2018 MERCEDES-BENZ E-CLASS WAGON key battery

SmartKey
Overview of SmartK eyfunctions
&
WARNING ‑ Danger of accident or injury
if ch ildren are left unatte nded intheve hi‐
cle
If ch ildren are left unatte nded intheve hicle,
th ey could:
Ropen doo rs,th ereby endangering other
persons or road users.
Rge t out of theve hicle and be hit by
oncoming traf fic.
Rope rate ve hicle equipment.
Moreo ver,ch ildren could also set theve hicle
in motion by,fo rex ample:
Rreleasing the parking brake.
Rshifting the automatic transmission out of
park position P jor shifting manual
transmission into idle position.
Rst arting the engine.
#Ne ver lea vechildren and animals unat‐
te nded in theve hicle.
#When leaving theve hicle, alw aysta ke
th eke ywit hyo u and lock theve hicle.
#Ke ep theve hicle keyout of there ach of
ch ildren.
* NO
TEDama getotheke ycaused by
magnetic fields
#Ke ep theke yaw ay from strong mag‐
netic fields.1Loc ks
2Battery check lamp
3Unloc ks
4Opens/closes theta ilgate
5Pa nic alarm
The Smart Keyloc ksand unlo cksth efo llowing
components:
RThe doors
RThe tailgate
RThe fuel filler flap
56
Opening and closing

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 eytoget her with elec‐
tronic devices or me tal objects. This can af fect
th e SmartK ey's functionality.
% If battery check lamp 2does not light up
af te r pressing the% or& button, the
battery is dischar ged.
Re placing the SmartK eybattery (
→page 58).
Activating/deactivating the acoustic lo cking
ve rification signal
Multimedia sy stem:
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WLQJV.$FRXVWLF /RFN
#Ac tivate Oor deacti vate ª the function.
Ac tivating/deactivating the panic alarm
Re quirement:RIgnition is switched off.
#To activate: press button 1for app rox‐
ima tely one second.
A visual and audible alarm is triggered.
#To deactivate: briefly press but ton1 again.
or
#Press thest art/ stop button on the cockpit
(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
#To switch between settings: pressthe
% and& 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:
RPressingthe% 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
Ifyo u do not use theve hicle or a SmartK ey for
an extended pe riod of time, you can reduce the
energy consum ption of there spective SmartK ey.
Opening and closing 57

Deactivatethe KEYLESS-GO function of the
SmartK ey.
#To deactivate: pressthe& button on the
SmartK eytwice in rapid succession.
The battery check lamp of the SmartK ey
fl ashes twice brief lyand lights up once.
#To activate: press any button on the Smart‐
Ke y.
% When theve hicle is star ted with the Smart‐
Ke yin thestow age compartment of the cen‐
te r console (
→page 145),th e SmartK ey
functions are au tomatically activated.
Inserting/re moving the mechanical key
#To remo ve:press release knob 1.
Mechanical key2 is pushed out slight ly.
#Pull ou tme chanical key2 until it en gage s in
th e intermediate position.
% You can use the intermediate position of
mechanical key2 toattach the SmartK ey
to ake yring.
#Press release knob 1again and fully
re mo vemechanical key2.
#To inser t:press release knob 1.
#Insert mechanical key2 tothe intermediate
position or fully until it engages.
Re placing the SmartK eybattery
&
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.
#Keep batteries out of there ach of chil‐
dren.
#If batteries are swallo wed, seek medical
attention immediately.
+ENVIRONMEN TALNO TEEnvironmental
damage causedbyimproper disposal of
batteries
Bat teries conta in pollutants. It is
illegal todispose of them with the household
ru bbish.
#
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.
58
Opening and closing

Requirement: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.
#Re mo vethe mechanical key (→pag e58) .
#Press release button 2down fully and
re mo vecover1.
#Re mo vebattery compartment 3and take
out the dischar ged batter y.
#Insertthe new battery into battery compart‐
ment 3. Obser vethe positive pole marking
in the battery compartment and on the bat‐
te ry.
#Push in battery compartment 3.
#Replace co ver1 sothat it engages.
Problems with the SmartK ey
Problem
Possible causes/consequences and MSolutions
Yo u can no longe r lock or unlock the
ve hicle. Po
ssible causes:
RThe SmartK eybattery is dischar ged or nearly dischar ged.
RThere is inter fere nce from a po werful radio signal source.
Opening and closing 59

ProblemPossible causes/consequences and MSolutions
RThe SmartKeyis defective.
#Check the battery using the battery check lamp and replace if necessary .
#Use the mechanical keyto lock or unlock theve hicle .
#Ha ve the SmartK eychecked at a qualified specialist workshop.
Yo u ha velost a SmartK ey.
#Ha ve the SmartK eydeactivated at a qualified specialist workshop.
#If necessar y,ha ve the loc kschanged as well.
60
Opening and closing

#Tounlock theve hicle: touch the inner sur‐
fa ce of the door handle.
#To lock theve hicle: touch sensor sur face
1 or2.
#Co nvenience closing: touch recessed sen‐
sor surf ace2for an extended pe riod.
% For fur ther information on con venience clos‐
ing (
→pa ge 73).
If yo u open theta ilgate from outside it is auto‐
matically unloc ked.
Problems with KEYLESS-GO
Problem
Possible causes/consequences and MSolutions
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.
62
Opening and closing

ProblemPossible causes/consequences and MSolutions
RThe SmartKeyis malfunctioning.
#Activate KEYLESS-GO .
#Check the battery using the battery check lamp and replace if necessary .
#Use the mechanical keyto lock or unlock theve hicle .
#Ha ve theve hicle and SmartK eychecked at a qualified specialist workshop.
Switching the automatic locking feature
on/off
The vehicle is loc ked automatically when the
ignition is switched on and the wheels are turn‐
ing fast erthan walking pace.
#To deactivate: press and hold button 1for
appr oximately five seconds until an acoustic
signal sounds.
#To activate: press and hold button 2for
appr oximately five seconds until an acoustic
signal sounds.
Danger of being loc ked out when the function is
activated:
RIf th eve hicle is being tow star ted/pushed.
ROn a roller dynamome ter.
Opening and closing 63

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.
% Ifth eeve ntthat the engine cannot bestar‐
te d (y ettheve hicle's battery is charge d), the
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 (anti-theft ala rm
sy stem)
If th eATA system is armed, a visual and audible
alarm is triggered in thefo llowing situations:
RA door is opened.
RThe tailgate is opened.
RThe hood is opened.
The ATA system is armed automatically af ter
appr oximately 10seconds:
RAfter locking theve hicle with the SmartK ey.
RAf ter locking theve hicle using KEYLESS-GO.
When theATA system is armed, indicator lamp
1 flashes.
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 eyinside theve hicle.
80
Opening and closing