2011 MERCEDES-BENZ M-Class Door lock

ProblemPossible causes/consequences and M SolutionsThe engine cannot be
started using the
SmartKey.The on-board voltage is too low.XSwitch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
XCheck the starter battery and charge it if necessary
( Y page 312).
or
XJump-start the vehicle ( Y page 315).
or
XConsult a qualified specialist workshop.The engine cannot be
started using KEYLESS-
GO. The SmartKey is in
the vehicle.A door is open. Therefore, the SmartKey cannot be detected as
easily.XClose the door and try to start the vehicle again.There is interference from a powerful source of radio waves.XStart your vehicle with the SmartKey in the ignition lock.Doors
Important safety guidelines
GWarning!
When leaving the vehicle, always remove the
SmartKey from the starter switch. Always
take the SmartKey with you and lock the
vehicle. Do not leave children unattended in
the vehicle, even if they are secured in a child
restraint system, or with access to an
unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. The children
could
R injure themselves on parts of the vehicle
R be seriously or fatally injured through
excessive exposure to extreme heat or cold
R injure themselves or cause an accident with
vehicle equipment that can be operated
even if the SmartKey is removed from the
starter switch or removed from the vehicle,
such as seat adjustment, steering wheel
adjustment, or the memory function
If children open a door, they could injure other
persons or get out of the vehicle and injure
themselves or be injured by following traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and the child could be burned by these
parts.GWarning!
Do not carry heavy or hard objects in the
passenger compartment or cargo
compartment unless they are firmly secured
in place.
Unsecured or improperly positioned cargo
increases a child’s risk of injury in the event
of
R strong braking maneuvers
R sudden changes of direction
R an accident
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Unlocking and opening doors from
the inside
You can open a door from inside the vehicle
even if it has been locked, unless the child-
proof locks have been activated (Y page 63).
Open the door only when the traffic
conditions permit.
If the vehicle has been opened with the
SmartKey or KEYLESS-GO key, opening from
inside triggers the anti-theft alarm system.
Switch off the alarm ( Y page 69).XPull door handle ;.
If the door is locked, locking knob : pops
up. The door is unlocked and can be
opened.
Centrally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehicle
from the inside. This feature may be useful if,
for example, you wish to unlock the front-
passenger door from the inside or lock the
vehicle before you pull away.
The central locking/unlocking button does
not lock or unlock the fuel filler flap.
The buttons are located on both front doors.
i You cannot unlock the vehicle centrally
from the inside if the vehicle has been
locked with the SmartKey or KEYLESS-GO.
i It is only possible to lock the vehicle
centrally if the front-passenger door is
closed.
XTo lock: press button ;.
The vehicle locks itself when all doors and
the tailgate are closed.XTo unlock: press button :.
You can open a front door from inside the
vehicle even if it has been locked. Open the
door only when the traffic conditions permit.
If the vehicle has been locked with the locking
button for the central locking function:
R and the SmartKey has been reset to the
factory settings, the complete vehicle is
unlocked when a front door is opened from
the inside
R and the SmartKey has been set to an
individual setting, only the front door that
is opened from the inside is unlocked
If the vehicle has been locked centrally with
the SmartKey or with KEYLESS-GO, it is not
unlocked if you use the unlocking button for
the central locking system.
Automatic locking
The vehicle locks automatically when the
ignition is switched on and the wheels of the
vehicle are moving at a speed above 9 mph
(15 km/h) . Therefore, there is a risk of being
locked out when the vehicle is being pushed,
towed or tested on a dynamometer.
You can switch the automatic locking
function on and off using the on-board
computer ( Y page 217).
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Unlocking the driver's door
(mechanical key)
If the vehicle can no longer be unlocked
centrally with the SmartKey or KEYLESS-GO:XTake the mechanical key out of the
SmartKey ( Y page 75).XInsert the mechanical key into the lock of
the driver's door as far as it will go.XFirmly turn the mechanical key counter-
clockwise as far as it will go to position
1 and hold it in this position.XPull the door handle quickly.
The locking knob pops up.
The door is unlocked.XTurn the mechanical key back and remove
it.XPull the door handle again.
Locking the vehicle
If the vehicle can no longer be locked
centrally with the SmartKey or KEYLESS-GO:
XClose the front-passenger door, the rear
door on the front-passenger side and the
tailgate.XOpen the driver’s door and the rear door on
the driver’s side.XPress the locking button on the driver’s
door ( Y page 79).
The locking knobs in the front-passenger
door and in the rear doors drop down.XPress down the locking knobs in the front-
passenger and rear doors manually, if
necessary.XClose the driver's door from the outside.XPress down the locking knob of the driver's
door by reaching in through the open rear
door.
i Make sure that you have the SmartKey on
your person and that it has not been left in
the vehicle.
XClose the rear door on the driver’s side.XMake sure that the doors and the tailgate
are locked.
i If you lock the vehicle as described above,
the fuel filler flap is not locked. The anti-
theft alarm system is not primed.
Cargo compartment
Important safety guidelines
Do not leave the SmartKey in the cargo
compartment. You could otherwise lock
yourself out.
