lights up once, then KEYLESS-GO is deac-
tivated.
XTo activate:press any button on the
SmartKey or insert the SmartKey into the
ignition lock.
KEYLESS-GO and all of its associated fea-
tures are available again.
Changing the settings of the locking
system
You can find information about this in the
Digital Operator's Manual.
Mechanical key
General notes
If the vehicle can no longer be locked or
unlocked with the SmartKey, use the
mechanical key.
If you use the mechanical key to unlock and
open the driver's door or the trunk lid/tail-
gate, the anti-theft alarm system will be trig-
gered (
Ypage 87).
There are several ways to turn off the alarm:
XTo deactivate the alarm with the Smart-
Key: press the %or& button on the
SmartKey.
or
XInsert the SmartKey into the ignition lock.
or
XTo deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the igni-
tion lock. The SmartKey must be in the
vehicle.
or
XLock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle. If you unlock the vehicle using the mechanical
key, the fuel filler flap will not be unlocked
automatically.
XTo unlock the fuel filler flap:
insert the
SmartKey into the ignition lock.
Removing the mechanical key
XPush release catch :in the direction of
the arrow and at the same time remove
mechanical key ;from the SmartKey.
For further information about:
Runlocking the driver's door (Ypage 96)
Runlocking the trunk (Ypage 103)
Runlocking the tailgate (Ypage 103)
Rlocking the vehicle (Ypage 96)
Inserting the mechanical key
XPush mechanical key ;completely into
the SmartKey until it engages and release
catch :is back in its basic position.
92SmartKey
Opening and closing
Problems with the SmartKey
ProblemPossible causes/consequences andMSolutions
You can no longer lock
or unlock the vehicle
using the SmartKey.The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 93) and replace it if nec-
essary (
Ypage 93).
If this does not work:
XUnlock (Ypage 96) or lock (Ypage 96) the vehicle using the
mechanical key.
The SmartKey is faulty.
XUnlock (Ypage 96) or lock (Ypage 96) the vehicle using the
mechanical key.
XHave the SmartKey checked at a qualified specialist workshop.
You can no longer lock
or unlock the vehicle
using KEYLESS-GO.The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 93) and replace it if nec-
essary (
Ypage 93).
If this does not work:
XUnlock (Ypage 96) or lock (Ypage 96) the vehicle using the
mechanical key.
There is interference from a powerful source of radio waves.
XUnlock (Ypage 96) or lock (Ypage 96) the vehicle using the
mechanical key.
KEYLESS-GO is malfunctioning.
XLock/unlock the vehicle using the remote control function of
the SmartKey.
XHave the vehicle and SmartKey checked at a qualified specialist
workshop.
If the vehicle can also not be locked/unlocked using the remote
control function:
XUnlock (Ypage 96) or lock (Ypage 96) the vehicle using the
mechanical key.
XHave the vehicle and SmartKey checked at a qualified specialist
workshop.
You have lost a Smart-
Key.XHave the SmartKey deactivated at a qualified specialist work-
shop.
XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
94SmartKey
Opening and closing
ProblemPossible causes/consequences andMSolutions
You have lost the
mechanical key.XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
The 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
(
Ypage 278).
or
XJump-start the vehicle (Ypage 279).
or
XConsult a qualified specialist workshop.
The engine cannot be
started using KEYLESS-
GO. The SmartKey is in
the vehicle.The vehicle is locked.
XUnlock the vehicle 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 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.
Ideally, place luggage or loads in the trunk/
cargo compartment. Observe the loading
guidelines (
Ypage 238).
Information in the Digital Operator's
Manual
In the Digital Operator's Manual you will find
information on the following topics:
RUnlocking and opening doors from the
inside
RCentrally locking and unlocking the vehicle
from the inside
RAutomatic locking feature
Doors95
Opening and closing
Z
ually.Ifyou release the handle, the tailgate
opens automatically.
Closing
Recess (example: Sedan )
XPull the trunk lid/tailgate downusing
recess :.
XWagon: let the tailgate drop and engage in
the lock.
XIf necessary, lock the vehicle with the &
button on the SmartKey (
Ypage 90) or with
KEYLESS -GO (
Ypage 91).
XIfnecessary, lock the vehicle with the &
button on the SmartKey (
Ypage 90) or with
KEYLESS -GO (
Ypage 91).
XIfnecessary, lock the vehicle with the &
button on the SmartKey (
Ypage 90).
iIfa KEYLESS -GO keyisdetected in the
trunk /cargo compartment, the trunk lid/
tailgate willnot lock.
Sedan: the trunk lid then opens again.
Opening/closing automatically from
outside
Important safety notes
GWARNIN G
Part sof th ebody could become trapped dur-
ing automatic closin gof th etrunk lid/tailgate.
Moreover, people, e.g. children ,may be
standing in th eclosin garea or may ente rth e
closin garea durin gth eclosin gprocess. Ther e
is aris kof injury.
