clock MERCEDES-BENZ A-CLASS HATCHBACK 2021 Owners Manual

#
T To unloc o unloc k:
k:turn the emer gency key anti-cloc k-
wise toposition 1. #
T
To loc
o loc k:
k:turn the emer gency key clockwise to
position 1. #
Carefully press the co ver onto the lock cylin-
der until it engages and is seated /rml y.Loc
Loc
king t
king t he fr
he front passeng
ont passeng er door and r
er door and r ear doors
ear doors #
Insert a suitable object, e.g. the emer gency
ke y,into opening 1onthe door loc k. #
T
T o loc
o loc k t
k the
he leT-hand
leT-hand side of t
side of the v
he vehicle:
ehicle: turn
th e emer gency key anti-clockwise as far as it
will go. #
T
To loc
o loc k t
k the r
he r ight-hand side of t
ight-hand side of t he v
he vehicle:
ehicle: turn
th e emer gency key clockwise as far as it will
go.
If th e loc ked door is then closed, it can no longer
be opened from the outside. Load com
Load com
par
partment
tment Opening t
Opening t
he t
he tailg
ailgate
ate &
D
DAN
AN GER
GER Risk of poisoning from exhaust
ga ses
Combustion engines emit poisonous exhaust
ga ses, such as carbon monoxide. Exhaust
ga ses can enter theve hicle interior if theta il-
ga te is open when theve hicle is running,
especially if theve hicle is in motion. #
Always switch o. theve hicle before
opening theta ilgate. #
Never drive with theta ilgate open. 90
90
Opening and closing

#
T
To r
o r emov
emov e:
e:turn co ver1 tothe leT and
re mo veit from the wheel ar chliner. #
T
To
o /t:
/t: insert co ver1 into the wheel ar chliner
and turn it totheright until it engages.
R
R eplacing light sour
eplacing light sour ces in t
ces in t he halog
he halog en headla mp
en headlamp
R
R eq
eq uir
uir ements:
ements:
R Lo
Low beam:
w beam: an H7 55 W light source is availa-
ble.
R High beam:
High beam: an H7 55 W light source is availa-
ble. 1
Low beam housing co ver
2 High beam housing co ver #
Switch the lighting system o.. #
Remo vethe co ver in the front wheel ar ch
( / page 144). #
Turn there leva nt housing co ver anti-clockwise
and remo veit. #
Turn the soc ket anti-clockwise and remo veit. #
Pull the light source out of the soc ket. #
Inse rtthe new light source into the soc ket
such that the entire base of the light source is
re sting on the bottom of the soc ket. #
Inse rtthe soc ket and turn it clockwise. #
Press on the housing co ver and turn it cloc k-
wise. #
Replace the co ver in the front wheel ar ch
( / page 144). Changing t
Changing t
he r
he rear bulbs (v
ear bulbs (v ehicles wit
ehicles with halog
h halogen
en
headlam
headlam ps)
ps) R R
eplacing t
eplacing t he t
he t ail lam
ail lam p bulbs
p bulbs #
Due totheir locations, ha vethe bulbs forthe
turn signal light and reve rsing light changed at
a qu ali/ed specialist workshop. W W
indscr
indscr een wiper
een wiper s and windscr
s and windscr een w
een washer sy
asher sy s-
s-
t
t em
em Switc
Switc
hing t
hing t he windscr
he windscr een wiper
een wipers
son/o.
on/o. 1
gWindsc reen wipers o.
2 Ä Automatic wiping, normal
3 Å Automatic wiping, frequent Light and sight
145
145

The
Tank is depressurised Ready for refuel-
ling messa geappears in the Instrument Dis-
pla y.
% Inthefo llowing situations there is a malfunc-
tion:
R indicator lamp 20ashes initially and then
goes out
R theye llow ; engine diagnosis warning
lamp lights up
The fuel tank can only be bled if the conditions
mentioned abo veare ful/lled. Otherwise, drive the
ve hicle at least 0.5 km and repeat the procedure.
% Opening the fuel /ller 0ap ma y,in exceptional
cases, take up to15 minutes. 1
Fuel /ller 0ap
2 Brac ketfo r fuel /ller cap
3 Tyre pressure table
4 Fuel type
5 QR code forre scue card #
Press on the back area of fuel /ller 0ap 1. #
Turn the fuel /ller cap anti-clockwise and
re mo veit. #
Insert fuel /ller cap from abo veinto brac ket
2 . #
Comple tely insert the pump nozzle into the
ta nk /ller nec k,hook in place and refuel. #
Only /ll the fuel tank until the pump nozzle
switches o..
% V Vehicles wit ehicles wit h a diesel engine:
h a diesel engine: theta nk /ller
neck is designed forre fuelling at diesel /lling
pumps.
% V
Vehicles wit
ehicles wit h a diesel engine:
h a diesel engine: whenthe fuel
ta nk is comple tely em pty, top up with at least
5 litres of diesel.
% V
Vehicles wit
ehicles wit h a diesel engine:
h a diesel engine: use a /ller neck
with a lar gediame terfo rve hicles with a diesel
engine when topping up fuel from a fuel can.
Otherwise, the /ller neck cannot slide into the
ta nk. #
Replace the cap on the /ller neck and turn
clockwise until it engages audibl y. #
Close fuel /ller 0ap 1. Driving and parking
191
191

