airbag MERCEDES-BENZ A-CLASS HATCHBACK 2018 Owner's Manual

Seats
Ad
justing the front seat mechanically (with‐
out Seat Comfort Package) &
WARNING Risk of becoming trapped if
th e seats are adjus tedby children
Children could become trapped if they adjust
th e seats, particularly when unattended. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle.
This also applies tothe digital vehicle
ke y if the "Digital Vehicle Key" function
is activated via Mercedes me connect. #
Never lea vechildren unat tended in the
ve hicle. &
WARNING Risk of becoming trapped
when adjusting the seats
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the
seat guide rail. #
When adjusting a seat, make sure that
no one has any body parts in the sweep
of the seat. Obser
vethe saf ety no tes on "Airbags" and "Chil‐
dren in theve hicle". &
WARNING Risk of accident due tothe
driver's seat not being engaged
If th e driver's seat is not engaged, it could
mo veunexpectedly while theve hicle is in
motion.
This could cause youto lose control of the
ve hicle. #
Alw ays make sure that the driver's seat
is engaged before starting theve hicle. &
WARNING Risk of inju rythro ugh adjust‐
ing vehicle settings while theve hicle is in
motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations:
R ifyo u adjust the driver's seat, the head
re stra ints, thesteering wheel or the mir‐
ro r while theve hicle is in motion
R ifyo ufast enyour seat belt while theve hi‐
cle is in motion #
Before starting the engine: adjust the
driver's seat, the head restra ints, the
st eering wheel or the mir ror and fasten
yo ur seat belt. &
WARNING Risk of becoming trapped if
th e seat height is adjus ted carelessly
If yo u adjust the seat height carelessly, you
or other vehicle occupants could be trapped
and thereby injured. Seats and
stowing 89

Ac
tivating/deactivating the hazard warning
lights #
Press button 1.
The hazard warning lights will switch on auto‐
matically if:
R the airbag has been deplo yed.
R theve hicle is heavily braked from a speed of
more than 70 km/h toast andstill. When
you pull away again, the hazard warning
lights will switch off automatically at appr ox‐
imately 10km/h. You can also swit choff the
hazard warning lights using button 1. Ad
aptive functions, MULTIBEAM LED Fu
nctions of the Intelligent Light Sy stem
The MULTIBEAM LED headlamps adapt tothe
driving and weather situation and pr ovide exten‐
ded functions for impr oved illumination of the
ro ad.
The sy stem comprises thefo llowing functions:
R Active headla mps (→ page 125)
R Cornering light (→ page126)
R Motorw ay mode (→ page126)
R City lighting (→ page126)
Sy stem limitations
R The sy stem is active only when it is dar k.Ac
tive headlamps function R
The headlamps follow thesteering mo ve‐
ments.
R Releva nt areas are better illumina ted during
tra vel.
The functions are active when the high beam is
switched on. Light and sight
12 5

accident site in places
that are dif ficult to
access.
The emer gency call can be made au tomatical ly
( → page 393) or manually (→ page 394). Only
make emer gency calls if you or others are in
need of rescue. Do not make an emer gency call
in theev ent of a breakdown or a similar situa‐
tion.
Yo u can find more information on there gional
av ailability of the Mercedes-Benz emer gency call
sy stem at: http://www.mercedes-benz.com/
connect_ecall.
Message in the media displa y:
The following messages appear in the media dis‐
play:
R SOS NOT READY :th e ignition is not on or
th ere is a malfunction with the emer gency
call sy stem (→ page 282). This does not nec‐
essarily indicate comple tefailure of the
emer gency call sy stem. Emer gency calls call
st ill be transmitted.
The display only refers to theve hicle and
does not take account of theav ailability of mobile phone networ
ksand the Mercedes-
Benz emer gency call centre.
The functional readiness of the emer gency
call sy stem on theve hicle can be seen when
th eSOS NOT READY display disappears once
th e ignition is switched on.
R G: The icon appears in the display during
an active emer gency call.
% Ifth ere is a malfunction in the Mercedes-
Benz emer gency call sy stem (e.g. a fault with
th e speaker, microphone, airbag, SOS but‐
to n), a cor responding message appears in
th e multifunction display of the instrument
clus ter.
Tr iggering an automatic Mercedes-Benz
emer gency call
Re quirements:
R The ignition is switched on.
R The star ter battery is suf ficiently charge d. The Mercedes-Benz emer
gency call sy stem trig‐
ge rs an emer gency call au tomatical lyin thefo l‐
lowing cases:
R After activation of there stra int sy stems such
as airbags or seat belt tensioners af ter an
accident.
R After an auto maticallyinitiated emer gency
st op byActive Emergency Stop Assist.
The emer gency call has been made:
R Avo ice connection is made tothe Mercedes-
Benz emer gency call centre.
R A messa gewith accident data is transmitted
to the Mercedes-Benz emer gency call centre.
The Mercedes-Benz emergency call centre
can transmit theve hicle position data toone
of the public emer gency services call cen‐
tres.
R Under cer tain circums tances da tais also
transmitte d inthevo ice channel tothe
Mercedes-Benz emer gency call centre.
This allo wsmeasu resfo rre scue, reco very or
to wing toa Mercedes-Benz Service Cent reto
be initiated quickl y. MBUX multimedia sy
stem 393

