Problems with the SmartKey
Problem Possible causes/consequences and
0050
0050Solutions You cannot lock or
unlock the vehicle
using the SmartKey. The SmartKey battery is discharged or nearly discharged.
X
Point the tip of the SmartKey at the driver's door handle from a
distance of approximately 1.5 ft (50 cm) and try to unlock or
lock the vehicle again.
If this does not work:
X Check the SmartKey battery (Y page 70) and replace it if
necessary (Y page 71).
X Unlock (Y page 75) or lock (Y page 75) the vehicle using the
mechanical key. The SmartKey is faulty.
X
Lock or unlock the vehicle using the mechanical key
(Y page 75).
X Have the SmartKey checked at a qualified specialist workshop. You have lost a
SmartKey. X
Have the SmartKey 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
mechanical key. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. The engine cannot be
started using the
SmartKey. The SmartKey has been in position
0(Y page 139) for a
considerable time.
X Remove the SmartKey and reinsert it into the ignition lock.
X Start the engine. The on-board voltage is too low.
X Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to turn the SmartKey again.
If this does not work:
X Check the battery and charge it if necessary (Y page 301).
or
X Jump-start the vehicle (Y page 303).
or
X Consult a qualified specialist workshop. 72
SmartKeyOpening and closing
Doors
Important safety notes
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. 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. 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 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 park
position P or shift manual transmission into
neutral.
R start 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. Unlocking and opening doors from
the inside
If the vehicle has previously been locked with
the SmartKey, opening a door from the inside
will trigger the anti-theft alarm system.
Switch off the alarm (Y page 65).
Only open the door when the traffic situation
permits. Doors
73Opening and closing Z
X
Front doors: pull door handle 0044.
If the door is locked, locking knob 0043pops
up. The door is unlocked and can be
opened.
X Rear compartment doors: pull
handle 0043up.
The door is unlocked.
X Pull door handle 0044. Centrally locking and unlocking the
vehicle from the inside 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 shift the manual transmission into neutral.
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.
You can centrally lock or unlock the vehicle
from the inside.
The central locking button does not lock or
unlock the fuel filler flap. X
To unlock: press button 0043.
X To lock: press button 0044.
The vehicle locks when all the doors and
the tailgate are closed.
You can open a front door from inside the
vehicle even if it has been locked. Only open
the door when the traffic situation permits.
If the vehicle has been locked with the central
locking button:
R and the SmartKey is restored to the factory
settings, the entire vehicle is unlocked if a
front door is opened from inside the
vehicle.
R and the SmartKey is set to an individual
setting, only the front door that is opened
from inside the vehicle is unlocked.
If the vehicle has been locked centrally with
the SmartKey, it does not unlock if you use
the central locking button.
i You cannot unlock the vehicle centrally
from the inside if the vehicle has been
locked from the outside using the
SmartKey.
i It is only possible to lock the vehicle
centrally if all doors are closed. 74
DoorsOpening and closing
G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. If the rear
door 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 rear
door. Never drive with the rear door open.
! The tailgate swings out to the side when
opened. Therefore, make sure that there is
sufficient clearance.
i Do not leave the SmartKey in the cargo
compartment. Otherwise, you could lock
yourself out. Opening
You can only open the rear door after
unlocking it first.
X Press the 0036button on the SmartKey. X
Press release button 0043and pull door
handle 0044.
X Open the rear door. Closing
X Push the rear door closed from outside the
vehicle.
X If necessary, lock the vehicle with the
0037 button on the SmartKey. Side windows
Important safety notes
G
WARNING
While opening the side windows, body parts
in the closing area could become trapped.
There is a risk of injury.
Make sure that no body parts are in close
proximity during the closing procedure. If
somebody becomes trapped, release the
switch or press the switch to open the side
window again. G
WARNING
While opening the side windows, body parts
could become trapped between the side
window and the door frame as the side
window moves. There is a risk of injury.
Make sure that nobody touches the side
window during the opening procedure. If
somebody becomes trapped, release the
switch or pull the switch to close the side
window again. Opening and closing the side
windows
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.
The switches on the driver's door take
precedence.
The side windows cannot be operated from
the rear when the override feature for the side
windows is activated (Y page 60). Side windows
77Opening and closing Z
0043
Front left
0044 Front right
0087 Rear right
0085 Rear left
X Turn the SmartKey to position 1or 2in the
ignition.
X To open: press the corresponding switch.
X To close: pull the corresponding switch.
X To open automatically: press the
corresponding switch briefly beyond the
point of resistance.
The side window opens completely.
X To interrupt automatic operation: press
or pull the corresponding switch again.
i You can continue to operate the side
windows after you switch off the engine or
remove the SmartKey. This function is
available for up to five minutes or until the
driver's or front-passenger door is opened.
i The side windows cannot be operated
from the rear when the override feature for
the side windows is activated (Y page 60).Convenience opening
i The convenience opening feature can
only be operated using the SmartKey. The
SmartKey must be close to the driver's
door handle. You can ventilate the vehicle before you start
driving. To do this, the SmartKey is used to
carry out the following functions
simultaneously:
R
unlock the vehicle
R open the side windows
R open the sliding sunroof
R switch on the seat ventilation for the
driver's seat and front-passenger seat
X Point the tip of the SmartKey at the driver's
door handle.
X Press and hold the 0036button until the
side windows and the sliding sunroof are in
the desired position.
X To interrupt convenience opening:
release the 0036button. Problems with the side windows
G
WARNING
Closing the side windows with increased force
or without the anti-entrapment feature could
lead to serious or even fatal injury. Make sure
that nobody can become trapped when
closing the side windows.
Problem: a side window cannot be closed
because objects are trapped between the
side window and the door frame.
X Remove the objects.
X Close the side window.
