lock MERCEDES-BENZ A-CLASS HATCHBACK 2018 Service Manual

Electric pa
rking brake Electric parking brake function (app
lying
automatically) &
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If yo u lea vechildren unat tended in theve hi‐
cle, they may be able toset theve hicle in
motion, forex ample by:
R releasing the parking brake.
R shifting the automatic transmission out of
park position jor shifting manual trans‐
mission into idle position.
R starting the engine.
In addition, they may operate vehicle equip‐
ment and become trapped. #
Never lea vechildren and animals unat‐
te nded in theve hicle. #
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. Ve
hicles with manual transmission:
When theve hicle comes toast andstill, the elec‐
tric parking brake is applied if one of thefo llow‐
ing conditions is fulfilled:
R The engine is switched off.
R The driver's door is opened.
The elect ric pa rking brake is also applied while
th eve hicle is kept stationary bythe HOLD func‐
tion if one of thefo llowing conditions is fulfilled:
R The engine is switched off.
R The seat belt tongue is not inser ted in the
seat belt buckle of the driver's seat and the
driver's door is opened.
R There is a sy stem malfunction.
R The po wer supp lyis insuf ficient.
R The vehicle is stationary for a lengt hyperiod.
When the electric parking brake is applied, the
re d! indicator lamp appears in the instru‐
ment clus ter. If
th e electric parking brake is not applied when
th e driver's door is opened, theRisk of vehicle
rolling away Apply parking brake See Owner's
Manual message appears.
The electric parking brake is not automatically
applied if the engine is switched off bythe ECO
st art/ stop function.
% Toprev ent application: pull the handle of the
electric parking brake.
Ve hicles with automatic transmission:
The electric parking brake is applied if the trans‐
mission is in position jand one of thefo llow‐
ing conditions is fulfilled:
R The engine is switched off.
R The seat belt tongue is not inser ted in the
seat belt buckle of the driver's seat and the
driver's door is opened.
% Toprev ent application: pull the handle of the
electric parking brake.
In thefo llowing situations, the electric parking
brake is also applied:
R Active Dis tance Assi stDISTRONIC is bringing
th eve hicle toast andstill. Driving and parking
181

Fu
nction of thera dar senso rs Some driving and driving sa
fety sy stems use
ra dar sensors tomonitor the area in front of,
behind or next totheve hicle (depending on the
ve hicle's equipment).
Depending on theve hicle's equipment, thera dar
sensors are integrated behind the bumpers
and/or behind the Mercedes star. Keep these
parts free of dirt, ice and slush (→ page 432).
The sensors must not be co vered, forex ample
by cycle rack s, ove rhanging loads, sticke rs,fo il
or foils toprotect against stone chipping. In the
eve nt of dama getothe bumpers or radiator
grille, or following a collision impacting the
bumpers or radiator grille, ha vethe function of
th era dar sensors checked at a qualified special‐
ist workshop. The driver assis tance sy stem may
no longer workproper ly. Overview of driving sy
stems and driving
saf ety sy stems In
this section, you will find information about
th efo llowing driving sy stems and driving saf ety
sy stems:
R 360° Camera (→ page 221)
R ABS (Anti-lock Braking System)
(→ page 185)
R Active Dis tance Assi stDISTRONIC
(→ page 200)
R Adaptive brake lights (→ page196)
R Active Brake Assi st (→page 190)
R Active Lane Keeping Assist (→ page240)
R ATTENTION ASSIST (→ page 231)
R BAS (Brak eAssist System) (→ page186)
R Hill Start Assist
R DYNA MIC BODY CONTROL (→ page214)
R EBD ( Electronic Brakeforc eDistribution)
(→ page 190)
R ESP ®
(Electronic Stability Program)
(→ page 186) R
Speed Limit Assist (→ page 233)
R Active Speed Limit Assi st (→page 204)
R HOLD function (→ page212)
R STEER CONTROL (→ page 190)
R Active Steering Assist (→ page 206)
R Speed limiter (→ page197)
R Active Parking Assist (→ page 225)
R Parking Assist PARKTRONIC ( →page 214)
R Reversing camera (→ page218)
R Cruise control (→ page196)
R Function of Blind Spot Assi stand Active Blind
Spot Assi stwith exitwa rning (→ page 237)
R Traf fic Sign Assi st (→page 235) Fu
nction of ABS (Anti-lock Braking Sy stem) ABS
regulates the brake pressure in critical driv‐
ing situations:
R During braking, e.g. at full brake application
or insuf ficient tyre traction, the wheels are
pr eve nted from lo cking.
R Vehicle steerability while braking is ensured. Driving and parking
18 5

