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

Climate control
........................................ 14 5
Overview of climate contro l systems ..........1 45
Operating the climate control sy stem ......... 14 6 Driving and pa
rking ................................. 15 5
Driving ........................................................ 15 5
DY NA MIC SELECT switch ............................1 64
Manual transmission ................................... 167
Au tomatic transmission .............................. 16 9
Re fuelling .................................................... 174
Pa rking ...................................................... .180
Driving and driving saf ety sy stems .............1 89
Tr ailer hit ch................................................. 24 8
Bicycle rack function ................................... 251
Ve hicle towing instructions ........................ .253 Instrument Display and on-board
comp uter.................................................. 254
Instrument display overview ...................... .254
Overview of the buttons on thesteering
wheel ..........................................................2 55
Operating the on-board computer .............. 256
Ad justing the design of the instrument
display ........................................................ 257 Showing display conte
nt onthe instru‐
ment clus ter ............................................... 258
Overview of displa yson the multifunc‐
tion display .................................................2 59
Ad justing the instrument lighting ............... 260
Menus and submenus ................................ 260
Head-up Display ......................................... 267 LINGU
ATRO NIC ........................................ 268
No tes on operating saf ety .......................... 268
Ope ration ................................................... 268
Using LINGU ATRO NIC ef fectively ................ 271
Essential voice commands .......................... 272 MBUX multimedia sy
stem ....................... 287
Overview and operation .............................. 287
Sy stem settings .......................................... 318
Fit & Healt hy............................................... 328
Na vigation .................................................. 333
Te lephone .................................................. .375
Online and Internet functions ..................... 405
Media ..........................................................4 14
Ra dio .......................................................... 422
Sound .........................................................4 25 Maintenance and care
.............................429
ASS YST PLUS service inter val display ........ 429
Engine compartment .................................. 430
Cleaning and care ...................................... .436 Breakdown assi
stance ............................ 446
Emergency ................................................. 446
Flat tyre ...................................................... 448
Battery (vehicle) ......................................... 455
To w- starting or towing away ....................... 460
Electrical fuses ........................................... 465 Wheels and tyres
..................................... 469
No tes on noise or unusual handling char‐
acteristics .................................................. .469
No tes on regular lyinspecting wheels and
tyres .......................................................... .469
No tes on snow chains ................................ 469
Ty re pressure .............................................. 470
Wheel change ............................................ .479
Emergency spa rewheel .............................. 489 Contents
3

1
! ABS malfunction →
562
2 #! Turn signal indicators →
12 9
3 h Tyre pressure monitor →
571
4 Speedom eter →
254
5 Multifunction display →
259
6 # Electrical fault →
568
7 L Distance warning →
568
8 J Brakes (red) →
562
9 J Brakes (yellow) →
562
A ! Electric parking brake applied (red) →
562
B ! Electric parking brake (yellow) →
562
C % Diesel engine: preglow
D ; Engine diagno stics →
568 E
å ESP®
OFF →
562
÷ ESP®
→
562
F 6 Restra int sy stem →
33
G R Rear fog light →
12 8
H K High beam →
12 9
L Low beam →
127
T Standing lights →
127
I Fuel le vel display
J æ Fuelreser vewith fuel filler cap location
indicator →
568
K Ð Powe r-assis tedsteering malfunction →
572
L ü Seat belt not fastened →
567
M ï Trailer hit chnot operational →
572 At
aglance – Indicator and warning lamps 11

1
Speedom eter →
254
2 #! Turn signal indicators →
12 9
3 ï Trailer hit chnot operational →
572
4 Multifunction display →
259
5 6 Restra int sy stem →
33
6 Rev counter →
254
7 å ESP®
OFF →
562
÷ ESP®
→
562
8 R Rear fog light →
12 8
9 K High beam →
12 9
L Low beam →
127
T Standing lights →
127
A ? Coolant too hot/cold →
568
B Coolant temp erature display →
254
C ! Electric pa rking brake (yellow) →
562 D
J Brakes (yellow) →
562
E # Electrical fault →
568
F L Distance warning →
568
G ! ABS malfunction →
562
H Ð Powe r-assis tedsteering malfunction →
572
I h Tyre pressure monitor →
571
J % Diesel engine: preglow
K æ Fuelreser vewith fuel filler cap location
indicator →
568
L Fuel le vel display
M ! Electric parking brake applied (red) →
562
N ü Seat belt not fastened →
567
O J Brakes (red) →
562
P ; Engine diagnostics →
568 At
aglance – Indicator and warning lamps 13

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.
Help toprotect the environment byoperating
yo ur vehicle in an environmentally responsi‐
ble manner. Please obser vethefo llowing rec‐
ommendations on ope rating conditions 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 regularly serviced vehicle will contri b‐
ute toenvironmen tal pr otection. #
Alw ays 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
di st ance 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. 22
General no tes

Implied
warranty
* NO
TEDama getotheve hicle arising
from violation of these operating instruc‐
tions. Damage
totheve hicle can arise from viola‐
tion of these operating instructions.
This damage is not co vered either bythe
Mercedes-Benz implied warranty or bythe
New‑ or Used- Vehicle Warrant y. #
Follow the instructions in these operat‐
ing instructions on proper operation of
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 status of sy stem components (e.g.
fi ll le vels, battery status, tyre pressure)
R status messages concerning theve hicle or
its individual components (e.g. number of
wheel revo lutions/speed, longitudinal accel‐
eration, lateral acceleration, display of fas‐
te ned seat belts)
R malfunctions or faults 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 General no
tes29

