2018 MERCEDES-BENZ A-CLASS HATCHBACK tyre pressure

Climate control
......................................... 141
Overview of climate contro l systems ........... 141
Operating the climate control sy stem ......... 14 2 Driving and pa
rking .................................. 151
Driving ........................................................ 151
DY NA MIC SELECT switch ............................1 60
Manual transmission .................................. 16 2
Au tomatic transmission .............................. 16 4
Re fuelling .................................................... 16 9
Pa rking ........................................................ 175
Driving and driving sa fety sy stems .............1 84
Tr ailer hit ch................................................. 24 2
Bicycle rack function .................................. 24 5
Ve hicle towing instructions ........................ .247 Instrument Display and on-board
compu ter.................................................. 248
Instrument display overview ...................... .248
Overview of the buttons on thesteering
wheel ..........................................................2 49
Operating the on-board computer .............. 250
Ad justing the design of the instrument
display ........................................................ 251 Showing display conte
nt onthe instru‐
ment clus ter ............................................... 252
Overview of displa yson the multifunc‐
tion display .................................................2 53
Ad justing the instrument lighting ............... 253
Menus and submenus ................................ 254
Head-up Display ......................................... 260 LINGU
ATRO NIC ......................................... 261
No tes on operating saf ety .......................... .261
Operation ....................................................2 61
Using LINGU ATRO NIC ef fectively ............... 264
Essential voice commands ........................ .265 MBUX multimedia sy
stem ...................... 280
Overview and operation .............................. 280
Sy stem settings ...........................................3 11
Fit & Healt hy............................................... 320
Na vigation .................................................. 324
Te lephone .................................................. .366
Online and Internet functions ..................... 396
Media ........................................................ .405
Ra dio ...........................................................4 12
Sound ......................................................... 41 5 Maintenance and care
.............................419
ASS YST PLUS service inter val display ........ .419
Engine compartment .................................. 420
Cleaning and care ....................................... 427 Breakdown assistance
............................436
Emergency ................................................. .436
Flat tyre ...................................................... 438
Battery (vehicle) ......................................... 444
To w- starting or towing away ....................... 449
Electrical fuses ........................................... 454 Wheels and tyres
..................................... 458
No tes on noise or unusual handling char‐
acteristics .................................................. .458
No tes on regular lyinspecting wheels and
tyres .......................................................... .458
No tes on snow chains ................................ 458
Ty re pressure .............................................. 459
Wheel change ............................................ .468
Emergency spa rewheel .............................. 477 Con
tents 3

1
! ABS malfunction →
549
2 #! Turn signal lights →
124
3 h Tyre pressure monitoring sy stem →
559
4 Speedome ter →
24 8
5 Multifunction display →
253
6 # Electrical fault →
557
7 · Distance warning →
555
8 J Brakes (red) →
549
9 J Brakes (yell ow) →
549
A ! Electric pa rking brake applied (red) →
549
B ! Electric pa rking brake (yellow) →
549
C % Diesel engine: preglow
D ; Engine diagnostics →
557 E
å ESP®
OFF →
549
÷ ESP®
→
549
F 6 Restra int sy stem →
31
G R Rear fog light →
12 3
H K High beam →
124
L Low beam →
12 2
T Standing lights →
12 2
I Fuel le vel display
J æ Fuelreser vewith fuel filler flap location
indicator →
557
K Ð Powe r-assis tedsteering malfunctioning →
555
L ü Seat belt not fastened →
554
M j Trailer hit chnot operational →
555 At
aglance – Warning and indicator lamps 9

1
Speedom eter →
24 8
2 #! Turn signal light →
124
3 j Trailer hit chnot operational →
555
4 Multifunction displ ay →
253
5 6 Restra int sy stem →
31
6 Rev counter →
24 8
7 å ESP®
OFF →
549
÷ ESP®
→
549
8 R Rear fog light →
12 3
9 K High beam →
124
L Low beam →
12 2
T Standing lights →
12 2
A ? Coolant too hot/cold →
557
B Coolant temp erature display →
24 8
C ! Electric pa rking brake (yellow) →
549 D
J Brakes (yell ow) →
549
E # Electrical fault →
557
F · Distance warning →
555
G ! ABS malfunction →
549
H Ð Powe r-assis tedsteering malfunctioning →
555
I h Tyre pressure monitoring sy stem →
559
J % Diesel engine: preglow
K æ Fuelreser vewith fuel filler flap location
indicator →
557
L Fuel le vel display
M ! Electric parking brake applied (red) →
549
N ü Seat belt not fastened →
554
O J Brakes (red) →
549
P ; Engine diagnostics →
557 At
aglance – Warning and indicator lamps 11

