Page 67 of 498

Locking/unlockingthe driver's door with the
me chanical key
00CE
Ifyo uwish tolock theve hicle entirely using
th e mechanical key,firs t press the button for
locking from the inside while the driver's
door is open. Then proceed tolock the driv‐
er's door using the mechanical key.
00BBInsertthe mechanical keyas far as it will go
into opening 1inthe co ver.
00BBPull and hold the door handle.
00BBPull the co ver on the mechanical keyas
st ra ight as possible away from theve hicle
until it releases.
00BBRe lease the door handle.
00BBTo unlock :turn the mechanical keycounter -
clo ckwise toposition 0047.
00BBTolock: turnthe mechanical keyclo ckwise
to position 0047.
00BBCarefully press the co ver onto the lock cylin‐
der until it engages and is seated firm ly.
Tr unk
Opening the trunk lid
0071
WARNING Risk ofexhaust gas poisoning
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Exhaust
ga ses can enter theve hicle interior if the
trunk lid is open when the engine is running,
especially if theve hicle is in motion.
00BBAlw ays switch off the engine before
opening the trunk lid.
00BBNe ver drive with the trunk lid open.
Opening and closing 65
Page 69 of 498

tipove r or be throw n around and thereby hit
ve hicle occupants.
There is a risk of injur y,particularly in the
ev ent of sudden braking or a sudden change
in direction.
00BBAlw aysstow objects in such a wayth at
th ey cannot be thro wn around.
00BBBefore the journe y,secure objects, lug‐
ga ge or loads against slipping or tipping
ove r.
0071
WARNING Risk of becoming trapped
duri ng au tomatic closing of the trunk lid
Pa rts of the body could become trapped dur‐
ing automatic closing of the trunk lid. More‐
ove r,people, e.g. children, may be standing
in the closing area or may enter the closing
area during the closing process.
00BBMake sure that nobody is in the vicinity
of the closing area during the closing
process.
00BBUse one of thefo llowing options tostop
th e closing process:
RPress the008B button on the
SmartK ey.
RPress or pull there mo teoperating
switch on the driver's door.
RPress the closing or locking button
on the trunk lid.
RPress theto p of thest ar on the
trunk lid.
Ve hicles with HANDS-FREE ACCESS: It is also
possible tostop the closing process bymoving
yo ur foot in a kicking motion under there ar
bumper.
Yo u ha vethefo llowing options toclose the
trunk lid:
00BBPull the trunk lid down using the handle
re cess and push it closed.
00BBVe hicles with HANDS-FREE ACCESS: With
th e trunk lid comple tely opened ,ki ck your
fo ot below the bumper (
→page 69).
00BBVe hicles with trunk lid co nvenience clos‐
ing and KEYLESS-GO: With th e trunk lid
comple tely opened, press and hold the008B
button on the trunk (with the SmartK eyinthe
vicinity of theve hicle).
00BBVe hicles with trunk lid co nvenience clos‐
ing: Press trunk lid remo teoperating switch
1.
Opening and closing 67
Page 70 of 498

00BBVehicles with trunk lid co nvenience clos‐
ing: Press closing button 1inthe trunk lid.
00BBVe hicles with trunk lid co nvenience clos‐
ing and KEYLESS-GO: Press locking button
2 inthe trunk lid.
If a SmartK eyis de tected outside theve hicle,
th e trunk lid closes and theve hicle is loc ked. Au
tomatic reve rsing function of the trunk lid
If an object restricts the trunk lid during the
automatic closing process, the trunk lid opens
again automaticall y.The automatic reve rsing
function is only an aid and is not a substitute for
yo ur attentiveness.
00BBWhen closing, make sure that no body parts
are in the closing area.
0071
WARNING Risk of becoming trapped
despite there ve rsing function
The reve rsing function does not react:
Rto soft, light and thin objects, e.g. fingers.
Rove rth e last 00C2in (8 mm) of the closing
path.
In these situations in particular, there ve rsing
function cannot pr event someone being trap‐
ped.
00BBWhen closing, make surethat no body
parts are in the closing area.
00BBIf someone is trapped, use one of the
fo llowing options:
RPress the008B button on the
SmartK ey.
RPress there mo teoperating switch
on the driver's door.
RPress the closing or locking button
on the trunk lid.
RPress theto p of thest ar on the
trunk lid.
68 Opening and closing
Page 71 of 498

HANDS-FREEACCESS function
With HANDS-FREE ACCESS you can open or
inter rupt trunk lid mo vement byper form ing a
kicking mo vement under there ar bumper.
Observ eth e no tes when opening (
→page 65)
th e trunk lid.
0071
WARNING Risk of burn s causedbya hot
ex haust sy stem
The vehicle exhaust sy stem can become very
hot. If you use HANDS- FREEACCESS, you
could burn yourself by touching theex haust
sy stem.
00BBAlw ays ensure that you only ma kea
kicking mo vement within the de tection
ra nge of the sensors.
0075 NO
TEDama getotheve hicle caused by
unin tentional lyopening the trunk lid
RWhen using an automatic car wash
RWhen using a high pressure cleaner
00BBDeactivate KEYLESS-GO or make sure
that the SmartK eylocated is at least
10 ft(3 m) away from theve hicle in
such situations.
When making the kicking mo vement, make sure
th at your feet are firm ly on the ground, other‐
wise you could lose your balance, e.g. on ice. Re
quirements:
RThe SmartK eyis behind theve hicle.
RStand at least 12in (30 cm) away from the
ve hicle while per form ing the kicking mo ve‐
ment.
RDo not come into contact with the bumper
while making the kicking mo vement.
RDo not car ryout the kicking mo vement too
slowl y.
RThe kicking mo vement must be towa rdsth e
ve hicle and bac k.
1Sensor detection range
Opening and closing 69
Page 72 of 498

