114 Controls in detailLocking and unlockingSmartKey with KEYLESS-GO 1‹ Lock button
2Š Opening button for trunk
(
page 121)
3Mechanical key locking tab
4Œ Unlock button
5Battery check lamp
6Â Panic button (
page 96)
!
To prevent possible malfunction, avoid ex-
posing the SmartKey with KEYLESS-GO to high
levels of electromagnetic radiation.
Warning!
G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO with you and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. It is possible for children
to open a locked door from the inside, which
could result in an accident and/or serious
personal injury.i
USA only:
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interfer-
ence, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
i
Canada only:
This device complies with RSS-210 of Industry
Canada. Operation is subject to the following
two conditions:
(1) This device may not cause interference, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
i
You can also open and close the windows
and tilt/sliding sunroof or tilt/sliding panel* us-
ing the SmartKey with KEYLESS-GO
(
page 239).
115 Controls in detail
Locking and unlocking
Important notes on using KEYLESS-GO
You can also use the SmartKey with
KEYLESS-GO like a normal SmartKey
(page 110).
You can combine KEYLESS-GO func-
tions with normal SmartKey functions
(e.g. unlocking with KEYLESS-GO and
locking with button ‹).
Always carry the SmartKey with
KEYLESS-GO with you.
Never store the SmartKey with
KEYLESS-GO together with:
Electronic items such as a cellular
phone or another SmartKey with
KEYLESS-GO
Metallic objects such as coins or
metal foil
Doing so could impair the function of
the KEYLESS-GO system.
To lock or unlock the vehicle, the
SmartKey with KEYLESS-GO must be
located outside the vehicle within ap-
proximately 3 ft (1 m) of a door or the
trunk lid.
In order to start the engine with the
SmartKey with KEYLESS-GO:
The SmartKey with KEYLESS-GO
must be located in the vehicle.
The brake pedal must be firmly de-
pressed. Do not depress the accel-
erator.
If the SmartKey with KEYLESS-GO is
positioned farther away from the vehi-
cle, the system may no longer recog-
nize the SmartKey with KEYLESS-GO.
The vehicle cannot be locked or the
engine started via the KEYLESS-GO
system.
If the SmartKey with KEYLESS-GO is re-
moved from the vehicle (e.g. if passen-
ger exits the vehicle with the SmartKey
with KEYLESS-GO)
!
If you can no longer lock or unlock the vehi-
cle with the SmartKey with KEYLESS-GO, then
the batteries in the SmartKey are discharged,
the SmartKey with KEYLESS-GO is malfunction-
ing or the vehicle battery is drained.
Check the batteries in the SmartKey with
KEYLESS-GO and replace them if necessary
(page 441).
Use the mechanical key to unlock the driv-
er’s door (
page 436) and the trunk
(
page 437).
Use the mechanical key to lock the driver’s
door (
page 437) and the trunk
(
page 126).
Have the vehicle battery checked by an au-
thorized Mercedes-Benz Center.
If the SmartKey with KEYLESS-GO is malfunc-
tioning, contact an authorized Mercedes-Benz
Center.
117 Controls in detail
Locking and unlocking
Global locking
Press lock button on an outside door
handle (
page 65).
With the trunk and all doors closed:
All turn signal lamps flash three
times.
An acoustic signal sounds three
times.
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey with
KEYLESS-GO so when you pull the driver’s
outside door handle, only the driver’s door
and the fuel filler flap unlocks.
Press and hold buttonsŒ and‹
simultaneously for about 5 seconds un-
til battery check lamp5 (
page 114)
flashes twice.
The SmartKey with KEYLESS-GO will
then function as follows:
Unlocking driver’s door and fuel filler
flap
Pull the driver’s outside door handle.
All turn signal lamps flash once.
An acoustic signal sounds once.
The locking knob in the driver’s
door moves up.
The anti-theft alarm system is dis-
armed.Global unlocking
Pull any outside door handle other than
the driver’s outside door handle.
All turn signal lamps flash once.
An acoustic signal sounds once.
The locking knobs in the doors
move up.
The anti-theft alarm system is dis-
armed.
118 Controls in detailLocking and unlockingGlobal locking
Press lock button on an outside door
handle (
page 65).
With the trunk and all doors closed:
All turn signal lamps flash three
times.
An acoustic signal sounds three
times.
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.
Restoring to factory setting
Press and hold buttonsŒ and‹
simultaneously for about 5 seconds un-
til battery check lamp5 (
page 114)
flashes twice.Global locking using the KEYLESS-GO
lock button on the trunk lid*
Depending on production date, your vehi-
cle may be equipped with the KEYLESS-GO
lock button on trunk lid.
1KEYLESS-GO lock button on trunk lid
Press lock button1 on the trunk lid.
With the trunk and all doors closed:
All turn signal lamps flash three
times.
An acoustic signal sounds three
times.
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.
i
You can also lock the vehicle using the
KEYLESS-GO lock button on trunk lid (depending
on vehicle production date) or, vehicles with
trunk opening/closing system*, KEYLESS-GO
locking/ closing switch (
page 121).
i
To prevent a possible inadvertent lockout,
the trunk will open automatically if a SmartKey
with KEYLESS-GO is recognized inside the vehi-
cle or in the trunk.
i
You can also lock the vehicle using the lock
button on an outside door handle (
page 65) or,
vehicles with trunk opening/closing system*,
KEYLESS-GO locking/ closing switch
(
page 121).