If ABS inter
venes when braking, you will feel a
pulsing in the brake pedal. The pulsating brake
pedal can be an indication of hazardous road
conditions and can ser veas a reminder totake
ex tra care while driving.
Sy stem limitations
R ABS is active from speeds of appr ox.
8 km/h.
R ABS may be impai red or may not function if a
malfunction has occur red and theye l‐
low ! ABSwarning lamp lights up contin‐
uously in the instrument clus ter af terthe
engine is star ted. Fu
nction of BAS (Brake Assist Sy stem) &
WARNING Risk of an accident caused by
a malfunction in BAS (Brake Assi stSys‐
te m)
If BA S is malfunctioning, the braking dis tance
in an emergency braking situation is
increased. #
Dep ress the brake pedal with full force
in emer gency braking situations. ABS
pr eve nts the wheels from locking. BA
S suppo rts yo ur eme rgency braking situation
with additional brake forc e.
If yo u depress the brake pedal quickl y,BA S is
acti vated:
R BAS au tomatical lyboosts the brake pres‐
sure.
R BAS can sho rten the braking dis tance.
R ABS pr events the wheels from locking.
The brakes will function as usual once you
re lease the brake pedal. BAS is deactivated. Fu
nctions of ESP ®
(Electronic Stability Pro‐
gr am) &
WARNING Risk of skidding if ESP ®
is
malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot car ry
out vehicle stabilisation. In addition, other
driving saf ety sy stems are switched off. #
Drive on carefull y. #
Have ESP ®
ch ecked at a qualified spe‐
cialist workshop. &
WARNING Risk of skidding if ESP ®
is
deactivated
If yo u deactivate ESP ®
, ESP ®
cannot car ry
out vehicle stabilisation. #
ESP ®
should on lybe deactivated in the
fo llowing situations. 18 6
Driving and pa rking

Assi
stinter venes. The li kelihood of inter vention
is therefore higher.
Setting Active Lane Keeping Assist
Multimedia sy stem:
, © .
Settings .
Assistance .
Act.
Lane Keep. Assist
Setting the sensitivity
% The availability of this function is dependent
on the count ry. #
Select Standard ,Sensitive orOff.
Ac tivating/deactivating the haptic warning #
Select Warning.
Ac tivate or deacti vate the function. Tr
ailer hitch Tr
ailer operation no tesObser
vethefo llowing no tes on theto ngue
we ight:
R do not use a tongue weight that exceeds or
fa lls below the permissible tongue weight R
use a tongue weight as close as possible to
th e maximum tongue weight
Do not exceed thefo llowing values:
R permissible towing capacity
R permissible rear axle load of theto wing vehi‐
cle
R permissible gross mass of theto wing vehicle
R permissible gross mass of the trailer
R maximum permissible speed of the trailer
Ensure thefo llowing before starting a journey:
R the tyre pressure on there ar axle of theto w‐
ing vehicle is set for a maximum load
R the lighting of the connected trailer is opera‐
tional
R vehicles without LED headlamps or MUL‐
TIBEAM LED headlamps: the headlamps
ha ve been set cor rectly
In theeve nt of increased rear axle load, the car/
trailer combination may not exceed a maximum
speed of 100 km/h forre asons concerning the
operating permit. This also applies in countri esin which
the permissible maximum speed for
car/trailer combinations is ab ove100 km/h. Fo
lding the ball neck out/in &
WARNING Risk of accident due tothe
ball neck not being engaged
If th e ball neck is not engaged, the trailer
may come loose. #
Alw ays engage the ball neck as descri‐
bed. &
WARNING Risk of inju ryfrom ball neck
swinging outwards
The ball neck may swing outwards when
unlo cking or when it has not been properly
engaged.
There is a risk of injury within the ball neck's
ra nge of mo vement! #
Unlock the ball neck only when its
ra nge of mo vement is unobstructed. 242
Driving and pa rking

#
Alw ays be sure the ball neck is engaged
when folding in wards. Re
quirements:
R The transmission has been shif tedto posi‐
tion jori.
R The range of mo vement is clear.
R When folding in onl y:trailer cables or
adap ter plugs ha vebeen remo ved. Fo
lding the ball neck out #
Pull release switch 2until the ball neck
unloc ks.
The ball neck folds out from under there ar
bumper.
Indicator lamp 1flashes. #
Pull the ball neck in the direction of the
ar row until it en gage s audibly in a vertical
position.
Indicator lamp 1onthe ball neck release
switch goes out.
If th e ball neck is not securely loc ked in
place, theTrailer coupling Check lock display
message appears on the multifunction dis‐
pla y. Driving and pa
rking 243

