lock MERCEDES-BENZ A-CLASS HATCHBACK 2018 User Guide

Re
quirements:
R Yourequ ire a CR 2032 3 V cell batter y.
Mercedes-Benz recommends that you ha vethe
battery replaced at a qualified specialist work‐
shop. #
Remo vethe emer gency key ( → page 67). #
Press release button 2down fully and slide
co ver1 inthe direction of the ar row. #
Fold out co ver1 inthe direction of the
ar row and remo ve. #
Remo vebattery compartment 3and take
out the dischar ged batter y. #
Insert the new battery into battery compart‐
ment 3. Obser vethe positive pole marking
in the battery compartment and on the bat‐
te ry when doing this. #
Push in battery compartment 3. #
Re-attach co ver1 and push it until it
engages. Problems with
thekey Problem
Possible causes/consequences and M
MSolutions
Yo u can no lon ger lock or unlock the
ve hicle. Po
ssible causes:
R The key bat tery iswe ak or dischar ged.
R There is inter fere nce from a po werful radio signal source. 68
Opening and closing

Problem
Possible causes/consequences and M
MSolutions
R The key is faulty. #
Check the battery using the battery check lamp and replace if necessary (→ page67). #
Use the emer gency keyto lock or unlock (→ page67). #
Have theke ych ecked at a qualified specialist workshop.
Yo u ha velost a key. #
Have theke y deacti vated at a qualified specialist workshop. #
If necessar y,ha ve the mechanical lock changed as well. Doors
Note
s onthe additional door lock The additional door lock is only
available for
ve hicles forth eUni ted Kingdom. &
WARNING Risk of inju ryto persons
inside theve hicle when the additional
door lock is activated
If th e additional door lock is activated, the
doors can no longer be opened from the
inside. If
th ere are persons in theve hicle, they can
no longer le aveth eve hicle, e.g. in hazardous
situations. #
Never lea vepersons unattended in the
ve hicle, particularly children, elderly
persons or persons in need of help. #
Ifth ere are persons in theve hicle, do
not activate the additional door loc k. The additional door lock is automatically activa‐
te d in thefo llowing situations:
R The vehicle is loc ked using thekey.
R The vehicle is loc ked using KEYLESS-GO. If
th eve hicle has been loc ked via Mercedes me
connect, the additional door lock is not activa‐
te d.
If th e additional door lock is activated, the doors
cann otbe opened from the inside.
% After locking you can issue a signal with the
horn.
Yo u can pr eventthe additional door lock from
being activated bydeactivating interior pr otec‐
tion before locking theve hicle (→ page87). Opening
and closing 69

Un
locking/opening the doors from the inside #
United Kingdom onl y:obser vethe no tes on
th e additional door lock (→ page 69).#
Pull door handle 1. Centrally locking and unlocking
theve hicle
from the inside #
Tounlo ck:press button 1. #
Tolock: press button 2.
The indicator lamp lights up.
This does not lock or unlock the fuel filler flap. The
vehicle is not unloc ked:
R Ifyo u ha veloc kedth eve hicle using thekey.
R Ifyo u ha veloc kedth eve hicle using KEY‐
LESS-GO. Locking/unlocking
theve hicle with a Digital
Ve hicle Key Re
quirements:
R one of thefo llowing versions of the Digital
Ve hicle Key is available:
- suitable mobile phone
- Digital Vehicle Keyst icker
R theve hicle is equipped with the "Digital Vehi‐
cle Key" function.
R the "Digital Vehicle Key" function is activated
via Mercedes me connec t:http://
www.mercedes.me.
R The mobile phone must be suf ficiently
ch arge d.
% You can check the suitability of your mobile
phone byentering the phone number at
http://www.mercedes.me. 70
Opening and closing