Pr
otection of the environment
+ ENVIRONMENTAL
NOTEEnvironmental
dama gedue tooperating conditions and
personal driving style The pollutant emission of
your vehicle is
directly related tothewa yyo u operate your
ve hicle.
Yo u can help toprotect the environment by
operating your vehicle in an environmentally-
re sponsible manner. Please obser vethefo l‐
lowing recommendations on ope rating condi‐
tions and pe rsonal driving style.
Operating conditions: #
make sure that the tyre pressure is cor‐
re ct. #
do not car ryany unnecessary weight
(e.g. roof luggage rack s once you no
lon ger need them). #
adhere tothe service inter vals.
a re gularly serviced vehicle will contri b‐
ute toenvironmen tal pr otection. #
always ha vemaintenance workcar ried
out at a qualified specialist workshop.
Pe rsonal driving style: #
do not depress the accelera tor pedal
when starting the engine. #
do not warm upthe engine while the
ve hicle is stationar y. #
drive carefully and maintain a suitable
distance from theve hicle in front. #
avoid frequent, sudden acceleration and
braking. #
change gear in good time and use each
ge ar on lyup toÔ of its maximum
engine speed. #
switch off the engine in stationary traf‐
fi c, e.g. byusing the ECO start/ stop
function. #
drive fuel-ef ficiently. Obser vethe ECO
display for a fuel-ef ficient driving style. Ta
ke -back of end-of-life vehicles
EU countries onl y:
Mercedes-Benz will take back your end-of-life
ve hicle for environment-friendly disposal in
accordance with the European Union(EU) End-
of-Life Vehicles Directive.
A network of vehicle take -ba ckpoints and dis‐
mantlers has been es tablished foryo uto return
yo ur vehicle. You can lea veit at any of these
points free of charge . This makes an impor tant
contribution toclosing there cycling circle and
conse rving resources.
Fo r fur ther information about there cycling and
disposal of end-of-li fevehicles, and theta ke-
back conditions, please visit the national
Mercedes-Benz website foryo ur count ry. 20
General no tes

yo
ur vehicle as well as on possible vehi‐
cle damage. QR code
forre scue card
The QR code is secured in the fuel filler flap and
on the opposite side on the B-pillar. In theeve nt
of an accident, rescue services can use the QR
code toquickly find the appropriate rescue card
fo ryo ur vehicle. The cur rent rescue card con‐
ta ins the most impor tant information about your
ve hicle in a compact form , e.g. thero uting of the
electric lines.
Fu rther information can be obtained at http://
www.mercedes-benz.de/qr-code. Data
storage Electronic control units
Elect
ronic control units are fitted in your vehicle.
Some of these are necessary forth e safe opera‐
tion of your vehicle, while some assist you when
driving (driver assis tance sy stems). In addition,
yo ur vehicle pr ovides com fort and enter tainment functions, which are also made possible
byelec‐
tronic control units.
Elect ronic control units contain da tamemories
which cantemp orarily or permanently store
te ch nical information about theve hicle's operat‐
ing state, component loads, main tenance
re qu irements and tech nical events or faults.
In general, this information documents thest ate
of a component part, a module, a sy stem or the
sur roundings such as:
R operating states of sy stem components (e.g.
fl uid le vels, battery status, tyre pressure)
R status messages concerning theve hicle or
its individual components (e.g. number of
wheel revo lutions/speed, decele ration in
mo vement, lateral accele ration, display of
fast ened seat belts)
R malfunctions or defects in impor tant sy stem
components (e.g. lights, brakes)
R information on events leading tovehicle
damage
R system reactions in special driving situations
(e.g. airbag deployment, inter vention of sta‐
bility control sy stems) R
ambient conditions (e.g. temp erature, rain
sensor)
In addition toprov iding the actual control unit
function, this data assists the manufacturer in
de tecting and rectifying faults and optimising
ve hicle functions. The majority of this data is
te mp orary and is only processed in theve hicle
itself. Only a small portion of the data is stored
in theeve nt or fault memor y.
When your vehicle is serviced, tech nical da ta
from theve hicle can be read out byservice net‐
wo rkemplo yees (e.g. workshops, manufactur‐
ers) or third parties (e.g. breakdown services).
Services include repair services, maintenance
processes, warranty cases and quality assurance
measures, forex ample. The read out is per‐
fo rm ed via the legally prescribed port forthe
diagnostics connection in theve hicle. The
re spective service network locations or third
parties collect, process and use the data. They
document tech nical statuses of theve hicle,
assist in finding faults and impr oving quality and
are transmit tedto the manufacturer, if neces‐
sar y.Fu rthermore, the manufacturer is subject General no
tes27