Note
s on care of the interior &
WARNING Risk of inju ryfrom pla stic
parts breaking off af terth e use of sol‐
ve nt-based care products
Ca reand cleaning products con taining sol‐
ve nts can cause su rfaces in the cockpit to
become porous. When
the airbags are deplo yed, plastic parts
may break away. #
Do not use any care or cleaning prod‐
ucts containing sol vents toclean the
cockpit. &
WARNING Risk of inju ryor death from
bleached seat belts
Bleaching or dyeing seat belts can se verely
we aken them.
This can, forex ample, cause seat belts to
te ar or fail in an accident. #
Never blea chor dye seat belts. Obser
vethefo llowing information: Cleaning and car
eA voiding vehicle damage
Seat belts Clean with lukewarmand soapy water. R
Do not use chemical cleaning agents.
R Do not dry seat belts byheating them toove r 80 °C or
ex posing them todirect sunlight.
Display Cleanthe sur face carefully wi tha mic rofibre clo thand a suit‐
able display care product (TFT LCD). R
Switch off the display and let it cool down.
R Do not use any other cleaning products.
Plastic trim R
Clean with a damp microfibre clo th.
R For heavy soiling: use care product recommended for
Mercedes-Benz. R
Do not attach sticke rs,fi lms or similar materials.
R Do not allow cosmetics, insect repellent or sun cream to
come in contact wi th the plastic trim. 434
Maintenance and care

Display messages
Possible causes/consequences and M
MSolutions
Restraint sys. malfunction
Consult workshop &
WARNING Risk of inju ryor fata l injury due toa malfunction in there stra int sy stem
If th ere stra int sy stem is malfunctioning, restra int sy stem components may be triggered unintentionally or
might not be triggered at all in theeve nt of an accident. This may af fect the seat belt tensioner or airbag, for
ex ample. #
Have there stra int sy stem checked and repaired immediately at a qualified specialist workshop. De
tection of a restra int sy stem fault:
R there stra int sy stem warning lamp 6does not light up when the ignition is switched on.
R there stra int sy stem warning lamp 6lights up continuously or repeatedly during a journe y. #
Consult a qualified specialist workshop immediatel y.
6
Front left malfunction Con-
sult workshop (Example) *T
he cor responding restra int sy stem is malfunctioning (→ page31). &
WARNING Risk of inju ryor fata l injury due toa malfunction in there stra int sy stem
If th ere stra int sy stem is malfunctioning, restra int sy stem components may be triggered unintentionally or
might not be triggered at all in theev ent of an accident. This may af fect the seat belt tensioner or airbag, for
ex ample. #
Have there stra int sy stem checked and repaired immediately at a qualified specialist workshop. De
tection of a restra int sy stem malfunction:
R there stra int sy stem warning lamp 6does not light up when the ignition is switched on.
R there stra int sy stem warning lamp 6lights up continuously or repeatedly during a journe y.508
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions #
Consult a qualified specialist workshop immediatel y.
6
Left windowbag malfunc-
tion Consult work-
shop (Example) *T
he cor responding windowbag is malfunctioning (→ page31). &
WARNING Risk of inju ryor fata l injury due toa malfunction in the window airbag
The window airbag might be triggered unintentionally or might not be triggered at all in theeve nt of an accident
wi th high deceleration. #
Have the window airbag checked and repaired immediately at a qualified specialist workshop. #
Consult a qualified specialist workshop immediatel y.
Front-passenger airbag
enabled See Owner's Man-
ual *T
he front passenger airbag is enabled while theve hicle is in motion:
R even when a child, a small adult or an object weighing less than the sy stem weight thre shold is located on the
front passenger seat
R even when the front passenger seat is not occupied
The sy stem may de tect objects or forc es that are adding tothewe ight applied tothe seat. &
WARNING Risk of inju ryor fata l injury when using a child restra int sy stem while the front passenger airbag
is enabled
If yo u secure a child in a child restra int sy stem on the front passenger seat and the front passenger airbag is
enabled, the front passenger airbag can deploy in theev ent of an accident.
The child could be stru ck bythe airbag. Display messages and
warning/indicator lamps 509