Information about suitable mobile phones
can be obtained from your Mercedes-Benz
service centre or at http://www.mercedes-
benz.com/connect.
% Mercedes-Benz recommends that you car ry
th e emer gency key in case of function
re strictions.
% The function is only available in combination
with Mercedes me connect and on lyin cer‐
ta in countries.
% Protective cases around the mobile phone
can impair thera nge of functions.
If th eve hicle has been par kedfo r longer than
two weeks, the NFC aerial in the door handle is
deactivated. #
Pull the door handle.
The NFC aerial is activated. #
Touch the door handle on the driver's door in
th e area where NFC aerial 1is located with
th e part of the Digital Vehicle Key where the
NFC aerial is located.
The vehicle is loc ked or unloc ked alternately.
If yo u lose your Digital Vehicle Key,deactivate
th e "Digital Vehicle Key" service in Mercedes me
connect via http://www.mercedes.m e. Locking/unlocking
theve hicle with KEY‐
LESS-GO Re
quirements:
R The key is outside theve hicle.
R The dis tance between theke y and theve hicle
does not exceed 1 m.
R The driver's door and the door at which the
door handle is used are closed. Opening and closing
71

#
Tounlo cktheve hicle: touch the inner sur‐
fa ce of the door handle. #
Tolock theve hicle: touch sensor sur face
1 or2. #
Convenience closing: touch recessed sen‐
sor su rface 2until the closing procedure is
comple te. %
Further information on con venience closing
(→ page 78).
If yo u open theta ilgate from outside it is auto‐
matically unloc ked. Problems with KEYLESS-GO
Problem
Possible causes/consequences and M
MSolutions
Yo u can no lon ger lock or unlock the
ve hicle using KEYLESS-GO. Po
ssible causes:
R The key functions ha vebeen deactivated .
R The key bat tery iswe ak or dischar ged.
R There is inter fere nce from a po werful radio signal source.
R The key is faulty. #
Activate theke y functions (→ page 66). #
Check the battery using the battery check lamp and replace if necessary (→ page67). #
Use the emer gency keyto unlo ckor lock theve hicle (→ page67). #
Have theve hicle and keych ecked at a qualified specialist workshop. 72
Opening and closing

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. #
Toactivate: press and hold button 2for
appr oximately five seconds until an acoustic
signal sounds. #
Todeactivate: press and hold button 1for
appr oximately five seconds until an acoustic
signal sounds.
When theve hicle is loc ked automatically, the
indicator lamp in button 2lights up.
In thefo llowing situations, there is a danger of
being loc ked out when the function is activated:
R While theve hicle is being tow star ted/
pushed.
R The vehicle is being tested on the dynamom‐
et er. Locking/unlocking
theve hicle with the
emer gency key Locking/unlocking
the driver's door with the
emer gency key
% Ifyo u wish tolock theve hicle entirely using
th e emer gency key,firs t press the button for
locking from the inside while the driver's
door is open. Then proceed tolock the driv‐
er's door using the emer gency key. #
Insert the emer gency key as far as it will go
into opening 1inthe co ver. #
Pull and hold the door handle. #
Pull the co ver on the emer gency key as
st ra ight as possible away from theve hicle
until it releases. #
Release the door handle. Opening and closing
73

#
Tounlo ck:turn the emer gency key anti-
clo ckwise toposition 1. #
Tolock: turnthe emer gency key clo ckwise to
position 1. #
Carefully press the co ver onto the lock cylin‐
der until it engages and is seated firm ly. Locking
the front passenger door and rear
doors with th e emergency key #
Insert a suitable object, e.g. the emer gency
ke y,into opening 1onthe door loc k. #
Tolock the left-hand side of theve hicle:
turn the emer gency key anti-clo ckwise as far
as it will go. #
Tolock theright-hand side of theve hicle:
turn the emer gency key clo ckwise as far as it
will go.
If th e loc ked door is then closed, it can no longer
be opened from outside. Load compartment
Opening
the tailgate &
DANG ER Risk of exhaust gas poisoning
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Exhaust
ga ses can enter theve hicle interior if theta il‐
gate is open when the engine is running,
especially if theve hicle is in motion. #
Alw ays switch off the engine before
opening theta ilgate. #
Never drive with theta ilgate open. 74
Opening and closing