If several consecutive kicking mo vements are
not successful, waitte n seconds.
Sy stem limitations
The sy stem may be impaired or may not function
if:
RSnow or dirt, e.g. from road salt, co vers the
sensor area.
RThe kicking mo vement is made using a pros‐
th etic leg.
The trunk lid could be opened or closed unin ten‐
tional ly, in thefo llowing situations:
RIf a person's arms or legs are moving in the
sensor de tection range, e.g. when polishing
th eve hicle, sitting on the edge of the trunk,
or picking up objects.
RIf objects are mo ved or placed behind the
ve hicle, e.g. tensioning stra ps or luggage
RWhen working on the trailer coupling, trailers
or rear bicycle rack s.
Deactivate KEYLESS-GO (
→page 58) or do not
car rythe SmartK eyabout your person insuch
situations.
Switch ing separate trunk locking on or off
Ifyo u centrally unlo ck theve hicle while separate
locking is activated, the trunk remains loc ked.
00BBTo switch on: slidethe switch toposition
0047.
00BBTo switch off: slidethe switch toposition
0048. 00CE
If an accident has been de tected, the trunk
unloc kseve n if separate lo cking is switched
on.
Un locking the trunk with the emer gency
re lease from inside
Re quirementsRThe 12‑V‑vehicle battery is connected and
ch arge d.
70
Opening and closing
Page 76 of 498

00BBRelease the button if somebody
becomes trapped.
00BBPress and hold the0036 button on the
SmartK ey.
The following functions are per form ed:
RThe vehicle is unloc ked.
RThe side windo wsare opened when the
trunk pa rtition is open.
RThe soft top is opened when the trunk
partition is closed.
RThe seat ventilation of the driver's seat is
switched on.
00BBTo inter rupt convenience opening: release
th e0036 button.
Convenience closing (closing theve hicle
from outside)
0071 WARNING Risk of entrapment caused by
inadver tent con venience closing
When the con venience closing feature is
operating, parts of the body could become
trapped in the closing area of the side win‐
do ws .
00BBObser vethe comple teclosing proce‐
dure when using con venience closing.
00BBWhen closing, make surethat no body
parts are in the closing area.
0071
WARNING Risk of becoming trapped
when opening/closing the soft top .
When opening or closing the soft top, there
is a risk that parts of the body could become
trapped bymoving parts such as thero of
mechanism, the trunk lid, or the side win‐
do ws .
00BBWhen opening or closing, make sure
that no body parts are in the vicinity of
moving components.
00BBRe lease the button if somebody
becomes trapped.
00BBPress and hold the0037 button on the
SmartK ey.
The following functions are per form ed:
RThe vehicle is loc ked.
RThe soft top is closed.
The side windo wsare closed when the
soft top is closed.
00BBTo inter rupt convenience closing: release
th e0037 button.
00CE Con venience closing can also be operated
wi th KEYLESS-GO (
→page 62).
74
Opening and closing
Page 85 of 498

Anti-theft protection
Fu nction of the immobilizer
The immobilizer pr events your vehicle from being
st ar ted without the cor rect SmartK ey.
The immobilizer is automatically activated when
th e ignition is switched off and deactivated when
th e ignition is switched on.
When leaving theve hicle, alw aysta ke the Smart‐
Ke ywit hyo u and lock theve hicle. An yone can
st art the engine if a valid SmartK eyhas been left
inside theve hicle.
00CE Intheeve ntthe engine cannot bestar ted
(y et theve hicle ’sstar ter battery is charge d),
th e sy stem is not operational. Contact an
authorized Mercedes-Benz Center or call
1-800-FO R-MERCedes (in the USA) or
1-800-387-0 100 (in Canada).
ATA (anti-theft alarm system)
Fu nction of theATA system
If th eATA system is armed, a visual and audible
alarm is triggered in thefo llowing situations:
RWhen a door is opened
RWhen the trunk lid is opened
RWhen the hood is opened
The ATA sy stem is armed automatically af ter
appr oximately 10seconds:
RAfter locking theve hicle with the SmartK ey.
RAf ter locking theve hicle using KEYLESS-GO.
Indicator lamp 1flashes when theAT A sy stem
is activated.
The ATA sy stem is automatically deactivated:
RAf ter unlocking theve hicle with the Smart‐
Ke y
RAfter pressing thest art/ stop button with the
SmartK eyinthestow age compartment
(
→page 132)
Openin gan d closing 83
Page 86 of 498
RAfter unlocking theve hicle using KEYLESS-
GO.
00CE When the mbrace service (
→page 283) is
active and the alarm stay s on for more than
30 seconds, a message is automatically sent
to the Cus tomer Assis tance Center.
Deacti vating the ATA
00BBPressthe0036, 0037or008B button on the
SmartK ey.
or
00BBPress thest art/ stop button with the Smart‐
Ke yin thestow age compartment
(
→page 132)
Deactivating the ala rmusing KEYLESS-GO:
00BBGrasp the outside door handle with the
SmartK eyoutside theve hicle.
84
Opening and closing