GWarning
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint system, and do not give them access
to an unlocked vehicle. A child’s unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. They could:
R injure themselves on vehicle parts
R be seriously or fatally injured by extreme
heat or cold
R injure themselves or have an accident with
vehicle equipment that may still be in
operation even after the SmartKey has
been removed from the ignition, such as the
seat adjustment, steering wheel
adjustment or memory function.
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If children open a door, they could cause
severe or even fatal injury to other persons; if
they get out of the vehicle, they could injure
themselves when doing so or be seriously or
even fatally injured by any passing traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system’s
metal parts, for example, could become very
hot, and a child could be burned on these
parts.GWarning!
Do not carry heavy or hard objects in the
passenger compartment or cargo
compartment unless they are firmly secured
in place.
Unsecured or improperly positioned cargo
increases a child’s risk of injury in the event
of
R strong braking maneuvers
R sudden changes of direction
R an accident
GWarning!
Make sure the tailgate is closed when the
engine is running and while driving. Among
other dangers, deadly carbon monoxide (CO)
gases may enter vehicle interior resulting in
unconsciousness and death.
! The tailgate swings upwards and to the
rear when opened. Therefore, make sure
that there is sufficient clearance above and
behind the tailgate.
For the tailgate to be opened fully, there must
be a minimum clearance from floor to ceiling
of 7.20 ft (2.20 m).
The tailgate can be:
R opened and closed manually from outside
R opened and closed automatically from
outside
R opened and closed automatically from
inside
Opening and closing from the outside
Opening
You can only open the tailgate after unlocking
it first.
XPress the % button on the SmartKey.XPull handle :.XRaise the tailgate.
Closing
GWarning!
To prevent possible personal injury, always
keep hands and fingers away from the cargo
compartment opening when closing the
tailgate. Be especially careful when small
children are around.
XPull the tailgate down using recess :.XPush the tailgate closed from outside the
vehicle.XLock the vehicle if necessary with
the & button on the SmartKey or with
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Automatic opening and closing from
the outside
Important safety guidelinesGWarning!
Make sure the tailgate is closed when the
engine is running and while driving. Among
other dangers, deadly carbon monoxide (CO)
gases may enter vehicle interior resulting in
unconsciousness and death.
! The tailgate swings upwards and to the
rear when opened. Therefore, make sure
that there is sufficient clearance above and
behind the tailgate.
For the tailgate to be opened fully, there must
be a minimum clearance from floor to ceiling
of 7.20 ft (2.20 m).
Opening
You can open the tailgate automatically with
the SmartKey or the handle in the tailgate.
XPress and hold the F button on the
SmartKey until the tailgate opens.
or
XWhen the tailgate is unlocked, pull the
handle and let it go again immediately.
Closing
GWarning!
Monitor the closing procedure carefully to
make sure no one is in danger of being
injured. To prevent possible personal injury,
always keep hands and fingers away from the
cargo compartment opening when closing the
tailgate. Be especially careful when small
children are around. To stop the closing
procedure, do one of the following:
R Press or pull the remote tailgate opening/
closing switch on the driver’s door.
R Press the tailgate closing switch.
RPress the KEYLESS-GO locking/closing
switch.
R Pull outside handle on the tailgate.
R When no SmartKey is inserted in the starter
switch (vehicles with KEYLESS-GO: Make
sure the vehicle’s on-board electronics
have status 0): Press button F on the
SmartKey.
You can close the tailgate automatically using
the SmartKey, the closing button 6
or the
locking button 7
.
Closing button and locking button (example:
vehicle with the EASY-PACK tailgate and KEYLESS-
GO)
XTo close: press closing button : on the
tailgate.
or
XPress and hold the F button on the
SmartKey until the tailgate closes.XTo close and lock simultaneously:
Press locking button ; on the tailgate.
i
The tailgate can only be opened and
closed with the SmartKey if there is no
SmartKey in the ignition lock.
If the tailgate touches an object while
closing, the closing procedure is
interrupted and the tailgate reopens.
i Only with KEYLESS-GO: if you leave a
KEYLESS-GO key in the cargo
compartment, the tailgate will not lock.
6 For vehicles with the EASY-PACK tailgate only.
7 For vehicles with the EASY-PACK tailgate and KEYLESS-GO only.82Cargo compartmentOpening and closing
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The tailgate is not closed unless a
KEYLESS-GO key is detected.
Automatic opening and closing from
the inside
GWarning!
Maintain sight of the area around the rear of
the vehicle while operating the tailgate with
the door-mounted remote tailgate switch.
Monitor the opening procedure carefully to
make sure no one is in danger of being
injured.
To interrupt the opening procedure, press or
pull the door-mounted remote tailgate switch.
When the SmartKey is not inserted in the
starter switch (vehicles with KEYLESS-GO:
Make sure the vehicle’s on-board electronics
have status 0): Press button F on the
SmartKey.
GWarning!
Maintain sight of the area around the rear of
the vehicle while operating the tailgate with
the door-mounted remote tailgate switch.
Monitor the closing procedure carefully to
make sure no one is in danger of being
injured.