#
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.
Pe rm anent setting: #
Change todrive prog ram
= (/ page165). #
Select drive program Manual
(/ page166). Gearshift
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 neutral.
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. 17 2
Driving and pa rking

1
Fuelfiller flap
2 Brac ketfo rth e fuel filler cap
3 Fuel type
4 Tyre pressure table
5 QR code forre scue card #
Press on there ar 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 ®
(vehicles with a diesel engine on ly) 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 496). Driving and parking
17 7

&
WARNING Risk of accident from driving
wi th sealed tyres
A tyre temp orarily sealed with tyre sealant
impairs driving characteristics and is not
suitable for higher speeds. #
Adapt your driving style according lyand
drive carefull y. #
Do not exceed the maximum speed
limit with a tyre that has been repaired
using tyre sealant. #
Obser vethe maximum permissible speed for
a tyre sealed with tyre sealant 80 km/h. #
The sticke r with de tails of the maximum per‐
missible speed must be af fixe dto the instru‐
ment clus ter where it can be easi lyseen by
th e driver.
* NO
TEStaining from leaking tyre sealant Af
ter use, excess tyre sealant may leak out
from thefilling hose. #
Therefore, place thefilling hose in the
plastic bag that con tained the TIREFIT
kit. +
ENVIRONMEN
TALNO TEEnvironmental
pollution caused byenvironmen tally ir re‐
sponsible disposal Ty
re sealant contains polluta nts. #
Have the tyre sealant bottle disposed of
professionall y,e.g. at a Mercedes-Benz
Service Centre. #
Stow th e tyre sealant bottle, the tyre inflation
compressor and thewa rning triangle. #
Pull away immediatel y. #
Stop driving af ter appro ximately ten minu tes
and check the tyre pressure using the tyre
inflation compressor.
The tyre pressure must now be at least
13 0 kPa (1.3 bar/19 psi). &
WARNING Risk of accident due tothe
specified tyre pressure not being ach‐
ie ved
If th e specified tyre pressure is not achie ved
af te r a brief drive, the tyre is too badly dam‐
aged. The tyre sealant cannot repair the tyre
in this ins tance.
Dama ged tyres and a tyre pressure that is
to o low can significantly impair braking and
handling characteristics. #
Do not drive on. #
Consult a qualified specialist workshop. Countries
that ha veMercedes-Benz
Service24h: you will find a sticke r with thete le‐
phone number, e.g. on the B‑pillar on the driver's
side. #
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. 454
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 (/ page471).
Use a sui table 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 th ree 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. Wheels and tyres
471

If
th e preceding tyre sizes are complemented by
th e+ symbol, the tyre pressure information
fo llowing sho wsalternative tyre pressures.
These tyre pressures may impr oveyour vehicle's
ri de comfort. Fuel consum ption may then
increase slightl y.
The load conditions "partially laden" and "fully
laden" are defined in theta ble for dif fere nt num‐
be rs of passengers and amounts of luggage. The
actual number of seats may dif fer from this.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (/ page470) Ty
re pressure moni toring sy stem Fu
nction of the ty repressure moni toring sys‐
tem
The sy stem checks the tyre pressure and the
tyre temp erature of the tyres fitted totheve hicle
by means of a tyre pressu resensor.
New tyre pressure sensors, e.g. in winter tyres,
are automatically taught-in during thefirs t jour‐
ney they are used. The tyre pressure and
the tyre temp erature
appear in the multifunction display
(/ page472).
If th ere is a subs tantial pressure loss or if the
tyre temp erature is excessive, you will be
wa rned in thefo llowing ways:
R via display messa ges (/ page545)
R viatheh warning lamp in the instrument
clus ter (/ page571)
The tyre pressu remonitoring sy stem is only an
aid. It is the driver's responsibility toset the tyre
pressure tothere commended cold tyre pressure
suitable forth e operating situation. Set the tyre
pressure for cold tyres using a tyre pressu re
ga uge. Notethat the cor rect tyre pressure for
th e cur rent operating situation mu stfirs t be
ta ught-in tothe tyre pressure monitoring sys‐
te m.
In most cases, the tyre pressure monitoring sys‐
te m will auto matically update the new refere nce
va lues af teryo u ha vechanged the tyre pressure.
Yo u can, ho wever,also update there fere nce val‐
ues byrestarting the tyre pressure monitoring
sy stem manually (/ page473). Sy
stem limitations
The sy stem may be impaired or may not function
in thefo llowing situations:
R ifth e tyre pressure is set incor rectly
R ifth ere is a sudden pressure loss caused, for
ex ample, byafo re ign object penetrating the
tyre
R ifth ere is a malfunction caused byano ther
ra dio signal source
Make sure toobser vethefo llowing fur ther rela‐
te d subjec t:
R notes on tyre pressure (/ page470)
Checking the ty repressure with the tyre
pressure moni toring sy stem
Re quirements:
R The ignition is switched on.
On-board computer: 4 Service 5
Tyres
One of thefo llowing displa ysappears:
R Cur rent tyre pressure and tyre temp erature
of the individual wheels: 472
Wheels and tyres