R
afte rev ery vehicle start, the engine runs for
te n minu tes.
R you can car ryout a maximum of two consec‐
utive starting attem pts. The vehicle must be
st ar ted once with theke y before trying to
st art theve hicle again with the smartphone.
R you can stop theve hicle again at any time.
R further information can be found in the
smartphone app.
Securing the engine against starting before
car rying out maintenance or repair work: #
switch on the hazard warning lights.
or #
unlock the doors.
or #
open a side window or the sliding sunroof. Ru
nning-in no tes To
preser vethe engine during thefirs t1, 500 km:
R drive at varying road speeds and engine
speeds. R
drive theve hicle in drive program A
or ;.
R change gear before there v counter needle is
Ô ofthewa yto there d area of there v coun‐
te r.
R do not shift down a gear manually in order to
brake.
R avoidoverstra ining theve hicle, e.g. driving at
full thro ttle.
R vehicles with automatic transmission: do
not depress the accelera tor pedal be yond the
pressure point (kickdown).
R only increase the engine speed gradually and
accelera tetheve hicle tofull speed af ter
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 sensor sy stem adjusts automatically
while a cer tain dis tance is driven af terthe
ve hicle has been delivered or af terre pairs. Fu
ll sy stem ef fectiveness is not achie ved
until the end of this teach-in process.
R brakepads, brake discs and tyres that are
either new or ha vebeen replaced only ach‐
ie ve optimum braking ef fect and grip af ter
se veral hundred kilom etre s of driving. Com‐
pensate forth ere duced braking ef fect by
applying greater forc eto the brake pedal. Note
s on driving &
WARNING Risk of accident due to
objects in the driver's foot we ll
Objects in the driver's foot we ll may impede
pedal tra vel 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. #
Alw aysfit th efloor mats securely and
as prescribed in order toensure that 15 6
Driving and pa rking

4
Tyre pressure table
5 QR code forre scue card #
Press on the back area of fuel filler flap 1. #
Turn the fuel filler cap anti-clockwise and
re mo veit. #
Insert the fuel filler cap into brac ket2. #
Comp lete ly inse rtthe pump nozzle into the
ta nk filler nec k,hook in place and refuel. #
Only fill th e fuel tank until the pump nozzle
switches off.
% Vehicles with a diesel engine: theta nk
fi ller neck is designed forre fuelling at diesel
fi lling pumps.
% Vehicles with a diesel engine: whenthe
fuel tank is compl etely em pty, top up with at
least 5 litres of diesel.
% Vehicles with a diesel engine: use afiller
neck with a lar gediame terfo rve hicles with
a diesel engine when topping up fuel from a
fuel can. Otherwise, thefiller neck cannot
slide into theta nk. #
Replace the cap on thefiller neck and turn
clockwise until it engages audibl y. #
Close the fuel filler flap. Ad
Blue ®
(diesel engine vehicles only) Note
s onrefilling AdBlue ®
* NOTEWhen you open theAd Blue ®
tank,
small amounts of ammonia vapour may
escape. #
Only fill th eAd Blue ®
tank in well-venti‐
lated areas. #
Do not let AdBlue ®
come into contact
wi th skin, eyes or clo thes. #
Keep AdBlue ®
aw ay from children. *
NOTEDo not ingest AdBlue ®
. If
Ad Blue ®
is swallo wed: #
Immediately rinse out your mouth thor‐
oughl y. #
Drink plenty of water. #
Seek medical attention immediately. Obser
vethe no tes on operating fluids
(→ page 485).
Ad Blue ®
is a wate r-soluble fluid forth e NOx
ex haust gas af tertre atment of diesel engines. In
order forth eex haust gas af tertre atment tofunc‐
tion proper ly, only use AdBlue ®
in acco rdance
with ISO 22 241.
Ad Blue ®
is ch aracterised bythefo llowing:
R non-t oxic
R colourless and odourless
R non-flammable
Ad Blue ®
is available here:
R AdBlue ®
may be topped up byfast service at
a qu alified specialist workshop, e.g. a
Mercedes-Benz Service Centre.
R AdBlue ®
is available at many filling stations
from AdBlue ®
filling pumps. 17 2
Driving and pa rking

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