re
maining distance displa yed has been driven.
To p up with at least 5 l of AdBlue ®
.
R XX,X l Top up AdBlue Emer. op.: max. XXX
km/h Start not poss. in XXX km The low
Ad Blue ®
leve l will lead tolimited per form ance
from the speed displa yed. ATer there maining
distance displa yed has been co vered, it will no
longer be possible tostart theve hicle. Top up
with at least the amount of AdBlue ®
displa yed.
R XX,X l Top up AdBlue Switch on ignition, wait
60 sec. or eng. start not poss. TheAdBlue ®
ta nk is em pty. Yo u can no longer start the
ve hicle. Top up with at least the amount of
Ad Blue ®
displa yed. Switch on theve hicle and
wa itfor appr oximately 60 seconds. Start the
ve hicle.
Yo u can see theAd Blue ®
range and le vel in the
Service menu in the Instrument Displa y.
% The AdBlue ®
range sh own depends strongly
on the driving style and operating conditions.
The actual range can therefore deviate from
th e calculated range. Opening t
Opening t he A he AdBlue
dBlue ®
®
/ller
/ller cap
cap #
Press on the back area of fuel /ller 0ap 1. #
Turn AdBlue ®
/ller cap 2anti-clockwise and
re mo veit.
% You can also store theAd Blue ®
/ller cap in
th e fuel /ller cap holder in the fuel /ller 0ap
hinge arm. T
T opping up A
opping up A dBlue
dBlue®
®
Mercedes-Benz recommends topping up AdBlue ®
at a /lling pump. If no AdBlue ®
/lling pump is
av ailable, you can also top up AdBlue ®
using a
canister. #
Screw onthefa stener of AdBlue ®
re/ll canis-
te r4. Driving and parking
193
193

&
W
W ARNI NG
ARNI NGRisk of /re and injury from
engine oil
If engine oil comes into contact with hot com-
ponent parts in the engine compartment, it
may ignite. #
Make sure that no engine oil is spilled
next tothe /ller opening. #
Allow the engine tocool o. and thor-
oughly clean the engine oil from compo-
nent parts before starting theve hicle. *
N
NO OTE
TE Engine damage caused byan inco r-
re ct oil /lter, incor rect oil or additi ves #
Do not use engine oils or oil /lters which
do not cor respond tothe speci/cations
ex plicitly prescribed forth e service inter-
va ls. #
Follow the inst ructions on the service
inter val display forch anging the engine
oil and obser vethe prescribed change
inter vals. #
Do not use additives. *
N
NOOTE
TE Damage caused bytopping up too
much engine oil To
o much engine oil can damage the engine or
th e catalytic con verter. #
Have excess engine oil remo ved at a
qu ali/ed specialist workshop. %
Depending on driving st yle, theve hicle con-
sumes up to0.8 litre of oil per 1000 km. The
oil consum ption may be higher than this when
th eve hicle is new or if you frequently drive at
high engine speeds. #
Turn cap 1anti-clockwise and remo veit. #
Top up the engine oil. #
Replace cap 1and turn it clockwise until it
engages. #
Check the oil le vel again (/ page 334). Maintenance and care
335
335