Mak esure that nobody is in th evicinity of th e
closin garea durin gth eclosin gprocess.
Use on eof th efollowin goption sto stop th e
closin gprocess:
Rpress th eF buttonon th eSmartKey.
Rpull or press th eremot eoperating switch
on th edriver' sdoor .
Rpress th eclosin gor lockin gbutto non th e
trunk lid/tailgate.
Rpull th ehandle on th etrunk lid/tailgat e
GWARNING
Combustion engines emit poisonous exhaust
gase ssuc has carbon monoxide. Exhaust
gase scan ente rth evehicl einterio rif th e
trunk lid/tailgat eis open when th eengin eis
running, especially if th evehicl eis in motion .
Ther eis aris kof poisoning .
Always switch off th eengin ebefore opening
th etrunk lid/tailgate. Never driv ewit hth e
trunk lid/tailgat eopen .
!The trunk lid/tailgate swings upwards
and to the rear when opened. Therefore,
make sure that there issufficient clearance
above and behind the trunk lid/tailgate.
Opening
You can open the trunk lid/tailgate automat-
ical ly wit h the SmartKey or the handle inthe
trunk lid/tailgate.
XPress and hold the Fbutton on the
Sm artKey unt ilthe trunk lid/tailgate
opens.
or
XIf the trunk lid/tailgate isunlocked, pullthe
trunk lid/tailgate handle and let itgo again
immediately.(
Ypage 97)(Ypage 97)
98Trunk/cargo compartment
Opening and closing
Closing
Closingbutto nand lockin gbutto n(example :
Sedan)
Sedan: on vehicles with the trunk lid remote
closing feature, you can close the trunk lid
automatically. For vehicles with trunk lid
remote closing feature and KEYLESS-GO: you
can simultaneously close the trunk lid and
lock the vehicle.
Wagon: for vehicles with KEYLESS-GO, you
can simultaneously close the tailgate and
lock the vehicle.
XTo close: press closing button :in the
trunk lid/tailgate.
XTo simultaneously close the trunk lid/
tailgate and lock the vehicle:
Press closing button ;in the trunk lid/
tailgate. The KEYLESS-GO key must be in
the rear detection range of the vehicle.
The trunk lid/tailgate closes.
If all the doors are closed, the vehicle locks.
iIf KEYLESS-GO detects a SmartKey in the
trunk/cargo compartment, the trunk lid/
tailgate opens again after it is closed.
If KEYLESS-GO detects a second SmartKey
outside the vehicle, the trunk lid/tailgate
remains closed.
HANDS-FREE ACCESS
Important safety notes
GWARNING
The vehicle's exhaust system may be very hot. You could burn yourself by touching the
exhaust system if you use HANDS-FREE
ACCESS. There is a risk of injury. Always
ensure that you only make the kicking move-
ment within the detection range of sensors.
!If the key is within the rear detection
range of KEYLESS-GO, situations such as
the following could lead to the uninten-
tional opening of the trunk lid/tailgate:
Rusing a car wash
Rusing a power washer
Make sure that the SmartKey is at least
10 ft (3 m) away from the vehicle.
General notes
Sedan: with KEYLESS-GO and HANDS-FREE
ACCESS, you can open or close the trunk lid
or stop the closing procedure without using
your hands.
Wagon: with KEYLESS-GO and HANDS-FREE
ACCESS, you can open or close the tailgate or
stop the procedure without using your hands.
This is useful if you have your hands full. To do
this, make a kicking movement under the
bumper with your foot.
Observe the following points:
RCarry your KEYLESS-GO key about your
person. The KEYLESS-GO key must be in
the rear detection range of the vehicle.
RWhen making the kicking movement, make
sure that you are standing firmly on the
ground and that there is sufficient clear-
ance to the rear of the vehicle. You could
otherwise lose your balance e.g. on ice.
Trunk/cargo compartment99
Opening and closing
Z
(Example: Sedan)
RAlways ensure that you only make the kick-ing movement within the detection range of
sensors :.
RStand at least 12 in (30 cm) away from the
rear area while doing so.
RDo not come into contact with the bumper
while making the kicking movement. Oth-
erwise, the sensors may not function cor-
rectly.
RHANDS-FREE ACCESS does not function
when the engine is started.
RIf a KEYLESS-GO key is within the rear
detection range of KEYLESS-GO, HAND-
FREE ACCESS could be triggered. For this
reason, the trunk lid/tailgate could open or
close unintentionally, e.g. if you:
-sit down on the edge of the trunk/edge
of the cargo compartment.
-set something down or lift something up
behind the vehicle.
-polish the rear of the vehicle.
Do not carry the KEYLESS-GO key about
your person in these situations or in situa-
tions similar to these. You can thus avoid
unintentionally opening or closing the trunk
lid/tailgate.