*
NO
TEDama getotheta ilgate caused by
obs tacles ab ovetheve hicle The
tailgate swings rear wa rds and upwards
when it is opened. #
Make sure that there is suf ficient space
behind and ab ovetheta ilgate. #
Pull theta ilgate handle. Closing
the tailgate &
WARNING Risk of inju ryfrom unsecu red
items in theve hicle
If objects, luggage or loads are not secured
or not secured suf ficientl y,they could slip,
tip ove r or be throw n around and thereby hit
ve hicle occupants.
There is a risk of injur y,particularly in the
ev ent of sudden braking or a sudden change
in direction. #
Alw aysstow objects in such a wayth at
th ey cannot be thro wn around. #
Before the journe y,secure objects, lug‐
ga ge or loads against slipping or tipping
ove r. #
Pull theta ilgate down with the handle and let
it drop into the loc k. Un
locking the tailgate with the emer gency
key #
Foldthere ar seat backrest forw ards. #
Remo vethe load compartment co ver
( → page 106). #
Insert emergency key2 into opening 1in
th e trim and push it in.
The tailgate will be unloc ked. Opening and closing
75

Side windo
ws Opening and closing
the side windo ws &
WARNING Risk of becoming trapped
when opening a side window
When you open a side wind ow, parts of the
body could be dr awn in or become trapped
between the side window and window frame. #
When opening, make sure that nobody
is touching the side windo w. #
If someone is trapped, release the but‐
to n immedia tely or pull it in order to
close the side window again. &
WARNING Risk of becoming trapped
when closing a side window
When closing a side windo w,body parts
could be trapped in the closing area in the
process. #
When closing, make sure that no body
parts are in the closing area. #
If someone is trapped, release the but‐
to n immedia tely or press the button in
order toreopen the side windo w. &
WARNING Risk of becoming trapped
when children opera tethe side windo ws
Children could become trapped if they oper‐
ate the side windo ws, particularly when unat‐
te nded. #
Activate theove rride feature forthe
re ar side wind ows. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle. #
Never lea vechildren unat tended in the
ve hicle. Re
quirements:
R The po wer supply or the ignition is switched
on. 1
Closing
2 Opening
The buttons on the driver's door take prece‐
dence. #
Tostart automatic operation: pressthe
W button be yond the point of resis tance
or pull and release it. 76
Opening and closing

Sliding sunroof
Opening and closing
the sliding sunroof %
The term "sliding sun roof" also refers to the
panoramic sliding sunroof. &
WARNING Risk of becoming trapped
while opening and closing the sliding
sunroof
During opening and closing, parts of the
body could getcaught in the sweep of the
sliding sunroof. #
When opening or closing, make sure
that no body parts are in the sweep. #
Release the button immediately if
somebody becomes trapped.
or #
Press the button in any direction during
th e automatic opening/closing process.
The opening/closing process is stop‐
ped. &
WARNING Risk of entrapment if the slid‐
ing sunroof is operated bychildren
Children operating the sliding sunroof could
get caught in the moving parts, particularly if
unattended. #
Never lea vechildren unat tended in the
ve hicle. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle. &
WARNING Risk of entrapment while
opening and closing thero ller sunblinds
When opening or closing, make sure that no
body parts become trapped between the
ro ller sunblind and frame or sliding sunroof. #
When opening or closing, make sure
that no body parts are in the sweep of
th ero ller sunblind. #
Release the switch immediately if
somebody becomes trapped.
or #
Press the switch in any direction during
th e automatic opening/closing process.
The opening/closing process is stop‐
ped. *
NO
TEMalfunction caused bysnow and
ice Snow and ice may lead
toa malfunction of
th e sliding sunroof. #
Only open the sliding sunroof if it is free
of snow and ice. *
NO
TEDama gecaused byprotru ding
objects Objects
that pr otru de from the sliding sun‐
ro of may damage the sealing strips. #
Do not allow anything toprotru de from
th e sliding sunroof. 80
Opening and closing