Chec
Chec
king t
king t he coolant lev
he coolant lev el
el &
W
WARNING
ARNING Risk of burns from hot compo-
nent parts in the engine compartment
Cer tain component parts in the engine com-
partment can be very hot, e.g. the engine, the
cooler and parts of theex haust system. #
Allow the engine tocool down and only
to uch component parts described in the
fo llowing. &
W
WARNING
ARNING Risk of scalding from hot cool-
ant
If yo u open the cap, you could be scalded. #
Let the mo tor cool down before opening
th e cap. #
When opening the cap, wear pr otective
glo ves and saf ety glasses. #
Open the cap slo wlytorelease pressure. #
Park theve hicle on a le vel sur face. #
Check the coolant temp erature display in the
inst rument cluster.
The coolant temp erature must be below 70°C. #
Slowly turn cap 1anti-clockwise torelease
ove rpressure. #
Continue turning cap 1anti-clockwise and
re mo veit. The coolant le
vel is cor rect in thefo llowing cases:
R Ifth e engine is cold, the coolant is up to
mar ker bar 2.
R Ifth e engine is warm,th e coolant is up to
1.5 cm overth e mar ker bar 2. #
If necessar y,top up with coolant that has
been appr ovedfo r Mercedes-Benz.
% Further information on coolant (/ page 401) T
T
opping up t
opping up t he windscr
he windscreen w
een washer syst
asher syst em
em &
W
WARNING
ARNING Risk of burns from hot compo-
nent parts in the engine compartment
Cer tain component parts in the engine com-
partment can be very hot, e.g. the engine, the
cooler and parts of theex haust system. #
Allow the engine tocool down and only
to uch component parts described in the
fo llowing. 336
336
Maintenance and care

#
Screw intheto wing eye clockwise as far as it
will go and tighten.
V
V ehicles wit
ehicles wit h a tr
h a trailer hitc
ailer hitc h:
h:vehicles with a trailer
hitch do not ha veare ar brac ketfo rth eto wing
ey e. Fasten theto w bar tothe trailer hitch. #
Make sure that co ver1 engages in the
bumper when youre mo vetheto wing eye.
* N
NOOTE
TE Damage totheve hicle due toincor-
re ct use of theto wing eye or trailer hitch When a
towing eye or trailer hitch is used to
re co ver a vehicle, theve hicle may be damaged
in the process. #
Only use theto wing eye or trailer hitch to
to w awa y or tow start theve hicle. #
Do not use theto wing eye or trailer hitch
to to wtheve hicle during reco very. T
T
o
o w
w -st
-st ar
arting t
ting t he v
he vehicle
ehicle V V
ehicles wit ehicles wit h aut
h automatic tr
omatic tr ansmission
ansmission
* NO
NOTE
TEDamage tothe automatic transmis-
sion due to tow-starting The au
tomatic transmission may be damaged
in the process of tow- starting vehicles with
automatic transmission. #
Vehicles with automatic transmission
must not be tow- star ted. #
Vehicles with an automatic transmission must
not be tow- star ted.
V V ehicles wit ehicles wit h manual tr
h manual tr ansmission
ansmission #
Obser vethe no tes on towing away
( / page 360). #
If necessar y,allow the engine and exhaust
system tocool down. #
Swit chon the ignition. #
Engage second gear. #
Release the electric parking brake. #
Tow- start theve hicle while the clutch pedal is
fully depressed. #
Slowly re leasethe clutch pedal. #
Immediately shiT toneutral if the engine
starts. #
Stop theve hicle in accordance with the tra1c
conditions. #
Remo vetheto w bar. #
Remo vetheto wing eye. #
Have theve hicle checked at a quali/ed spe-
cialist workshop. Electr
Electr
ical fuses
ical fuses N
No
ot
tes on electr
es on electr ical fuses
ical fuses &
W
WARNING
ARNING Risk of accident and injury due
to ove rloaded lines
If yo u manipulate or bridge a faulty fuse or if
yo ure place it with a fuse with a higher amper-
age, the electric line could be overloaded.
This could result in a /re. 364
364
Breakdown assis
tance

Plas
Plastic hub cap
tic hub cap #
T
To r
o r emov
emov e:
e:turn the centre co ver of the hub
cap anti-clockwise and remo vethe hub cap. #
T To o /t:
/t: make sure that the centre co ver of the
hub cap is turned anti-clockwise. #
Position the hub cap and turn the centre co ver
clockwise until the hub cap engages ph ysically
and audibl y.
Aluminium hub cap
Aluminium hub cap #
T
To r
o r emov
emov e:
e:position soc ket2 from the tyre-
ch ange tool kit on hub cap 1. #
Position wheel spanner 3on soc ket2. #
Using wheel spanner 3, turn hub cap1
anti-clockwise and remo veit. #
T
To
o /t:
/t: follow the inst ructions abo veinreve rse
order.
% Speci/ed
Speci/ed tight
tightening t
ening t orq
orque:ue: 25 Nm. R
R
aising t
aising t he v
he vehicle when c
ehicle when c hanging a wheel
hanging a wheel R
R
eq
eq uir
uir ements:
ements:
R There are no persons in theve hicle.
R The vehicle has been prepared for a wheel
ch ange (/ page 378).
R The wheel trims and hub caps ha vebeen
re mo ved (/ page 378).
Impor tant no tes on using the jack:
R Use only a vehicle-speci/c jack that has been
appr ovedby Mercedes-Benz toraise theve hi-
cle.
R The jack is only designed forra ising and hold-
ing theve hicle for a short time while a wheel
is being changed and not for maintenance
wo rkunder theve hicle. R
The jack must be placed on a /rm, 0at and
non-slip sur face. If necessar y,use a lar ge, 0at,
load-bearing, non-slip underla y.
R The foot ofthe jack must be positioned verti-
cally under the jack support point. Wheels and tyres
379
379