119 Controls in detail
Locking and unlocking
Checking batteries in the SmartKey or SmartKey with KEYLESS-GO*
Press button‹ orŒ.
The battery check lamp (
page 110)
or (
page 114) comes on briefly to in-
dicate that the SmartKey or SmartKey
with KEYLESS-GO batteries are in or-
der.Loss of the SmartKey or SmartKey with
KEYLESS-GO*
If you lose your SmartKey, SmartKey with
KEYLESS-GO or mechanical key, you
should do the following:
Have the SmartKey or SmartKey with
KEYLESS-GO deactivated by an autho-
rized Mercedes-Benz Center.
Report the loss of the SmartKey,
SmartKey with KEYLESS-GO or the me-
chanical key immediately to your car
insurance company.
Have the mechanical lock replaced if
necessary.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
Opening the doors from the inside
You can open a locked door from the in-
side. Open door only when conditions are
safe to do so.
1Locking knob
2Inside door handle
!
If the battery check lamp does not come on
briefly during check, the SmartKey or SmartKey
with KEYLESS-GO batteries are discharged.
Replace the batteries (
page 441).
You can obtain the required batteries at any au-
thorized Mercedes-Benz Center.
i
If the batteries are checked within signal
range of the vehicle, pressing button‹ or
Œ will lock or unlock the vehicle accordingly.
126 Controls in detailLocking and unlockingIllumination of the emergency release but-
ton:
The button will flash for 30 minutes af-
ter opening the trunk.
The button will flash for 60 minutes af-
ter closing the trunk.
Valet locking
1Neutral position
2Locked
Close the trunk (
page 122).
Remove the mechanical key from the
SmartKey (
page 436).
Insert the mechanical key in the trunk
lid lock.
i
The emergency release button does not
open the trunk, if the vehicle battery is dis-
charged or disconnected.
i
If the vehicle has previously been locked us-
ing the SmartKey or KEYLESS-GO*, opening the
trunk from the inside using the emergency re-
lease button will trigger the anti-theft alarm sys-
tem.
To cancel the alarm, do one of the following:
Insert the SmartKey or the SmartKey with
KEYLESS-GO* in the starter switch.
Press button Œ or ‹ on the SmartKey
or the SmartKey with KEYLESS-GO*.
In vehicles with KEYLESS-GO*:
Pull an outside door handle.
The SmartKey with KEYLESS-GO* must be
within 3 ft (1 m) of the vehicle.
Press the KEYLESS-GO* start/stop button
(page 39).
The SmartKey with KEYLESS-GO* must be
inside the vehicle.
i
To deny any unauthorized person access to
the trunk, e.g. when you valet park the vehicle,
lock it separately with the mechanical key. Leave
only the SmartKey or SmartKey with
KEYLESS-GO* less its mechanical key with the
vehicle.
145 Controls in detail
Lighting
Interior lighting in the front
The controls are located in the overhead
control panel.1Left front reading lamp on/off
2Automatic control on/off
3Rear interior lighting on/off
4Right front reading lamp on/off
5Front interior lighting on/off
6Interior lighting
7Ambient lighting
8Front reading lamps
Deactivating automatic control
Press switch2.
The interior lighting remains switched
off in darkness, even when you:
unlock the vehicle
remove the SmartKey from the
starter switch
open a door
open the trunk
Activating automatic control
Press switch2.
The interior lighting switches on in
darkness, when you:
unlock the vehicle
remove the SmartKey from the
starter switch
open a door
open the trunk
The interior lighting switches off after a
preset time (
page 176).
!
An interior lamp switched on manually does
not go out automatically.
Leaving an interior lamp switch in the ON posi-
tion for extended periods of time with the engine
turned off could result in a discharged battery.
i
The interior lighting is factory-set to auto-
matic mode.
i
If a door remains open, the interior lighting
switches off automatically after approximately
5minutes.
An interior lamp switched on manually does not
go out automatically.
203 Controls in detail
Good visibility
Rear window defroster
The rear window defroster uses a large
amount of power. To keep the battery
drain to a minimum, switch off the
defroster as soon as the rear window is
clear. The defroster is automatically
deactivated after approximately 6 to
17 minutes of operation depending on the
outside temperature.
Switch on the ignition (
page 37).Activating
Press button1 (
page 206) or
(
page 222) or buttonF
(page 207) or (
page 223) on the
respective climate control panel.
The indicator lamp on the button
comes on.Deactivating
Press buttonF or1 again.
The indicator lamp on the button goes
out.
Warning!
G
Any accumulation of snow and ice should be
removed from the rear window before
driving. Visibility could otherwise be
impaired, endangering you and others.
!
If the rear window defroster switches off too
soon and the indicator lamp starts flashing, this
means that too many electrical consumers are
operating simultaneously and there is insuffi-
cient voltage in the battery. The system re-
sponds automatically by deactivating the rear
window defroster.
As soon as the battery has sufficient voltage, the
rear window defroster automatically turns itself
back on.