2021 MERCEDES-BENZ A-CLASS HATCHBACK brake pads

R
Only increase the engine speed gradually and
accelerate theve hicle tofull speed aTer
1,500 km.
This also applies when the engine or parts of the
driv etra in ha vebeen replaced.
Please also obser vethefo llowing running-in
no tes:
R In cer tain driving and driving saf ety sy stems,
th e sensors adjust automatically while a cer-
ta in distance is being driven aTer theve hicle
has been deli vered or aTer repairs. Full sys-
te m e.ectiveness is not reached until the end
of this teach-in process.
R Brakepads, brake disks and tyres that are
either new or ha vebeen replaced only achie ve
optimum braking e.ect and grip aTer se veral
hund red kilometres of driving. Compensate for
th ere duced braking e.ect byapplying greater
fo rc eto the brake pedal. N
No
ot
tes on dr
es on dr iving
iving &
W
WARNING
ARNING Risk of accident due toobjects
in the driver's foot we ll
Objects in the driver's foot we ll may impede
pedal tr avel or block a depressed pedal.
This jeopardises the operating and road saf ety
of theve hicle. #
Stow all objects in theve hicle securely
so that they cannot getinto the driver's
fo ot we ll. #
Always /t the 0oor mats securely and as
prescribed in order toensure that there
is alw ays su1cient room forth e pedals. #
Do not use loose 0oor mats and do not
place 0oor mats on top of one ano ther. &
W WARNING
ARNING Risk of accident due toincor-
re ct foot we ar
Incor rect foot we ar includes, forex ample:
R shoes with plat form soles R
shoes with high heels
R slippers
There is a risk of an accident. #
Alwayswe ar suitable foot we ar so that
yo u can operate the pedals safel y. &
W
WARNI NG
ARNI NGRisk of accident if theve hicle is
switched o. while driving
If yo u switch o. theve hicle while driving,
saf ety functions are restric ted or no longer
av ailable.
This may a.ect the po wer steering system and
th e brake forc e boosting, forex ample.
Yo u will need touse considerably more force
to steer and brake, forex ample. #
Do not switch o. theve hicle while driv-
ing. Driving and parking
169
169

Therefore, obser
vethefo llowing no tes:
R due tosalt build-up on the brake disks and
brakepads, the braking distance can increase
considerably or result in braking only on one
side
R maintain a much greater safe dis tance tothe
ve hicle in front
To remo vesalt build-up:
R brake occasionally while paying attention to
th e tra1c conditions
R carefully depress the brake pedal at the end of
th e journey and when starting the next jour-
ney
N No ot tes on aq
es on aq uaplaning
uaplaning
Aq uaplaning can take place once a cer tain
amount of water has accumulate d onthero ad
sur face.
Obser vethefo llowing no tes during heavy precipi-
ta tion or in conditions in whi chaquaplaning may
occur:
R reduce speed
R avoid tyre ruts R
avoid sudden steering mo vements
R brake careful ly
% Also obser vethe no tes on regula rly ch ecking
wheels and tyres (/ page 368).
N
No ot
tes on dr
es on dr iving t
iving thr
hrough w
ough w at
ater on t
er on t he r
he road sur-
oad sur-
f
f ace
ace
Wa ter which has entered into theve hicle can
damage the engine, electrics and transmission.
Wa ter can also enter the air intake of the engine
and cause engine damage.
Obser vethefo llowing if you must drive thro ugh
wa ter:
R The water,when calm, may only reach the
lo we r edge of theve hicle body.
R Drive at a maximum speed of 10 km/h; water
can otherwise enter theve hicle interior or
engine compartment.
R Vehicles tr avelling in front, or oncoming vehi-
cles, can create waves which may exceed the
maximum permissible dep thofthewa ter.
The braking e.ect of the brakes is reduced aTer
fo rd ing. Brake carefully while paying attention toth
e tra1c conditions until braking po wer has been
fully restored. EC EC
O st
O st ar
art/st
t/st op function
op function EC
EC
O st
O st ar
art/st
t/st op function
op function
% The ECO start/stop function is not available
in all drive prog rams, depending on the
engine. Obser vethe status display in the
inst rument display forth is.
If all vehicle- related conditions for an automatic
engine stop are met, the engine is switched o.
automaticall y:
R V
V ehicles wit
ehicles wit h manual tr
h manual tr ansmission:
ansmission: You brake
th eve hicle, shiT into neutral iwhen tr avel-
ling at a low speed and then release the clutch
pedal.
R V
Vehicles wit
ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: Yo u
brake theve hicle toa standstill in transmis-
sion position hori.
R You activate the HOLD function or engage
transmission position j.172
172
Driving and parking