Display messages
Possible causes/consequences and M
MSolutions #
Ensure, bo thbefore and during the journe y,that thest atus of the front passenger airbag is cor rect.
NEVER use a rear wa rdfacing child restra int on a seat pr otected byan ACTIVE FRONT AIRB AGin front of it;
DE ATH or SERIOUS INJU RYtotheCH ILD can occur. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. #
Check thest atus of the automatic front passenger airbag shutoff (→ page41). #
If necessar y,consult a qualified specialist workshop immediatel y.
Front-passenger airbag dis-
abled See Owner's Manual *T
he front passenger airbag has been deactivated although an adult or a person with an adult stature is on the front
passenger seat. If additional forc es are applied tothe seat, thewe ight the sy stem de tects may be too lo w. &
WARNING ‑ Risk of inju ryor eve nfa ta l injury when the front passenger airbag is disabled
If th e front passenger airbag is disabled, It will not be deplo yed in theeve nt of an accident and cannot pe rform
its intended pr otective function.
A person in the front passenger seat could then, forex ample, come into con tact wi th theve hicle interior, espe‐
cially if the person is sitting too close tothe dashboard. #
Beaware of thest atus of the front passenger airbag bo thbefore and during the journe y. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. #
Check thest atus of the automatic front passenger airbag shutoff (→ page41). #
If necessar y,consult a qualified specialist workshop immediatel y.51 0
Displaymessa ges and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
å ESP ®
OFF warning lamp The
yellow ESP ®
OFF warning lamp is lit while the engine is running.
ESP ®
is deacti vated. &
WARNING Risk of skidding when driving wi thESP ®
deacti vated
If ESP ®
is deactivated, ESP ®
cannot car ryout vehicle stabilisation. The availability of fur ther driving saf ety sy stems
is also limited. #
Drive on carefull y. #
Only deactivate ESP ®
for as long as the situation requ ires.
If ESP ®
cannot be activated, ESP ®
is malfunctioning. #
Have ESP ®
ch ecked immediately at a qualified specialist workshop. #
Obser vethe no tes on deactivating ESP ®
(→ page 186).
6 Re stra int sy stem warning
lamp The
redre stra int sy stem warning lamp is lit while the engine is running.
The restra int sy stem is faulty (→ page 30). &
WARNING Risk of inju ryor fata l injury due toa malfunction in there stra int sy stem
If th ere stra int sy stem is malfunctioning, restra int sy stem components may be triggered unintentionally or might not
be triggered at all in theeve nt of an accident. This may af fect the seat belt tensioner or airbag, forex ample. #
Have there stra int sy stem checked and repaired immediately at a qualified specialist workshop. Display messages and
warning/indicator lamps 553