#
Open the soc ket cap. #
Inse rtthe plug with lug 1in groo ve3 on
th e soc ket. #
Turn bayonet coupling 2clockwise as far as
it will go. #
Let the cap engage. #
Secure the cable tothe trailer with cable ties
(only if you are using an adap ter cable). #
Make sure that the cable is alw ays slack for
ease of mo vement during cornering.
A display messa gemay appear on the multifunc‐
tion display even if the trailer has been connec‐
te d cor rectly:
R LEDs ha vebeen ins talled in the trailer light‐
ing sy stem
R The cur rent has fallen below the trailer light‐
ing sy stem's minimum cur rent (50 mA).
% Accessories can be connected tothe perma‐
nent po wer supp lyup to180W, and tothe
po we r supp lythat is swit ched on via the igni‐
tion loc k. Un
coupling a trailer &
WARNING Risk of being crushed and
becoming trapped when uncoupling a
trailer
When uncoupling a trailer wi than engaged
ine rtia-activated brake, your hand may
become trapped between theve hicle and the
trailer dr awbar. #
Do not uncouple trailers with an
engaged overrun brake. #
Secu rethe trailer against rolling away. #
Disconnect the electrical connection
between theve hicle and the trailer. #
Uncouple the trailer. #
Place the co ver on the ball head. Bicycle
rackfunction &
WARNING Risk of an accident when
using the bicycle rack incor rectly
The bicycle rack may become de tach ed from
th eve hicle in thefo llowing cases:
R the permissible load capacity of the
trailer hitch is exceeded.
R the bicycle rack is used incor rectl y.
R the bicycle rack is secured tothe ball
neck beneath the ball head.
Obser vethefo llowing foryo ur ow n sa fety
and that of other road users: #
always adhere tothe permissible load
capacity of the trailer hitch. #
only use the bicycle rack totranspo rt
bicycles. #
always proper lysecure the bicycle rack
by attaching it tothe ball head. #
only use bicycle rack s appr ovedby
Mercedes-Benz. Driving and parking
245

#
Toselect the menu item or entr y:swipe
up, down, left or right. #
Press Touch Control 2. #
Toenter a character: enter acharacter
using theke yboard. #
Tomo vethe digital map: swipe in any
direction.
Setting the sensitivity for the Touch Control
Multimedia sy stem:
, © .
Settings .
System .
Con-
trols .
Touch Control sensitivity #
Select Fast,Medium orSlow .
Setting acoustic operating feedba ckfor the
To uch Control
Multimedia sy stem:
, © .
Settings .
System .
Con-
trols
The function is suppor tedby the selection in a
list. #
Select Acoustic operating feedback. #
Set Normal, LoudorOff.
If th e function is activated you will hear a
clicking sound when sc rolling in a list. When
th e beginning or end of the list is reached
yo u will hear ano ther clicking sound. To
uchscreen Operating
theto uchscreen
Ta pping #
Toselect a menu item or entr y:tap on a
symbol or an ent ry. #
Toincrease the map scale: tap twice
qu ickly with one finger. #
Toreduce the map scale: tap with two fin‐
ge rs. #
Toenter characters with th eke ypad: tap
on a button.
Single-finger swipe #
Tonavigate in menus: swipe up, down, left
or right. #
Tomo vethe digital map: swipe in any
direction. #
Touse handwriting toenter characters:
write thech aracter with one finger on the
to uchsc reen.
Tw o-finger swipe #
Tozoom in and out of the map: movetwo
fi ngers toget her or apart. #
Toenlar georreduce the size of a section
of a website: movetwo fingers toget her or
apart. #
Toturn the map: turn anti-clockwise or
clockwise using two fingers.
To uching, holding and moving #
Tomo vethe map: touch theto uchsc reen
and mo veyour finger in any di rection. #
Toset thevo lume on a scale: touch the
to uchsc reen and mo vethefinger tothe left
or right. MBUX multimedia sy
stem 285

