engine MERCEDES-BENZ A-CLASS SALOON 2021 Manual PDF

Mercedes-Benz
recommends having the oil
ch anged at a quali/ed specialist workshop.
Only use engine oils appr ovedfo ryo ur vehicle by
Mercedes-Benz.
P
P e etr
tr ol engines:
ol engines: for cer tain countries, di.erent
engine oils can be used in conjunction with
re duced maintenance inter vals. Further informa-
tion on di.erent engine oils can be obtained at a
qu ali/ed specialist workshop.
Quality and capacity of engine oil
Quality and capacity of engine oil
No No t f
t for plug-in h
or plug-in h ybr
ybrid:
id:
Engine oil
Engine oil speci/cations
speci/cations (pe
(petr
trol engines)
ol engines) Model
Model
MB-Fr
MB-Freig
eigabe or MB-
abe or MB-
Appr ov
Approv al
al
All models 229.51, 229.52,
229.61, 229.71*, 229.72 Engine oil
Engine oil
speci/cations
speci/cations (diesel engines)
(diesel engines) Model
Model
MB-Fr
MB-Freig
eigabe or MB-
abe or MB-
Approv
Approv al
al
All models 229.52, 229.61,
229.71*, 229.72 *
re commended forth e lo west possible fuel con-
su mp tion
To achie vethe lo west possible fuel consum ption,
it is recommended touse the engine oil speci/ca-
tions mar ked in theta ble forth e lo westSA E vis-
cosity class. Obser veany possible restrictions of
th e appr ovedSA E viscosity classes.
% Ifth e engine oils listed in theta ble are not
av ailable, you may add a maximum of 1.0 litre
of thefo llowing engine oils once onl y.
V
V ehicles wit
ehicles wit h a pe
h a petr
trol engine:
ol engine: MB-Freigabe or
MB-Appr oval 229.31 or ACEA C3
V
V ehicles wit
ehicles wit h a diesel engine:
h a diesel engine: ACEA C3
No
No t f
t for plug-in h
or plug-in h ybr
ybrid:
id: Engine oil
Engine oil
/lling
/llingcapacity
capacity Model
Model
Capacity
Capacity
A 180, (manual and
automatic transmis-
sion)
A 200, (manual and
automatic transmis-
sion)
A 200 4MATIC 5.1 litres
A 250
A 250 4MATIC 5.5 litres
All other model s6 .8 litres The speci/e
d/lling capacity refers to an oil
ch ange with the oil /lter. 392 392
Te
ch nical data

Engine oil
Engine oil
speci/cation
speci/cation (plug-in h
(plug-in hybr
ybrid)
id) Model
Model
MB-Fr
MB-Freig
eigabe or MB-
abe or MB-
Appr ov
Approv al
al
A 250 e2 29.51, 229.52,
229.61, 229.71*, 229.72 *
re commended forth e lo west possible fuel con-
su mp tion
To achie vethe lo west possible fuel consum ption,
it is recommended touse the engine oil speci/ca-
tions mar ked in theta ble forth e lo westSA E vis-
cosity class. Obser veany possible restrictions of
th e appr ovedSA E viscosity classes.
% Ifth e engine oils listed in theta ble are not
av ailable, you may add a maximum of 1.0 litre
of engine oils with MB-F reigabe or MB-
Appr oval 229.31 or ACEA C3 once onl y.
Engine oil capacity (plug-in h
Engine oil capacity (plug-in h ybr
ybrid)
id) Model
Model
Capacity
Capacity
A 250 e4 .5 litres The speci/e
d/lling capacity refers to an oil
ch ange with the oil /lter. N
No
ot
tes on br
es on br ak
ake
e0uid
0uid No
tethe inst ructions about operating 0uids
(/ page 385). &
W
WARNING
ARNING Risk of an accident due to
va pour poc kets form ing in the brake sys-
tem
The brake 0uid constantly absorbs moisture
from the air. This lo wersthe boiling point of
th e brake 0uid. If the boiling point is too lo w,
va pour poc kets may form inthe brake system
when the brakes are applied hard.
This impairs the braking e.ect. #
Have the brake 0uid rene we d at the
speci/ed inter vals. Ha
ve the brake 0uid regula rly re placed at a quali-
/ed specialist workshop.
Only use a brake 0uid appr ovedby Mercedes-
Benz according toMB-F reigabe or MB-Appr oval
331.0. Coolant Coolant
N
No
ot
tes on coolant
es on coolant
Obser vethe no tes on operating 0uids
(/ page 385). &
W
WARNING
ARNING Risk of /re‑ and injury from
antif reeze
If antifreeze comes into contact with hot com-
ponent parts in the engine compartment, it
may ignite. #
Allow the engine tocool down before
yo uto p up the antifreeze. #
Make sure that no antif reeze spills out
next tothe /ller opening. #
Thoroughly clean the antifreeze from
component parts before starting the
ve hicle. *
N
NOOTE
TE Damage caused byincor rect cool-
ant #
Only use coolant that has been premixed
with there qu ired antifreeze pr otection. Te
ch nical data
393
393

