2018 MERCEDES-BENZ E-CLASS CABRIOLET key

SmartKey
Overview of SmartK eyfunctions
0071
WARNING Risk of accident and injury
due tochildren left unatte nded inthe
ve hicle
If ch ildren are left unatte nded intheve hicle,
th ey could:
ROpen doo rs,th ereby endangering other
persons or road users.
RGet out of theve hicle and be hit by
oncoming traf fic.
ROpe rate ve hicle equipment and become
trapped, forex ample.
In addition, children could also set theve hi‐
cle in motion, forex ample, by:
RRe leasing the parking brake.
RShifting the automatic transmission out
of park position 005Dor shifting manual
transmission into neutral.
RSt arting the engine
00BBWhen leaving theve hicle, alw aysta ke
th e SmartK eywith you and lock the
ve hicle.
00BBNe ver lea vechildren and animals unat‐
te nded in theve hicle.
00BBKe ep the SmartK eyout of reach of chil‐
dren.
0075 NO
TEDama getotheke ycaused by
magnetic fields
00BBKe ep theke yaw ay from strong mag‐
netic fields.
1Loc ks
2Battery check lamp
3Unloc ks
4Opens/closes the trunk lid
5Pa nic alarm
The Smart Keyloc ksand unlo cksth efo llowing
components:
RThe doors
RThe trunk lid
RThe fuel filler flap
Opening and closing 57

Ifyo udo not open theve hicle within appr ox‐
imately 40 seconds af ter unlocking:
RThe vehicle is loc ked again
RAnti- theft pr otection is reactivated
Do not keep the SmartK eytoge ther with elec‐
tronic devices or me tal objects. This can af fect
th e SmartK ey's functionality.
00CE If battery check lamp 2does not light up
af te r pressing the0036 or0037 button, the
battery is dischar ged.
Changing the SmartK eybattery (
→page 59).
Activating/deactivating the acoustic lo cking
ve rification signal
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00BBAc tivate 0073or deacti vate 0053 the function.
Ac tivating/deactivating the panic alarm
Re quirements
00CE The panic alarm function is only available in
cer tain countries.
RThe ignition is switched off.
00BBTo activate: press button 1for app rox‐
ima tely one second.
A visual and audible alarm is triggered.
00BBTo deactivate: briefly press but ton1 again.
or
00BBPress thest art/ stop button on the dash‐
board (the SmartK eyis inside theve hicle).
Changing the unlocking settings
Po ssible unlocking functions of the SmartK ey:
RCentral unlo cking
RUn locking the driver's door and fuel filler flap
00BBTo switch between settings: pressthe
0036 and0037 buttons simultaneously for
appr oximately six seconds until the battery
ch eck lamp flashes twice.
If th e unlocking function forth e driver's door
and fuel filler flap has been selecte d:
RPressingthe0036 button a second time cen‐
trally unloc kstheve hicle.
RVe hicles with KEYLESS-GO: ifyo uto uch
th e inner sur face of the door handle on the
driver's door, only the driver's door and fuel
fi ller flap are unlo cked.
Re ducing the energy consu mption of the
SmartK ey
Allvehicles: ifyo udo not use theve hicle or a
SmartK eyfor an extended pe riod of time, you
can reduce the energy consum ption of the
58
Opening and closing

respective SmartK ey.To do so, deactivate the
SmartK eyfunctions.
00BBTo deactivate: pressthe0037 button on the
SmartK eytwice in rapid succession.
The battery check lamp of the SmartK ey
fl ashes twice brief lyand lights up once.
00BBTo activate: press any button on the Smart‐
Ke y.
00CE When theve hicle is star ted with the Smart‐
Ke yin thestow age compartment of the cen‐
te r console, the SmartK eyfunctions are
au tomatical lyactivated (
→page 132).
Re moving/inserting the mechanical key
00BBTo remo ve:press release knob 1.
Mechanical key2 is pushed out slight ly.
00BBPull ou tme chanical key2 until it en gage s in
th e intermediate position.
00CE You can use the intermediate position of
mechanical key2 toattach theke yto ake y
ri ng.
00BBPress release knob 1again and fully
re mo vemechanical key2.
00BBTo inser t:press release knob 1.
00BBInsert mechanical key2 tothe intermediate
position or fully until it engages.
Re placing the SmartK eybattery
0071
DANG ER Serious damage tohealth
caused byswallowing batteries
Batteries contain toxic and cor rosive sub‐
st ances. Swallowing batte ries may cause
serious damage tohealth.
There is a risk of fata l injur y.
00BBKeep batteries out of there ach of chil‐
dren.
00BBIf batteries are swallo wed, seek medical
attention immediately.
00D2ENVIRONMEN TALNO TEEnvironmental
damage causedbyimproper disposal of
batteries
Bat teries conta in pollutants. It is
illegal todispose of them with the household
ru bbish.
00BB
Dispose of batteries in an
environmen tally responsible manner.
Ta ke dischar ged batteries toaqu alified
specialist workshop or toa collection
point for used batteries.
Opening and closing 59