To interrupt the closing procedure, press or
pull the door-mounted remote tailgate switch.
GWarning!
To prevent possible personal injury, always
keep hands and fingers away from the cargo
compartment opening when closing the
tailgate. Be especially careful when small
children are around.
GWarning!
Make sure the tailgate is closed when the
engine is running and while driving. Among
other dangers, deadly carbon monoxide (CO)
gases may enter vehicle interior resulting in
unconsciousness and death.
You can open/close the tailgate from the
driver's seat when the vehicle is stationary.XTo open: pull remote operating switch :
for the tailgate until the tailgate opens.XTo close: turn the SmartKey to position 1
or 2 in the ignition lock.XPress remote operating switch for
tailgate : until the tailgate is closed.
If the tailgate touches an object, the closing
procedure is interrupted and the tailgate
reopens.
XTo interrupt the closing procedure: pull
or push the remote operating switch for
tailgate :.
Limiting the opening angle of the
tailgate
Important safety guidelines
You can limit the opening angle of the tailgate
in the top half of its opening range. This could
be useful, for example, if there is insufficient
space above the tailgate.
! Make sure there is sufficient clearance to
open the tailgate fully when setting the
opening angle. The tailgate could otherwise
be damaged. Ideally, set the opening angle
outside.
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Activating the tailgateXTo open the tailgate: pull the handle on
the tailgate.XTo stop the opening procedure at the
desired position: press the close button
( Y page 82) on the tailgate or pull the
handle on the outside of the tailgate again.XTo store the position: press and hold the
closing button on the tailgate until you hear
a short tone.
The opening angle limiter is activated. The
tailgate will now stop in the stored position
when opening.
Deactivating the tailgate
XPress and hold the closing button
( Y page 82) in the tailgate until you hear
two short tones.
Tailgate emergency release
If the tailgate can no longer be opened from
outside the vehicle, use the emergency
release on the inside of the tailgate.
To open the tailgate completely, a minimum
clearance of 7.20 ft (220 cm) above the
ground is necessary.
! The tailgate swings upwards and to the
rear when opened. Therefore, make sure
that there is sufficient clearance above and
behind the tailgate.
XPull cover ; off the tailgate trim.XPush release catch : to the left as far as
the stop and open the tailgate.
Side windows
Important safety guidelines
GWarning
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint system, and do not give them access
to an unlocked vehicle. A child’s unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. They could:
R injure themselves on vehicle parts
R be seriously or fatally injured by extreme
heat or cold
R injure themselves or have an accident with
vehicle equipment that may still be in
operation even after the SmartKey has
been removed from the ignition, such as the
seat adjustment, steering wheel
adjustment or memory function.
If children open a door, they could cause
severe or even fatal injury to other persons; if
they get out of the vehicle, they could injure
themselves when doing so or be seriously or
even fatally injured by any passing traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system’s
metal parts, for example, could become very
hot, and a child could be burned on these
parts.
GWarning!
Do not carry heavy or hard objects in the
passenger or cargo compartment unless they
are firmly secured in place.
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Unsecured or improperly positioned cargo
increases a child’s risk of injury in the event
of
R strong braking maneuvers
R sudden changes of direction
R an accidentGWarning!
When opening or closing the door windows,
make sure there is no danger of anyone being
harmed by the opening/closing procedure.
The door windows are equipped with the
automatic operation and anti-entrapment
features. If during automatic operation a door
window encounters an obstruction that
blocks its path, the anti-entrapment feature
will stop the door window and open it slightly.
The door windows operate differently when
the switch is pulled and held. See the "Closing
when a door window is blocked" section in
this chapter for details.
The closing of the door windows can be
immediately halted by releasing the switch or,
if the switch was pulled past the resistance
point and released, by either pressing or
pulling the respective switch.
If a door window encounters an obstruction
that blocks its path in a circumstance where
you are closing the door windows by pressing
and holding button & on the SmartKey or
by pressing and holding the lock button
(vehicles with KEYLESS-GO) on an outside
door handle, the anti-entrapment feature will
not operate.
Activate the override switch when children
are riding in the back seats of the vehicle. The
children may otherwise injure themselves,
e.g. by becoming trapped in the door window
opening.
GWarning!
Do not keep any part of your body up against
the window pane when opening a window. The
downward motion of the pane may pull that
part of your body down between the window
pane and the door frame and trap it there. If
there is a risk of entrapment, release the
switch and pull it to close the window.
Opening and closing the side
windows
:Front left;Front right=Rear right?Rear left
The switches for all side windows are located
on the driver's door. There is also a switch on
each door for the corresponding side window.
i It is not possible to operate the door
windows from the rear compartment when
the override feature is activated for the
door windows.
XTurn the SmartKey to position 2 in the
ignition lock.XTo open: press the corresponding switch.XTo close: pull the corresponding switch.
i
If you press the switch beyond the point
of resistance, an automatic opening/
closing process is started in the
corresponding direction. You can stop
automatic operation by pressing again.
i You can continue to operate the side
windows after you switch off the engine.
This function remains active for five
minutes or until one of the front doors is
opened.
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