Information on coolant is
available at thefo l-
lowing locations:
R Inthe Mercedes-Benz Speci/cation for
Operating Fluids 320.1
- Athttps://be vo.mercedes-benz.com
- Inthe Mercedes-Benz BeVo App
R Ataqu ali/ed specialist workshop *
N NOOTE TE Overheating at high outside temp er-
atures If an inappropriate coolant is used,
the engine
cooling system is not su1ciently pr otected
against overheating and cor rosion at high out-
side temp eratures. #
Only use coolant appr ovedby Mercedes-
Benz. #
Obser vethe inst ructions in the
Mercedes-Benz Speci/cations for Oper-
ating Fluids 320.1. Ha
ve the coolant regula rly re placed at a quali/ed
specialist workshop. Proportion of antif
reeze concentrate in the engine
cooling system:
R A minimum of 50% (antifreeze pr otection down
to about -37°C)
R A maximum of 55% (antif reeze pr otection
down to-45°C) N
No ot
tes on windscr
es on windscr een w
een washer
asher 0uid
0uid Obser
vethe no tes on operating 0uids
(/ page 385). &
W
WARNING
ARNING ‑ Risk of /re and injury due to
windscreen washer concent rate
Wi ndsc reen washer concent rate is highly 0am-
mable. It could ignite if it comes into contact
with hot engine component parts or the
ex haust system. #
Make sure that no windscreen washer
concent rate spills out next tothe /ller
opening. *
N NOOTE
TE Damage totheex terior lighting due
to unsuitable windscreen washer 0uid Unsuitable windscreen
washer 0uids may
damage the plastic sur face of theex terior
lighting. #
Only use windscreen washer 0uids which
are also suitable for use on plastic sur fa-
ces, e.g. MB SummerFit or MB WinterFit. *
N
NOOTE
TE Bloc ked spr aynozzles caused by
mixing windscreen washer 0uids #
Do not mix MB SummerFit and MB Win-
te rFit with other windscreen washer 0u-
ids. Do not use distilled or de-ionised
water. Other-
wise, the /ll le vel sensor may be triggered er rone-
ous ly.
Re commended windscreen washer 0uid:
R abo vefreezing point: e.g. MB SummerFit
R below freezing point: e.g. MB WinterFit 394
394
Te
ch nical data

A 250 e
A 250 e
Cha
rge time – mode 2
with 3.7 kW charging capacity App
rox. 3 h
15 min
Char getime – mode 2
with 2.3 kW charging capacity App
rox. 5 h
30 min
Char getime – mode 2
with 1.8 kW charging capacity App
rox. 7 h
30 min Char
getimes – modes 2 and 3 app lyto alternat-
ing cur rent charging from 10% to100% of the usa-
ble energy content. Char getime – mode 4 applies
to direct cur rent charging from 10% to80% of the
usable energy content.
The time take nto charge the battery depends on
th ech arge status of the batter y,the ambient tem-
perature and thech arging capacity of the batter y.
The charging capacit y,in turn, depends on the
supply voltage, the cur rent intensity and the type
of po wer suppl y.
The nominal voltage range foryo ur vehicle can be
fo und on the information label in the soc ket co ver
( / page 188). T T
r
railer hitch
ailer hitch Gener
Gener
al not
al notes on t
es on t he tr
he trailer hitch
ailer hitch Modi/cations
tothe engine cooling system may
be necessar y,depending on theve hicle model.
The retro/tting of a trailer hitch is on lypermissi-
ble if a towing capacity is speci/ed in your vehicle
documents.
Fu rther information can be obtained at a quali/ed
specialist workshop. Mounting dimensions of t Mounting dimensions of t
he tr
he trailer hitch
ailer hitch 1
Fastening points
2 Overhang dimension
3 Rear axle cent reline Te
ch nical data
397
397

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Á
Key not detected (white dis-
play message) *T
hekey is cur rently unde tected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, place it in the slot for starting with theke y (/ page 160).
Á Key not detected (red dis-
play message) *T
hekey cann otbe de tected and may no longer be in theve hicle.
The key is no lon ger in theve hicle and you switch o. theve hicle:
R You can no longer start theve hicle.
R You cannot centrally lock theve hicle. #
Ensu rethat theke y is in theve hicle.
If th eke y de tection function has a malfunction due toa st rong radio signal source: #
Stop theve hicle immediately in accordance with the tra1c conditions. #
Place theke y in the slot for starting the engine with theke y (/ page 160).
Á Key being initialised Please
wait *T
hevehicle is processing in order to teach in the new key. #
Wait until processing is comple te. Display messages and
warning/indicator lamps
407
407