%
Have workor repairs todecorative foils car-
ri ed out at a quali/ed specialist workshop,
e.g. in a Mercedes-Benz Se rvice Centre. N
No
ot
tes on car
es on car e of car par
e of car par ts
ts &
W
WARNING
ARNING Risk of entrapment if the wind-
screen wipers are switched on while the
windscreen is being cleaned
If th e windscreen wipers are set in motion
while you are cleaning the windscreen or
wiper blades, you can be trapped bythe wiper
arm. #
Always switch o. the windscreen wipers
and theve hicle before cleaning the wind-
screen or wiper blades. &
W
WARNING
ARNING Risk of burns from theta ilpipe
and tailpipe trims
The exhaust tailpipe and tailpipe trims can
become very hot. If you come into contact
with these parts of theve hicle, you could burn
yo urself. #
Always be particular lycareful around the
ta ilpipe and theta ilpipe trims and super-
vise children especially closely in this
area. #
Allow vehicle parts tocool down before
to uching them. To
avo id damage totheve hicle, obser vethe no tes
on cleaning and care of thefo llowing vehicle
parts:
Wheels and r Wheels and r ims
ims
R Use water and acid-free alloy wheel cleaners.
R Do not use acidic alloy wheel cleaners to
re mo vebrake dust. This could damage wheel
bolts and brake components.
R Toavo id cor rosion of the brake disks and
brakepads, drive theve hicle for a few minu tes
aTer cleaning before parking it. The brake
disks and brakepads warm up and dry out.
W W indo ws
indo ws
R Clean the windo wsinside and outside with a
damp clo thand with a cleaning agent recom-
mended for Mercedes-Benz. R
Do not use dry clo ths or abrasive or sol vent-
based cleaning agents toclean the inside of
windo ws.
% ATer changing the wiper blades or treating
th eve hicle with wax, clean the windscreen
th oroughly with cleaning agents recommen-
ded for Mercedes-Benz. Failure toobser vethe
application instructions may result in damage,
smear mar ksor dazzling spots.
% Remo veextern al fogging or dirt on the wind-
screen in front of the multifunction camera.
Otherwise, driving systems and driving saf ety
systems may be impaired or not available
(/ page 220).
W
W iper blades iper blades
R Movethe wiper arms into there placement
position (/ page 146).
R With th e wiper arms folded out, clean the
wiper blades with a damp clo th.
% Make sure that the wiper blades are coated.
The coating can lea veresidues on a clo th. Do
not rubth e wiper blades excessively or clean
th em too oTen. 342
342
Maintenance and care

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
J
Check brake fluid level *T
here is insu1cient brake 0uid in the brake 0uid reser voir. &
W
WARNING
ARNING Risk of an accident due tolow brake 0uid le vel
If th e brake 0uid le vel is too lo w,the braking e.ect and the braking characteristics may be impaired. #
Stop theve hicle as soon as possible, paying attention toroad and tra1c conditions. Do not continue driving. #
Consult a quali/ed specialist workshop. #
Do not top up the brake 0uid. Check brake pads See
Owner's Manual
*T
he brakepads ha vereached thewe ar limit. #
Consult a quali/ed specialist workshop. Dr Dr
iving syst
iving syst ems
ems Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences andM
MSolutions
Solutions
ë
Off *T
he HOLD function is deactivated because theve hicle is slipping or a condition for activation is not ful/lled. #
Reactivate the HOLD function later or check the activation conditions forth e HOLD function (/ page 225). Display messages and
warning/indicator lamps
447
447

Ad
aptive Highbeam Assist Plus cur-
re ntly una vailable See Owner's Manual ... 419
Ad aptive Highbeam Assist Plus inop-
erative.................................................. .419
Anti-theT alarm system Malfunction ....... 434
Apply brake todeselect Park (P) posi-
tion....................................................... .438
Apply brake toselect D or R ...................438
Apply brake toselect R .......................... 438
Au xiliary battery malfunction (red dis-
play message) ....................................... .442
Au xiliary battery malfunction (white
displ aymessage) .................................... 442
Beginning emer gency stop..................... 452
Blind Spot Assist cur rently una vailable
See Owner's Manual.............................. 453
Blind Spot Assist inoperative.................. 454
Blind Spot Assist not available when
to wing a trailer See Owner's Manual ...... 454Cann
otstart engine See Owner's
Manual................................................. .435
Charging fault Please change charging
me thod See Owner's Manual .................424
Charging me thod cur rently una vaila-
ble Please try again or change charg-
ing me thod............................................ 424
Check brake pads See Owner's Man-
ual........................................................ .447
Check tyre pressures then restart Run
Flat Indicator......................................... 470
Clutch overheated Avoid pulling away
until thewa rning goes out...................... 441
Cruise control and Limiter inoperative.... 448
Cruise control inoperative...................... 448
Cruise control o.................................... 449
Depress clutch fully tostart engine........ 441
Device de tected at diagnostics con-
nection See Owner's Manual................. .464 Drive system Malfunction
Stop Switch
engine o............................................... 437
Drive system Malfunction Visit work-
shop ...................................................... 437
Fr ont-passenger airbag disabled See
Owner's Manual .................................... .412
Fr ont-passenger airbag enabled See
Owner's Manual .................................... .413
Hazard warning lamps malfunctioning .... 420
Head-up display cur rently una vailable
See Owner's Manual.............................. 430
Head-up display inoperative ...................431
Limiter inoperative................................. 449
Limiter passive....................................... 449
N permanently active Risk of vehicle
ro lling....................................................4 39
Not possible tounlock charging cable
See Owner's Manual.............................. 423
Only elect ric drive available Power
limited................................................... 424 Index
503 503