fuel pressure MERCEDES-BENZ A-CLASS HATCHBACK 2018 Owners Manual

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

#
Toactivate: pullsteering wheel gearshift
paddle 1or2.
Manual gearshifting is activated for a short
time. The cur rent gear is displa yed in the
multifunction displa y.
% How long the manual gearshifting stay s acti‐
va ted is dependant on the driving style. #
Toshift up: pullsteering wheel gearshift
paddle 2. #
Toshift down: pullsteering wheel gearshift
paddle 1.
If yo u pull and hold thesteering wheel gear‐
shift paddle 1,the transmission shifts to
th e lo west possible gear. #
Todeactivate: pullsteering wheel gearshift
paddle 2and hold it in place.
The transmission position happears in the
multifunction displa y.
% Ifyo u select theManual drive setting in
drive prog ram =, manual gearshifting is
permanent lyactivated. Gea
rshift recommendation The
gearshift recommendation assists you in
adopting an economical driving style. #
Ifge arshift recommendation message 1is
shown on the multifunction displa y,shift to
th ere commended gear. Using kickd
own #
Maximum acceleration: depressthe accel‐
erator pedal be yond the pressure point. The automatic transmission shifts up
tothe next
ge ar when the maximum engine speed is
re ached toprotect the engine from overrev ving. Glide mode function
Wi
th an anticipatory driving style, Glide mode
helps youto reduce fuel consum ption.
Glide mode is characterised bythefo llowing:
R the combustion engine is disconnected from
th e driv etra in and the engine continues to
ru n in idle.
R the transmission position his displa yed in
green in the multifunction displa y.
Glide mode is activated if thefo llowing condi‐
tions are me t:
R drive program ;is selected.
R the speed is within a suitable range.
R thero ad's course is suitable, e.g. no steep
uphill or downhill inclines or tight bends.
R there is no trailer coupled tothe trailer hitch,
and no bicycle rack fitted. Driving and pa
rking 167

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

#
Turn brightness control 1up or down.
The lighting of the instrument display and in
th e control elements of theve hicle interior is
adjus ted. Menus and submenus
Fu
nctions on the service menu of the on-
board compu terOn-board computer:
, Service #
Toselect the function: swipe upwards or
down wards on the left-hand Touch Control. #
Press the left-hand Touch Control.
Fu nctions on theService menu:
R Message memory (→ page 498)
R AdBlue :Ad blue ®
ra nge and fill le vel
R Tyres:
- Restart the tyre pressure loss warning
sy stem (→ page 467) -
Check the tyre pressure with the tyre
pressure monitoring sy stem
(→ page 461)
- Restart the tyre pressure monitoring sys‐
te m (→ page 462)
R ASSYST PLUS : calls upthe service due date
(→ page 419)
R Coolant: coolant temp erature display
R Engine oil level: engine oil le vel
R Consumption info: fuel life cycle consump‐
tion Calling up
the assistant display On-board computer:
, Assistance
The following displa ysare available on the assis‐
ta nt displ aymenu:
R Assis tant displ ay
R Attention le vel (→ page 231)
R Full-sur face menu displ ay #
Toswitch between the displa ys:swipe
upwards or down wards on the left-hand
To uch Control. St
atus displa yson the assis tant displ ay:
R é ATTENTION ASSIS T:deactivated
R ¸ Grey radar waves next tovehicle: Blind
Spot Assist or Active Blind Spot Assi stena‐
bled
R ¸ Green radar waves next tovehicle:
Blind Spot Assist or Active Blind Spot Assi st
active
R DISTRO NICActive Dis tance Assi stdispla ys
( → page 200) 254
Instrument Display and on-board computer

#
Cor rect the tyre pressure if it is still at least
13 0 kPa (1.3 bar/19 psi). See the tyre pres‐
sure table on the fuel filler flap forva lues. #
Toincrease the ty repressure: switch on
th e tyre inflation compressor. #
Toreduce the tyre pressure: press pres‐
su re re lease button 1next tomanome ter
2 . #
When the tyre pressure is cor rect, unscr ew
th efilling hose from theva lve of the sealed
tyre. #
Screw theva lve cap onto theva lve of the
sealed tyre. #
Pull the tyre sealant bottle out of the tyre
inflation compressor.
The filling hose stay s on the tyre sealant bot‐
tle. #
Drive tothe nearest qualified specialist work‐
shop and ha vethe tyre, tyre sealant bottle
and filling hose replaced there. Batte
ry(vehicle) Note
s onthe12 V battery &
WARNING Risk of an accident due to
wo rkcar ried out incor rectly on the bat‐
te ry
Wo rkcar ried out incor rectly on the battery
can, forex ample, lead toa short circuit. This
can lead tofunction restrictions in saf ety-re l‐
eva nt sy stems, e.g. the lighting sy stem, ABS
(anti-lock braking sy stem) or ESP ®
(Elec‐
tronic Stability Prog ram). The operating
saf ety of your vehicle may be restricted. Yo
u could lose cont rol of theve hicle in the
fo llowing situations:
R when braking
R intheeve nt of ab rupt steering manoeu‐
vres and/or when theve hicle's speed is
not adap tedto thero ad conditions #
Intheeve nt of a sho rtcircuit or a simi‐
lar incident, contact a qualified special‐
ist workshop immediately. #
Do not continue driving. #
Alw ays ha vewo rkon the battery car ried
out at a qualified specialist workshop. R
Further information on ABS (→ page185)
R Further information on ESP ®
(→ page 186)
Fo r saf etyre asons, Mercedes-Benz recommends
th at you on lyuse bat teries which ha vebeen tes‐
te d and appr ovedfo ryo ur vehicle byMercedes-
Benz. These batteries pr ovide inc reased impact
pr otection toprev ent vehicle occupants from
suf fering acid bu rns should the battery be dam‐
aged in theeve nt of an accident. 444
Breakdown assis tance

#
Check whe ther the wheel or valve has a
leak. #
Ifyo u are unable torectify the damage,
conta ct aqualified specialist workshop. Information on
there commended tyre pressure
fo rth eve hicle's factor y-fitted tyres can be found
on the tyre pressure table on the inside of the
fuel filler flap (→ page 460).
Use a suitable pressure gauge tocheck the tyre
pressure. The outer appearance of a tyre does
not permit any reliable conclusion about the tyre
pressure.
Ve hicles with a tyre pressure monitoring sys‐
te m: you can also check the tyre pressure using
th e on-board computer.
Only cor rect tyre pressures when the tyres are
cold. Conditions for cold tyres:
R The vehicle has been par ked with the tyres
out of direct sunlight for at least thre e hours.
R The vehicle has tr avelled less than 1.6 km.
A rise in the tyre temp erature of 10°C increases
th e tyre pressure byappr ox.10 kPa (0.1 bar/ 1.
5 psi). Take this into account when checking
th e tyre pressure of warm tyres.
Tr ailer operation no tes
Alw ays inflate there ar axle tyres tothere com‐
mended tyre pressures on the tyre pressure
ta ble for increased load. Ty
re pressure table The tyre pressure
table is on the inside of the
fuel filler flap. The tyre pressure
table sho ws there commended
tyre pressure for all tyres appro vedfo rth is vehi‐
cle. The recommended tyre pressures apply for
cold tyres under various operating conditions,
i.e. loading and/or speed of theve hicle.
If one or more tyre sizes precede a tyre pres‐
sure, the tyre pressure information following is
only valid forth ose tyre sizes. 460
Wheels and tyres