Ad
vanced sound sy stem
Ac tivating/deactivating au tomatic
vo lume adjustment .............................. 41 8
Ad justing the balance/fader ................4 18
Ad justing treble, mid-range and bass
settings ................................................ 41 8
Calling up the sound menu .................. 417
Information .......................................... 417
Af ter-sales service centre
see ASS YST PLUS
Air conditioning menu Calling up ............................................ 14 3
Air conditioning sy stem
see Climate control
Air distribution Setting ................................................ .141
Setting (multimedia sy stem) ................1 43
Air inl et
see Air-water duct
Air pressure see Tyre pressure
Air vents ................................................... 14 9
Ad justing (front) .................................. 14 9Ad
justing (rear) .................................... 15 0
Air vents
see Air vents
Ai r-re circulation mode ............................ 14 4
Air-water duct .......................................... 427
Ke eping free ........................................4 27
Airbag ........................................................ .37
Ac tivation .............................................. 31
Fr ont airbag (driver, front passenger) ....37
Ins tallation locations ............................ .37
Knee airbag ........................................... 37
Overview ............................................... 37
PA SSENGER AIR BAG indicator lamp .... .41
Pr otection ..............................................38
Re duced pr otection ...............................39
Side impact airbag ................................. 37
Wi ndow airbag ....................................... 37
Airflow Setting ................................................ .141
Alarm see Panic alarm
Alarm sy stem
see ATA (anti-theft alarm sy stem) Alternative
route
see Route
Ambiance light Setting (mutlimedia sy stem) ................1 30
Android Auto ............................................ 386
Connecting a mobile phone ................. 386
Ending ................................................. 387
Information .......................................... 386
Overview ............................................. 386
Sound settings .................................... 387
Tr ans ferred vehicle data ......................3 87
Animals Pets in theve hicle ................................. 63
Answering e-mails see In Car Of fice
Anti-lock braking sy stem
see ABS (Anti-lock Braking Sy stem)
Anti-skid chains
see Snow chains
Anti-theft ala rmsystem
see ATA (anti-theft alarm sy stem)
Anti-theft pr otection
Ad ditional door lock .............................. 69 Index
563

Immobiliser ...........................................85
Anti-theft pr otection
see ATA (anti-theft alarm sy stem)
Anticipatory occupant pr otection
see PRE- SAFE®
(anticipatory occu‐
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
Apple CarPlay™ ....................................... 384
Connecting an iPhone ®
....................... 385
Ending .................................................3 86
No tes .................................................. 385
Overview ............................................. 384
Sound settings .................................... 386
Tr ans ferred vehicle data ......................3 87
Asht ray
Using ....................................................1 14
Assistance sy stems
see Driving saf ety sy stem
Assistant display Menu (on-board computer) .................. 254
ASS YST PLUS ............................................ 419
Battery disconnection periods ............. 420 Displaying
the service due date ........... 419
Fu nction/no tes .................................... 419
Re gular maintenance work .................. 419
Special service requ irements .............. .419
ATA (anti-theft ala rmsystem) .................. 85
Deactivating the alarm .......................... 85
Fu nction ................................................ 85
Fu nction of interior pr otection ............... 86
Priming/deactivating interior pr otec‐
tion ........................................................ 87
Priming/deactivating tow- aw ay pro‐
te ction ................................................... 86
To w- aw ay protection function ................86
AT TENTION ASSI ST.......................... 231, 233
Fu nction .............................................. 231
Setting ................................................. 233
Sy stem limitations ...............................2 31
At tention assistant
see ATTENTION ASSIST
Au thorised workshop
see Qualified specialist workshop
Au tomatic distance control
see Active Dis tance Assi stDISTRONIC
Au tomatic driving lights .........................12 3Au
tomatic engine start (ECO start/
sto p function) .......................................... 15 8
Au tomatic engine stop (ECO start/
sto p function) .......................................... 15 8
Au tomatic front passen ger front air‐
bag deacti vation sy stem
see Automatic front passenger front
airbag shutoff
Au tomatic front passen ger front air‐
bag shu toff ........................................... 40, 41
Fu nction of the automatic front
passenger front airbag deactivation
sy stem ................................................... 40
PA SSENGER AIR BAG indicator lamp .... .41
Au tomatic mir rorfo lding function
Ac tivating/deactivating ...................... .140
Au tomatic seat adjustment
Setting ................................................... 94
Au tomatic transmission
DIRECT SELECT le ver ........................... 16 4
Drive prog ram display ......................... .161
Drive prog rams ................................... .160
DY NA MIC SELECT switch .................... 16 0
Engaging drive position ....................... 16 6564
Index