Problem: a side window cannot be closed
and you cannot see the cause.
If a side window is obstructed during closing
and reopens again slightly:
X Immediately after the window blocks, pull
the corresponding switch again until the
side window has closed. 78
Side windowsOpening and closing
Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 24).Exterior lighting
Important safety notes
For reasons of safety, Mercedes-Benz
recommends that you drive with the lights
switched on even during the daytime. In some
countries, operation of the headlamps varies
due to legal requirements and self-imposed
obligations. Driving abroad
Conversion to symmetrical low beam Switch the headlamps to symmetrical low
beam in countries in which traffic drives on
the opposite side of the road from the country
where the vehicle is registered. This prevents
glare to oncoming traffic. When using
symmetrical lights, the edge of the road is not
lit as widely and as far ahead as normal.
Have the headlamps converted at a qualified
specialist workshop as close to the border as
possible before driving in these countries.
Conversion to asymmetrical low beam
after returning Have the headlamps converted back to
asymmetrical low-beam headlamps at a
qualified specialist workshop as soon as
possible after crossing the border again. Light switch
Operation !
Switch off the parking lamps and low-
beam headlamps when you leave the
vehicle. This prevents the battery from
discharging.
! If the battery has been excessively
discharged, the parking lamps or standing
lamps are automatically switched off to
enable the next engine start. Always park
your vehicle safely and sufficiently lit
according to legal standards. Avoid the
continuous use of the 0060parking lamps
for several hours. If possible, switch on the
0064 right or the 0063left standing lamp. 00470063
Left-hand standing lamps
00480064 Right-hand standing lamps
00490060 Parking lamps, side marker lamps,
license plate and instrument cluster
lighting
004A0058 Automatic headlamp mode/daytime
running lamps
004B0058 Low-beam/high-beam headlamps
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
X Turn the light switch to 0058.
The turn signals, high-beam headlamps and
the high-beam flasher are operated using the
combination switch (Y page 103).98
Exterior lightingLights and windshield wipers
The exterior lighting (except the parking/
standing lamps) switches off automatically if
you:
R remove the SmartKey from the ignition lock
R open the driver's door with the SmartKey
in position 0.
Low-beam headlamps 00470063
Left-hand standing lamps
00480064 Right-hand standing lamps
00490060 Parking lamps, side marker lamps,
license plate and instrument cluster
lighting
004A0058 Automatic headlamp mode/daytime
running lamps
004B0058 Low-beam/high-beam headlamps
X To switch on the low-beam headlamps:
turn the SmartKey in the ignition lock to
position 2or start the engine.
X Turn the light switch to 0058.
The 0058 indicator lamp in the instrument
cluster lights up. Daytime running lamps Daytime running lamps in Canada
00470063
Left-hand standing lamps
00480064 Right-hand standing lamps
00490060 Parking lamps, side marker lamps,
license plate and instrument cluster
lighting
004A0058 Automatic headlamp mode/daytime
running lamps
004B0058 Low-beam/high-beam headlamps
The daytime running lamps function is
required by law in Canada. It cannot therefore
be deactivated.
X Turn the light switch to 0058.
With the engine running: depending on the
ambient light, the daytime running lamps or
the low-beam headlamps are switched on.
When the low-beam headlamps are
switched on, the 0058indicator lamp in the
instrument cluster lights up.
When the engine is running and the vehicle is
stationary: if you move the selector lever from
a drive position to P, the daytime running
lamps/low-beam headlamps go out after
three minutes.
When the engine is running, the vehicle is
stationary and in high ambient light
brightness: if you turn the light switch
to 0060, you turn on the daytime running
lamps and parking lamps.
If the engine is running and you turn the light
switch to 0058, the manual settings take
precedence over the daytime running lamps. Exterior lighting
99Lights and windshield wipers
Daytime running lamps in the USA
00470063
Left-hand standing lamps
00480064 Right-hand standing lamps
00490060 Parking lamps, side marker lamps,
license plate and instrument cluster
lighting
004A0058 Automatic headlamp mode/daytime
running lamps
004B0058 Low-beam/high-beam headlamps
In the USA, the daytime running lamps are
deactivated upon delivery from the factory.
X To activate the daytime running
lamps: activate the daytime running lamps
function in the on-board computer
(Y page 215).
X Turn the light switch to 0058.
With the engine running: depending on the
ambient light, the daytime running lamps or
the low-beam headlamps are switched on.
When the low-beam headlamps are
switched on, the 0058indicator lamp in the
instrument cluster lights up.
If the engine is running and you turn the light
switch to 0060or0058, the manual settings
take precedence over the daytime running
lamps.
Automatic headlamp mode G
WARNING
If the light switch is set to 0058and it is foggy,
snowing or there is poor visibility, the low-
beam headlamps will not come on
automatically. This could endanger you and others. In such situations turn the light switch
to
0058.
The automatic headlamp feature is only an
aid. The driver is responsible for the vehicle's
lighting at all times. 00470063
Left-hand standing lamps
00480064 Right-hand standing lamps
00490060 Parking lamps, side marker lamps,
license plate and instrument cluster
lighting
004A0058 Automatic headlamp mode/daytime
running lamps
004B0058 Low-beam/high-beam headlamps
X To switch on automatic headlamp
mode: turn the light switch to 0058.
SmartKey in position 1in the ignition lock:
the parking lamps are switched on or off
automatically depending on the brightness
of the ambient light.
With the engine running: if you have
activated the daytime running lamps
function in the on-board computer, the
daytime running lamps or the low-beam
headlamps are switched on or off
automatically depending on the brightness
of the ambient light.
When the low-beam headlamps are
switched on, the 0058indicator lamp in the
instrument cluster lights up. 100
Exterior lightingLigh
ts and windshield wipers