key battery MERCEDES-BENZ E-CLASS WAGON 2018 Owner's Manual

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:
,9HKLFOH.î 9HKLFOH 6HW
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

Beforestarting, make sure:
RThe legal stipulations in the area where your
ve hicle is par ked permit engine starting via
smartphone.
RIt is safe tostart and runth e engine where
yo ur vehicle is par ked.
RThe fuel tank is suff icientlyfilled.
RThe star ter battery has suf ficient charge .
St arting theve hicle using a smartphone
&
WARNING Risk of crushing or entrap‐
ment due tounin tentional starting of the
engine
Limbs could be crushed or trapped if the
engine is star ted unintentionally during
service or maintenance work.
#Alw ays secure the engine against unin‐
te ntional starting before car rying out
maintenance or repair work.
Re quirements:RPark position jis selected.
RThe anti- theft alarm sy stem is not armed.
RThe panic alarm is not armed.
RThe hazard warning lights are switched off.
RThe engine hood is closed.
RThe doors are closed and loc ked.
RThe windo wsand sliding sunro of are closed.
#Start theve hicle using the smartphone:RAf tereve ryvehicle start, the engine runs for
te n minu tes.
RYo u can car ryout a maximum of two consec‐
utive starting attem pts.
RYo u can stop theve hicle again at any time.
RFu rther information can be found in the
smartphone app.
Securing the engine against starting before
car rying out maintenance or repair work:
#Switch on the hazard warning lights.
or
#Un lock the doors.
or
#Open a side window or the sliding sunroof. St
arting theve hicle in emer gency operation
mode
If th eve hicle cannot be star ted, the3ODFH WKH
.H\ LQ WKH 0DUNHG 6SDFH 6HH 2SHUDWRU
V 0DQ
XDOdisplay message appears in the multifunction
displa y.
#Make sure that mar ked space 2is em pty.
#Re mo veSmartK ey1 from thering.
#Place Smart Key1 in mar ked space 2.
The vehicle will start af ter a short while.
If yo ure mo veSmartK ey1 from mar ked
space 2the engine continues running. For
fur ther vehicle starts ho wever,SmartK ey1
Driving and pa rking 14
5

Automatic engine stop (ECO start/
sto p function) .......................................... 149
Au tomatic front passen ger air bag
shu toff
see Front passenger air bag shutoff
Au tomatic lateral support adjustment
Setting ................................................... 90
Au tomatic mir rorfo lding function
Swit ching on/off ................................ .135
Au tomatic transmission
DIRECT SELECT le ver ........................... 151
Drive program display .......................... 151
Drive programs .................................... 150
DY NA MIC SELECT switch .................... 150
Engaging drive position ....................... 153
Engaging reve rsege ar ........................ .152
Kickdown ............................................. 154
Manual gear shifting ............................ 153
Selecting pa rkposition ........................ 153
Shifting toneutral ................................ 152
St eering wheel gearshift paddles ........ 153
Tr ansmission position display .............. 151
Tr ansmission positions ........................ .151B
Bag hook ................................................... 111
BA S (Brake Assist Sy stem) .................... .167
Battery Key........................................................ 58
Batter y(vehicle)
Chargin g.............................................. 34 8
Jump- starting ...................................... 348
No tes .................................................. 346
Belt see Seat belts
Blind Spot Assist .....................................2 08
Ac tivating/deactivating .......................2 10
Fu nction .............................................. 208
Sy stem limitations .............................. .208
Blo wer
see Climate control
Blue tooth
®
Ac tivating/deactivating .......................2 49
Setting up an Internet connection ....... 298
Settings ............................................... 248
Switching profile (DUN/PAN) .............. 299 Blue
tooth
®audio
Ac tivating .............................................3 16
De-authorizing (de-regis tering) the
device .................................................. 316
Information .......................................... 313
Overview ..............................................3 14
Searc hingfor a track ........................... 316
Searc hingfor and au thorizing the
device ...................... .....
.......................
315
Selecting a music pl ayer ..................... .316
Switching device via NFC ..................... 316
Brake Assist System
see BAS (Brake Assist System)
Brake fluid
No tes ................................................... 397
Brake forc e distribution
EBD (electronic brake forc e distribu‐
tion) ..................................................... 170
Brakes ABS (Anti-lock Braking Sy stem) ........... 166
BA S (Brake Assist System) .................. .167
Driving tips .......................................... 146
EBD (electronic brake forc e distribu‐
tion) ..................................................... 170
Index 47
1