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Place the key in the
marked space See Owner's
Manual *K
eydetection is malfunctioning. #
Change the location of theke y in theve hicle. #
Place theke y in the slot for starting the engine with theke y (/ page 160). Lights Lights
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences andM
MSolutions
Solutions
:
Left dipped beam (examp le) *T
he cor responding light source is defecti ve. #
Drive on carefull y. #
Consult a quali/ed specialist workshop immediatel y.
or #
Check whe ther you are permitted toreplace the light source yourself (/ page 140).
% LED light sources: the display message forth e cor responding light appears only when all the light-emitting diodes
in the light are faulty. 408
408
Display message
s andwarning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Until then, operate the high beam manuall y.
Hazard warning lamps mal-
functioning *T
he hazard warning lamp switch is malfunctioning. #
Consult a quali/ed specialist workshop. Climat Climat
e contr
e contr ol
ol Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences andM
MSolutions
Solutions
&
inoperative See Owner's
Man. *T
he stationary heater is temp orarily malfunctioning. #
When theve hicle is stationary on a le vel sur face and the engine has cooled down, make up tofour attem ptsto
switch on the stationary heater, waiting se veral minutes between each attem pt. #
Ifth e stationary heater does not switch on, consult a quali/ed specialist workshop.
&
inoperative Battery low *T
he on-board elect rical system voltage is too lo w.
The stationa ryheater has switched itself o.. #
Drive an extended distance until the battery has reached a su1cient charge leve l again. 412 412
Display message
s andwarning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
&
Pre-entry climate control
(via key) available again
after engine start *Y
ou ha veattem pted toswitch on pre-ent ryclimate cont rol more than twice with theve hicle switched o.. #
Start theve hicle forte n seconds.
Pre-entry clima tecont rol is operational again.
& Pre-entry climate control
(via key) inoperative HV-
battery low *T
hecharge ofthe high-voltage battery is too lo w.Pre-entry clima tecont rol cannot be switched on. #
Char gethe high-voltage batter y.
When the high-voltage battery is su1ciently charge d, pre-ent ryclimate cont rol will be operational again. 414 414
Display message
s andwarning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Request service personnel from the operator of thech arging station via the emer gency call button attached tothe
ch arging station or the emer gency call numbers.
Vehicle not currently being
charged Charging station
fault *A
malfunction has occur red in thech arging station or the RFID card is not recognised. #
Start thech arging process at a di.erent charging station.
or #
Have the RFID card checkedto ensure it is functioning.
Charging method currently
unavailable Please try
again or change charging
method *A
temp orary malfunction has occur red in thech arging station. #
Wait until the malfunction has passed.
or #
Start thech arging process at a di.erent charging station.
Charging fault Please
change charging method
See Owner's Manual *A
temp orary malfunction has occur red in thech arging station. #
Wait until the malfunction has passed.
or #
Start thech arging process at a di.erent charging station.
Only electric drive availa-
ble Power limited *T
he fuel tank is em pty and the combustion engine is switched o.. The output of your vehicle is limi ted because you
are driving in elect ric mode. 416 416
Display messages and
warning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Refuel immedia tely.
Subse quentl y,there may be temp orary restrictions in theav ailability of elect ric mode over a driving distance of
50 km.
If th ere is fuel in theve hicle, there is a fault with the combustion engine. #
Consult a quali/ed specialist workshop.
"Electric" drive program
currently unavailable *T
hecharge leve l of the high-voltage battery is not su1cient forth e Electric drive prog ram.
Char gethe high-voltage battery (/ page 188).
Reduced drive system per-
formance See Owner's
Manual *T
he drive system switches toemer gency ope ration mode due toa malfunction. #
Drive on carefull y. #
Consult a quali/ed specialist workshop.
Û
Battery overheated Stop,
everybody out! Outdoors if
possible *T
he high- voltage battery has overheated. There is a risk of /re. #
Stop theve hicle immediately in accordance with the tra1c conditions. #
If possible, stop theve hicle in the open air and ensure that all vehicle occupants getout.
% Supporting vehicle functions may activate automaticall y,e.g. the air-recirculation mode as part of climate control. #
Do not continue driving. #
If smoke is present, lea vethe danger zone and call the /re service immediatel y. #
Consult a quali/ed specialist workshop even if there are no extern al signs of a /re. Displ
aymessages and warning/indicator lamps
417 417