#
Position support 2of jack 4on jack sup-
port point 1.
% Ifth ere is a tota l loss of pressure in a tyre, it
may be possible that the jack cannot be posi-
tioned at jack support point 1. Inthis case,
unload theve hicle. #
Turn ratchet 3clockwise until support 2
sits comple tely on jack support point 1and
th e base of the jack lies evenly on thegr ound. #
Turn ratchet 3until the tyre is raised a maxi-
mum of 3 cm from thegr ound. #
Loosen and remo vethe wheel (/ page 381). R
R
emo
emo ving a wheel
ving a wheel R
R
eq
eq uir
uir ements:
ements:
R The vehicle is raised (/ page 379).
* NO
NOTE
TEMercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. When
changing a wheel, avoid applying any force
to the brake disks, as this could impair the le vel of
comfort when braking. *
N
NOOTE
TE Damage tothre ading from dirt on
wheel bolts #
Do not place wheel bolts in sand or on a
dirty sur face. #
Unscr ewthe uppermost wheel bolt com-
ple tely. #
Screw cent ring pin 1into theth re ad ins tead
of the wheel bolt. #
Unscr ewthere maining wheel bolts com-
ple tely. #
Remo vethe wheel and, if necessar y,store it in
th e load compartment. Wheels and tyres
381 381

*
N
N O
OTE
TE Damage tothe emer gency spa re
wheel when lo wering theve hicle Lo
we ring theve hicle without pr eviously in0at-
ing the emer gency collapsible spa rewheel can
damage its rim. #
In0a tethe emer gency collapsible spa re
wheel using the tyre in0ation compressor
before lo wering theve hicle. #
T To low o low er t
er the v
he v ehicle:
ehicle: placethera tchet onto
th e he xagon nut of the jack so that the letters
"AB" are visible and turn anti-clockwise. #
Tighten the wheel bolts evenly in a diagonal
pattern in the order indicated 1to5 with
an initial maximum forc e of 80 Nm. #
Tighten the wheel bolts evenly in a diagonal
pattern in the order indicated 1to5 with
th e speci/ed tightening torque of 130 Nm. &
W
WARNING
ARNING Risk of accident due toincor-
re ct tightening torque
The wheels could come loose if the wheel
bolts or wheel nuts are not tightened tothe
prescribed torque. #
Ensure that the wheel bolts or wheel
nuts are tightened tothe prescribed
tightening torque. #
Ifyo u are not sure, do not mo vetheve hi-
cle. Con tact a quali/ed specialist work-
shop and ha vethe tightening torque
ch ecked immediatel y. #
Check the tyre pressure of the ne wly/tted
wheel and adjust it if necessar y.%
The following does not apply if the new wheel
is an emer gency spa rewheel. #
V
Vehicles wit
ehicles wit h tyr
h tyre pr
e pressur
essur e loss w
e loss w ar
arning sy
ning sy s-
s-
t
t em:
em: restart the tyre pressure loss warning
system (/ page 373). #
V
Vehicles wit
ehicles wit h a tyr
h a tyre pr
e pressur
essur e monit
e monit or
oring sy
ing sy s-
s-
t
t em:
em: restart the tyre pressure monitoring sys-
te m (/ page 372). Emerg
Emerg
ency spar
ency spar e wheel
e wheel N
No
ot
tes on t
es on t he emerg
he emerg ency spar
ency spar e wheel
e wheel &
W WARNING ARNING Risk of accident caused by
incor rect wheel and tyre dimensions
The wheel or tyre size and the tyre type of the
emer gency spa rewheel or spare wheel and
th e wheel tobe replaced may di.er. The emer-
ge ncy spa rewheel or spare wheel can signi/-
cantly impair driving characteristics of the
ve hicle.
To prev ent hazardous situations: #
Drive carefull y. Wheels and tyres
383
383