅorÆ sliding door but-
ton in the center console you will hear two
warning signals during the opening proce-
dure.
The indicator lamp in the ÅorÆ sliding
door button in the center console flashes for
the duration of automatic operation.
The indicator lamp in the ÅorÆ sliding
door button in the center console is lit when-
ever the respective sliding door is open.
Depending on the vehicle equipment, the dis-
play can also show the Sliding Door Open
message.
XTo close:briefly press the respective Åor
Æ sliding door button in the center con-
sole.
or
XBriefly press sliding door button Ain the
door frame.
or
XBriefly press rocker switch =forward.
The sliding door is released from its lock and
automatic operation is started. The sliding
door closes.
If you use the ÅorÆ sliding door but-
ton in the center console you will hear two
warning signals during the closing procedure.
The indicator lamp in the respective Åor
Æ sliding door button in the center console
goes out whenever the sliding door is closed.
XTo interrupt automatic operation: press
the respective ÅorÆ sliding door but-
ton in the center console again.
or
Electric sliding door77
Opening and closing
Z
Problems with the sliding door
ProblemPossible causes/consequences andMSolutions
The electric sliding door
is locked in place.Unfavorable operating conditions, e.g. frost, ice or heavy soiling, may
obstruct the sliding door.
XPress and hold the sliding door button until the sliding door has
opened or closed.
The sliding door moves with increased force. Observe that, in such
circumstances, the obstacle detection is less sensitive. To stop the
movement, release the sliding door button.
XRemove the cause of the blockage at the earliest opportunity.
Tailgate
Important safety notes
GWARNING
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.
You will find details of the tailgate opening
dimensions under "Technical data"
(
Ypage 313).
Opening and closing
XTo open: press button :on the handle.
XRaise the tailgate.
XTo close: pull the tailgate firmly downwards
by strap ;and close it from outside.
Problems with the tailgate
The tailgate cannot be opened.
The voltage supply has been interrupted or the
battery charge is insufficient.
Consult a qualified specialist workshop which
has the necessary specialist knowledge and
tools to carry out the work required.
In an emergency, you can open the tailgate
using the release catch for service purposes.
XPry off the cover on the lower part of the tail-
gate with a suitable tool, e.g. the screwdriver from the vehicle tool kit.
XInsert the screwdriver into the opening and
move the release lever until the tailgate
unlocks and opens.
XSwing the tailgate upwards.
Tailgate79
Opening and closing
Z
Rear doors
Important safety notes
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. If the rear
door is open when the engine is running, par-
ticularly if the vehicle is moving, exhaust
fumes could enter the passenger compart-
ment. There is a risk of poisoning.
Turn off the engine before opening the rear
door. Never drive with the rear door open.
GWARNING
If you open a rear door, you could:
Rendanger other people or road users
Rbe caught by oncoming traffic
This is particularly the case if you open the
rear door more than 90°. There is a risk of an
accident and injury.
Only open the rear doors when traffic condi-
tions permit. Always make sure that the rear
doors are properly locked.
GWARNING
If you open the rear doors 90°, the rear lights are no longer visible. The vehicle will then be
difficult for other road users to see or will not
be seen by them at all, particularly if it is dark
or visibility is poor. There is a risk of an acci-
dent.
You should therefore ensure in this and simi-
lar situations that the vehicle is visible from
the rear in accordance with the relevant
national regulations, by using the warning tri-
angle, for instance.
!Make sure that there is sufficient clearance
when opening the rear doors. You could oth-
erwise damage the vehicle and objects in
close range of the rear doors.
You can lock the rear doors at an angle of
approx. 90° and, if necessary, 180° or 270°.
Always make sure that the open rear door is
correctly engaged in the detent.
Opening and closing from the outside
Opening the right-hand rear door
XPull handle :.
XSwing the rear door to the side until it
engages.
The rear door can also be opened beyond 90
degrees (
Ypage 81).
Opening the left-hand rear door
XMake sure that the right-hand rear door is
open and engaged.
XPull release handle :in the direction of the
arrow.
XSwing the rear door to the side until it
engages.
The rear door can also be opened beyond 90
degrees (
Ypage 81).
80Rear doors
Opening and closing