2013 MERCEDES-BENZ M-Class key

Problem Possible causes/consequences and
0001 Solutions
The engine cannot be
started using the
SmartKey. 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 387).
or
X Jump-start the vehicle (Y page 389).
or
X Consult a qualified specialist workshop. The engine cannot be
started using KEYLESS-
GO. The SmartKey is in
the vehicle. Ad
oor is open. Therefore, the SmartKey cannot be detected as
easily.
X Close the door and try to start the vehicle again. There is interference from a powerful source of radio waves.
X
Start your vehicle with the SmartKey in the ignition lock. Doors
Important safety notes
G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shift the automatic transmission out of
parking position P.
R starting 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. G
WARNING
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. Achild'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 84
DoorsOpening and closing

themselves when doing so or be seriously or
eve nfatally 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. G
WARNING
Do not carry heavy or hard objects in the
passenger compartment or cargo
compartmentu nless 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 Unlocking and opening doors from
the inside
You can open a door from inside the vehicle
eve nifith as been locked. You can only open
the rear doors from inside the vehicle if they
are no tsecured by the child-proof locks
(Y page 65).
If the vehicle has been locked with the
SmartKey or with KEYLESS-GO, opening a
door from the inside will trigger the anti-theft
alarm system. Switch off the alarm
(Y page 75). X
Front door: pull door handle 0003.
If the door is locked, locking knob 0002pops
up. The door is unlocked and can be
opened.
X Rear door: pull up locking knob 0002on the
relevant rear door.
The rear 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. The buttons are located on
both fron tdoors. 0002
To unlock
0003 To lock
X To unlock: press button 0002.
X To lock: press button 0003.
If the front-passenger door is closed, the
vehicle locks.
Meanwhile, the fuel filler flap will not be
locked or unlocked.
You cannot unlock the vehicle centrally from
the inside if the vehicle has been locked with
the SmartKey or KEYLESS-GO.
You can open a front door from inside the
vehicle even if it has been locked. Doors
85Opening and closing Z

If the vehicle has been locked using the
locking button for the central locking, or has
been locked automatically, and a door is
opened from the inside:
R
the vehicle will be fully unlocked if it had
previously been fully unlocked
R only the door which has been opened form
the inside is unlocked if only the driver's
door had been previously unlocked Automatic locking feature
0002
To deactivate
0003 To activate
X To deactivate: press and hold button 0002
for aboutf ive seconds until a tone sounds.
X To activate: press and hold button 0003for
about five seconds until a tone sounds.
i 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
turning.
You could therefore be locked out if:
R the vehicle is being pushed.
R the vehicle is being towed.
R the vehicle is on a roller dynamometer.
You can also switch the automatic locking
function on and off using the on-board
computer (Y page 276). Power closing feature
Power closing pulls the doors and trunk lid
into their locks automatically even if they are
only partly closed.
X To power-close adoor: 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
(mechanical key)
If the vehicle can no longer be unlocked with
the SmartKey, use the mechanical key.
If you use the mechanical key to unloc kand
open the driver's door, the anti-thef talarm
system will be triggered ( Ypage 75).
X Take the mechanical key out of the
SmartKey (Y page 80).
X Insert the mechanical key into the lock of
the driver's door as far as it will go. 0005
To unlock
X Turn the mechanical key counter-clockwise
to position 0005.
The door is unlocked.
X Turn the mechanical key back and remove
it.
X Insert the mechanical key into the
SmartKey. 86
DoorsOpening and closing

Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the
SmartKey, use the mechanical key.
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 85).
X Chec kwhether the locking knobs on the
front-passenger door and the rear doors
are still visible. Press down the locking
knobs manually, if necessary (Y page 85).
X Close the driver's door.
X Take the mechanical key out of the
SmartKey (Y page 80).
X Insert the mechanical key into the lock of
the driver's door as far as it will go. 0005
To lock
X Turn the mechanical key clockwise as far
as it will go to position 0005.
X Turn the mechanical key back and remove
it.
X Make sure that the doors and the tailgate
are locked.
X Insert the mechanical key into the
SmartKey.
i If you lock the vehicle as described above,
the fuel filler flap is not locked. The anti-
theft alarm system is not armed. Cargo 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,
particularly 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
tailgate. Never drive with the tailgate open. G
WARNING
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. Achild'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. Cargo compartment
87Opening and closing Z