Importing/exporting data
* NO
TELoss of da tadue topremature
re mo val #
Do not remo vethe data storage
medium when data is being expor ted.
Mercedes-Benz is not liable for any loss of
data. Re
quirements:
R The vehicle is stationary
R The ignition is swit ched on.
R A USB device is connected.
Multimedia sy stem:
, © .
Settings .
System .
System
backup #
Select Import data orExport data.
Importing #
Select a data storage medium.
A prom ptappears asking whe ther youre ally
wish to overwrite the cur rent da ta. If da ta originates from ano
ther vehicle, this is recog‐
nised du ring da tareading. #
Con firm the prom pt.
The files are impor ted. The multimedia sy stem is
re star ted once the data has been impor ted.
% Current vehicle settings can be edited af ter
th e import.
Exporting
If PIN pr otection is activated, your PIN is reques‐
te d. #
Ente rth efo ur-digit PIN. #
Select a data storage medium.
A prom ptappears asking whe ther youre ally
wish tocar ryout theex port. #
Confirm the prom pt.
The data is expor ted. The data export may
ta ke several minutes.
% After successful export, the data is sa ved in
th e "MyMercedesBac kup" directory which
can be found on thestorage medium. Ac
tivating/deactivating PIN pr otection Re
quirements:
Unb locking forth e PIN:
R There is an Internet connection.
R A Mercedes me account exists at http://
www.me rcedes.me.
R An individual user profile is active
(→ page 291).
Multimedia sy stem:
, © .
Settings .
System .
PIN pro-
tection
Setting the PIN #
Select Set PIN. #
Enter a four-digit PIN. #
Enterth efo ur-digit PIN again.
If bo thPINs match, PIN pr otection is active.
Changing the PIN #
Select Change settings. #
Enterth e cur rent PIN. MBUX multimedia sy
stem 317

#
Select Change PIN. #
Set a new PIN.
Ac tivating PIN pr otection for data export #
Select Protect data export .
Ac tivate or deacti vate the function.
Un blocking the PIN via the Mercedes me por‐
tal
If th e PIN has been entered incor rectly three
times, the PIN will be bloc ked. You can ha ve a
single-use password sent to you via the
Mercedes me connect online por talto reset the
PIN pr otection. #
Select Unblock PIN. #
Ente rth e single-use password.
PIN pr otection is reset, and you can set a
new PIN. Software upda
teInformation on software upda
tes
A software upda teconsi sts of thre esteps:
R Downloading or copying of the data requ ired
fo r ins tallation R
Installation of the update
R Activation of the update byrestarting the
sy stem
The multimedia sy stem pr ovides a message
when an update is available.
Depending on the source, you can per form vari‐
ous updates:
Software updates Source of
the
update Up
date type
Interne tN avigation map, sys‐
te m updates, Digital
Owner's Manual
External storage
medium, e.g. USB
fl ash drive Na
vigation maps %
Installation can take several minutes and
cancellation is not possible. If you do not
ins tallth e software updates then thest atus
of your vehicle will not be up-to-date. During
th e ins tallation, individual functions or con‐ trol elements are not
available or on lyavaila‐
ble toa limited deg ree.
Ad vantages of updating software
Software updates ensure your vehicle's tech nol‐
ogy is al ways up-to-date.
In order toimpr oveth equ ality of our services
yo u will recei vefuture updates foryo ur multime‐
dia sy stem, the Mercedes me connect services
and your vehicle's communication module.
These will con veniently be sent to you via the
mobile phone connection in your vehicle and, in
many cases, ins talled automaticall y.Yo u can
monitor thest atus of your updates at any time
on the Mercedes me por tal and find information
about po tential inno vations.
Yo ur advantages at a glance:
R con veniently recei vesoftware update s via
th e mobile phone network
R impr ovesth equ ality and availability of
Mercedes me connect services
R keeps your multimedia sy stem and communi‐
cation module up-to-date 318
MBUX multimedia sy stem

Moving
the map
Multimedia sy stem:
, © .
Navigation #
On theto uchscreen: movethefinger in any
di re ction when the map is shown. #
On theto uchpad: call upthe navigation
menu bypressing. #
Swipe your finger up.
The crosshair appears on the map. #
Press theto uchpad.
Symbol 1appears. The map can be mo ved. #
Touch theto uchpad and mo veyour finger in
any di rection.
The map mo ves in the opposite direction
under the crosshair.
When the map has been mo vedth efo llowing
information appears in thest atus line, forex am‐
ple:
R Distance 2from theve hicle's cur rent posi‐
tion is shown.
R Information about the cur rent map position
is shown, e.g. the name of thero ad.
The following functions are available:
R Select a destination on the map
(→ page 332).
R Select a POI (→ page 329).
R Show traf fic incidents on the map
(→ page 352). #
Toreset the map tothe cur rent vehicle
position: select3. Ro
tating the map #
With two fingers, rotate anti-clockwise or
clo ckwise on the media display or theto uch‐
pad.
Selecting the map orientation
Multimedia sy stem:
, © .
Naviga-
tion .
Z .
Advanced #
Select View. #
Select Map orientation. #
Select an option.
The #dot indicates the cur rent setting.
The following options are available:
R 2D heading up option:the 2D map view is
aligned tothe direction of tra vel.
R 2D north up option:the 2D map view is
displa yed so that no rth is alw ays at the
to p.
R 3Doption: the 3D map view is aligned to
th e direction of tra vel.
or MBUX multimedia sy
stem 357