Requirements:RYourequ ire a CR 2032 3 V cell batter y.
Mercedes-Benz recommends that you ha vethe
battery replaced at a qualified specialist work‐
shop.
00BBRe mo vethe emer gency key (→pag e59).
00BBPress release button 2down fully and slide
co ver1 inthe direction of the ar row.
00BBFold out co ver1 inthe direction of the
ar row and remo ve.
00BBRe mo vebattery compartment 3and take
out the dischar ged batter y.
00BBInsertthe new battery into battery compart‐
ment 3. Obser vethe positive pole marking
in the battery compartment and on the bat‐
te ry.
00BBPush in battery compartment 3.
00BBRe-attach co ver1 and push it until it
engages.
Problems with the SmartK ey
Problem
Possible causes/consequences and 0050Solutions
Yo u can no longe r lock or unlock the
ve hicle. Po
ssible causes are:
RThe SmartK eybattery is dischar ged or nearly dischar ged.
RThere is inter fere nce from a po werful radio signal source.
60
Opening and closing

ProblemPossible causes/consequences and 0050Solutions
RThe SmartKeyis defective.
00BBCheck the battery using the battery check lamp and replace if necessar y.
00BBUsethe mechanical keyto lock or unloc k.
00BBHave the SmartK eychecked at a qualified specialist workshop.
Yo u ha velost a SmartK ey.
00BBHa ve the SmartK eydeactivated at a qualified specialist workshop.
00BBIf necessar y,ha ve the loc kschanged as well.
Opening and closing 61

Doors
Unlocking and opening doors from the inside
00BBPull door handle 2.
Locking pin 1pops up when the door is
unloc ked.
Centrally locking and unlocking theve hicle
from the inside
00BBTo unlock :press button 1.
00BBTolock: press button 2.
This does not lock or unlock the fuel filler flap. The
vehicle is not unloc ked:
RIfyo u ha veloc kedth eve hicle using the
SmartK ey.
RIfyo u ha veloc kedth eve hicle using KEY‐
LESS-GO.
Locking/unlocking theve hicle with KEY‐
LESS-GO
Requ irements:RThe SmartK eyis outside theve hicle.
RThe dis tance between the SmartK eyand the
ve hicle does not exceed 3 ft(1 m).
RThe driver's door and the door at which the
door handle is used are closed.
62 Opening and closing

00BBTounlock theve hicle: touch the inner sur‐
fa ce of the door handle.
00BBTo lock theve hicle: touch sensor sur face
1 or2.
00BBCo nvenience closing: touch recessed sen‐
sor surf ace2for an extended pe riod.
00CE Further information on con venience closing
(
→pa ge 74).
If yo u open the trunk lid from outside it is auto‐
matically unloc ked.
Problems with KEYLESS-GO
Problem
Possible causes/consequences and 0050Solutions
Yo u can no longe r lock or unlock the
ve hicle using KEYLESS-GO. Po
ssible causes are:
RKEYLESS-GO has been deactivated .
RThe SmartK eybattery is dischar ged or near lydischar ged.
RThere is inter fere nce from a po werful radio signal source.
Opening and closing 63

ProblemPossible causes/consequences and 0050Solutions
RThe SmartKeyis defective.
00BBActivate KEYLESS-GO .
00BBCheck the battery using the battery check lamp and replace if necessary .
00BBUse the mechanical keyto lock or unlock theve hicle .
00BBHa ve theve hicle and SmartK eychecked at a qualified specialist workshop.
Ac tivating/deactivating the automatic lo ck‐
ing feature
The vehicle is loc ked automatically when the
ignition is switched on and the wheels are turn‐
ing fast erthan walking pace.
00BBTo activate: press and hold button 2for
appr oximately five seconds until an acoustic
signal sounds.
00BBTo deactivate: press and hold button 1for
appr oximately five seconds until an acoustic
signal sounds.
There is a danger of being loc ked out if the func‐
tion is activated:
RWhile theve hicle is being tow star ted/
pushed.
ROn a roller dynamome ter.
64
Opening and closing