G
WARNING
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
! The tailgate swings upwards and to the
rear when opened .Therefore, make sure
that there is sufficient clearance above and
behind the tailgate.
i Tailgate opening dimensions
(Y page 452).
Do not leave the SmartKey in the cargo
compartment. You could otherwise lock
yourself out.
Vehicles without the EASY-PACK
tailgate: the tailgate can be:
R opened and closed manually from outside
R unlocked from inside with the emergency
release
For 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
emergency release
R limit the opening angle of the tailgate Opening/closing from outside
Opening X
Press the 000Cbutton on the SmartKey.
X Pull handle 0002.
X Raise the tailgate.
Vehicles with the EASY-PACK tailgate: if
you pull handle 0002and then release it, the
tailgate opens automatically.
Closing G
WARNING
To prevent possible personal injury, always
keep hands and fingers away from the cargo
compartmento pening when closing the
tailgate. Be especially careful when small
children are around. X
Pull the tailgate down using recess 0002.
X Allow the tailgate to drop into the lock.
X Lock the vehicle if necessary with
the 000B button on the SmartKey or with
KEYLESS-GO. 88
Cargo compartmentOpening and closing

i
If a KEYLESS-GO key is detected in the
cargo compartment, the tailgate will not
lock. Opening/closing automatically from
outside
Important safety notes G
WARNING
Parts of the body could become trapped
during automatic closing of the tailgate.
Moreover, 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 0004button on the SmartKey.
R 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,
particularly 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
tailgate. 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.
i Tailgate opening dimensions
(Y page 452).
i The tailgate is equipped with an
automatic reversing feature. If an object blocks or restricts the tailgate during the
closing process, the tailgate opens again
automatically.
Opening the tailgate automatically You can open the tailgate automatically with
the SmartKey or the handle in the tailgate.
X
Press and hold the 0004button on the
SmartKey until the tailgate opens.
or
X If the tailgate is unlocked, pull the handle
and let it go again immediately.
Closing the tailgate automatically G
WARNING
Parts of the body could become trapped
during automatic closing of the tailgate.
Moreover, 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 0004button on the SmartKey.
R 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. Cargo compartment
89Opening and closing Z

Closing and locking button (example
:vehicle with
EASY-PACK tailgate and KEYLESS-GO)
0002 Closing button
0003 Locking button
X To close: press closing button 0002on the
tailgate.
or
X Press and hold the 0004button on the
SmartKey until the tailgate closes.
Vehicles with the EASY-PACK tailgate and
KEYLESS-GO: you can simultaneously close
and lock the tailgate.
X Press locking button 0003on the tailgate.
If a KEYLESS-GO key is detected outside
the vehicle, the tailgate closes and locks.
All the doors must be shut and the
SmartKey located in the vicinity of the
tailgate.
i The tailgate cannot be opened and closed
with the SmartKey if there is a SmartKey in
the ignition.
If the tailgate touches an objec twhile
closing, the closing procedure is
interrupted and the tailgate reopens.
i If a KEYLESS-GO key is detected in the
cargo compartment, the tailgate will not
lock. Opening/closing automatically from
inside
Important safety notes G
WARNING
Parts of the body could become trapped
during automatic closing of the tailgate.
Moreover, 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 0004button on the SmartKey.
R 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,
particularly 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
tailgate. 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.
i Tailgate opening dimensions
(Y page 452).
i The tailgate is equipped with an
automatic reversing feature. If an object
blocks or restricts the tailgate during the
closing process, the tailgate opens again
automatically. 90
Cargo compartmentOpening and closing

Opening and closing
You can open and close the tailgate from the
driver's seat when the vehicle is stationary
and unlocked.
X To open: pull remote operating switch 0002
for the tailgate until the tailgate opens.
X To close: turn the SmartKey to position 1
or 2in the ignition lock.
X Press remote operating switch for
tailgate 0002until the tailgate is closed. Limiting the opening angle of the
tailgate
Important safety notes !
Make sure there is sufficien tclearance to
open the tailgate fully when setting the
opening angle. The tailgate could otherwise
be damaged. Ideally, set the opening angle
outside.
Activating You can limit the opening angle of the
tailgate. This is possible in the top half of its
opening range, up to approximately 4in
(10 cm) before the stop.
This could be useful, for example, if there is
insufficien tspace above the tailgate.
X To open the tailgate: pull the handle on
the tailgate.
X To stop the opening procedure at the
desired position: press the closing button (Y
page 89) in the tailgate or pull the handle
on the outside of the tailgate again.
X To store the position: press and hold the
closing button in 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 X
Press and hold the closing button
(Y page 89) in the tailgate until you hear
two short tones. Tailgate emergency release
Important safety notes !
The tailgate swings upwards and to the
rear when opened. Therefore, make sure
that there is sufficient clearance above and
behind the tailgate.
i Tailgate opening dimensions
(Y page 452).
If the tailgate can no longer be opened from
outside the vehicle, use the emergency
release on the inside of the tailgate.
Opening X
Take the mechanical key out of the
SmartKey (Y page 80).
X Insert mechanical key 0003into the opening
in paneling 0002. Cargo compartment
91Opening and closing Z