RDirt caused by road salt around sensors :
may restrict functionality.
RUsing the HANDS-FREE ACCESS with a
prosthetic leg may restrict functionality.
Operation
(Example: Sedan)
XTo open/close: kick into sensor detection
range :under the bumper with your foot.
Sedan: you will hear a warning tone while
the trunk lid is closing.
Wagon: you will hear a warning tone while
the tailgate is opening or closing.
XIf the trunk lid/tailgate does not open
after several attempts: wait at least ten
seconds, then move your foot under the
bumper again.
iIf you hold your foot under the bumper for
too long, the trunk lid/ tailgate does not
open or close. Repeat the leg movement
more quickly if this occurs.
Sedan: to cancel the closing procedure:
Rmove your foot in sensor detection
range:under the bumper
Rpull the handle on the outside of the trunk
lid
Rpress the closing button in the trunk lid, or
Rpress the Fbutton on the SmartKey
If the closing procedure of the trunk lid is
canceled, the trunk lid opens again auto-
matically.
Wagon: to stop the opening or closing pro-
cedure:
Rmove your foot in sensor detection
range :under the bumper
Rpull the handle on the outside of the tailgate
100Trunk/cargo compartment
Opening and closing
XInsert the mechanical key into the trunk lid
lock as far as it will go.
XTurn the mechanical key clockwise from
position1to position 2.
XRemove the mechanical key.
XInsert the mechanical key into the Smart-
Key.
Unlocking the trunk (Sedan)
!
The trunk lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the trunk lid.
If the trunk cannot be unlocked with the
SmartKey or KEYLESS-GO, use the mechani-
cal key.
If you use the mechanical key to unlock and
open the trunk lid, the anti-theft alarm system
will be triggered (
Ypage 87).
XTake the mechanical key out of the Smart-
Key (
Ypage 92).
XInsert the mechanical key into the trunk lid
lock as far as it will go.
XTurn the mechanical key from position 1
counter-clockwise as far as it will go to
position 2.
The trunk is unlocked.
XTurn the mechanical key back to position
1 and remove it.
XInsert the mechanical key into the Smart-
Key.
Trunk emergency release (Sedan)
You can open the trunk lid from inside the
vehicle with the emergency release button.
XPress emergency release button :briefly.
The trunk lid unlocks and opens.
The trunk lid can be unlocked and opened
with the trunk lid emergency release when
the vehicle is stationary or while driving.
The trunk lid emergency release does not
open the trunk lid if the battery is disconnec- ted or discharged.
Trunk lid emergency release light:
Remergency release button :flashes for
30 minutes after the trunk lid is opened.
Remergency release button :flashes for
60 minutes after the trunk lid is closed.
Tailgate emergency release (Wagon)
General notes
!The tailgate swings upwards and to the
rear when opened. Therefore, make sure
that there is sufficient clearance above and
behind the tailgate.
iTailgate opening dimensions
(
Ypage 344).
If the tailgate can no longer be opened from
outside the vehicle, use the emergency
release on the inside of the tailgate.
On vehicles with a folding bench seat, you can
use the handle to open the tailgate from
inside the vehicle (
Ypage 97).
Trunk/cargo compartment103
Opening and closing
Z
be trapped by the wiper arm. There is a risk of
injury.
Always switch off the windshield wipers and
ignition before changing the wiper blades.
!To avoid damaging the wiper blades,
make sure that you touch only the wiper
arm of the wiper.
!Never open the hood/tailgate if a wiper
arm has been folded away from the wind-
shield/rear window.
Never fold a windshield wiper arm without a
wiper blade back onto the windshield/rear
window.
Hold the windshield wiper arm firmly when
you change the wiper blade. If you release
the wiper arm without a wiper blade and it
falls onto the windshield/rear window, the
windshield/rear window may be damaged
by the force of the impact.
Mercedes-Benz recommends that you have
the wiper blades changed at a qualified
specialist workshop.
Replacing the wiper blades
Removing the wiper blades
XRemove the SmartKey from the ignition
lock or turn it to position 0(KEYLESS-GO).
XFold the wiper arm away from the wind-
shield.
XFirmly press release knob :and pull wiper
blade ;upwards from the wiper arm in the
direction of the arrow. Installing the wiper blades
XPosition new wiper blade
:in the retainer
on the wiper arm and slide it into place in
the direction of the arrow.
The wiper blade audibly engages.
XMake sure that the wiper blade is seated
correctly.
XFold the wiper arm back onto the wind-
shield.
Replacing the rear window wiper blade
Removing a wiper blade
XRemove the SmartKey from the ignition
lock.
XFold wiper arm :away from the rear win-
dow.
XPosition wiper blade ;at a right angle to
wiper arm :.
XHold wiper arm :and press wiper
blade ;in the direction of the arrow until
it releases.
XRemove wiper blade ;.
126Windshield wipers
Lights and windshield wipers