MERCEDES-BENZ A-CLASS HATCHBACK 2012 Owners Manual

X
Position jack ?at jacking point =. X
Make sure that the base of the jack is posi-
tioned vertically under the jacking point.
X Turn ratchet ring spanner Auntil jack ?
sits completely on jacking point =and the
base of the jack lies evenly on the ground.
X Turn ratchet ring spanner Auntil the tyre
is raised a maximum of 3 cm from the
ground.
Removing a wheel !
Do not place wheel bolts in sand or dirt.
The threads of the wheel bolts and wheel
hubs could otherwise be damaged when
the bolts are tightened.
X Unscrew the wheel bolts.
X Remove the wheel.
Fitting a new wheel G
WARNING
Oiled or greased wheel bolts or damaged
wheel bolts/hub threads can cause the wheel bolts to come loose. As a result, you could
lose a wheel while driving. There is a risk of
accident.
Never oil or grease wheel bolts. In the event of damage to the threads, contact a qualified
specialist workshop immediately. Have the
damaged wheel bolts or hub threads
replaced/renewed. Do not continue driving. G
WARNING
If you tighten the wheel bolts or wheel nuts
when the vehicle is raised, the jack could tip
over. There is a risk of injury.
Only tighten the wheel bolts or wheel nuts
when the vehicle is on the ground.
Always pay attention to the instructions and
safety notices in "Changing a wheel"
(Y page 324).
Only use wheel bolts that have been designed
for the wheel and the vehicle. For safety rea-
sons, Mercedes-Benz recommends that you
only use wheel bolts which have been
approved for Mercedes-Benz vehicles and the
respective wheel. X
Clean the wheel and wheel hub contact
surfaces.
X Place the new wheel on the wheel hub and
push it on.
X Tighten the wheel bolts until they are fin-
ger-tight. 328
Changing a wheelWheels and tyres

Lowering the vehicle
G
WARNING
The wheels could work loose if the wheel nuts and bolts are not tightened to the specified
tightening torque. There is a risk of accident.
Have the tightening torque immediately
checked at a qualified specialist workshop
after a wheel is changed. X
Place the ratchet ring spanner onto the
hexagon nut of the jack so that the letters
AB are visible.
X Turn the ratchet ring spanner until the vehi-
cle is once again standing firmly on the
ground.
X Place the jack to one side.
X Tighten the wheel bolts evenly in a cross-
wise pattern in the sequence indicated ( :
to A). The tightening torque must be
130 Nm .
X Turn the jack back to its initial position.
X Stow the jack and the rest of the vehicle
tools in the vehicle again.
X Vehicles with AMG equipment: insert the
cover into the outer sill.
X Check the air pressure of the newly fitted
wheel and adjust accordingly.
Observe the recommended tyre pressure
(Y page 321). Wheel and tyre combinations
General notes
! For safety reasons, Mercedes-Benz rec-
ommends that you only use tyres and
wheels which have been approved by
Mercedes-Benz specifically for your vehi-
cle.
These are specially adapted to the control
systems, such as ABS or ESP ®
and are
marked as follows:
R MO = Mercedes-Benz Original
R MOE = Mercedes-Benz Original Extended
(tyres featuring run-flat characteristics)
R MO1 = Mercedes-Benz Original (only cer-
tain AMG tyres)
Mercedes-Benz Original Extended tyres
may only be used on wheels that have been
specifically approved by Mercedes-Benz.
Only use tyres, wheels or accessories tes-
ted and approved by Mercedes-Benz. Cer-
tain characteristics, e.g. handling, vehicle
noise emissions or fuel consumption, may
otherwise be adversely affected. In addi-
tion, when driving with a load, tyre dimen-
sion variations could cause the tyres to
come into contact with the bodywork and
axle components. This could result in dam- age to the tyres or the vehicle.
Mercedes-Benz accepts no liability for
damage resulting from the use of tyres,
wheels or accessories other than those tes- ted and approved.
Further information about wheels, tyres
and approved combinations can be
obtained from any qualified specialist
workshop.
! Retreaded tyres are neither tested nor
recommended by Mercedes-Benz, since
previous damage cannot always be detec-
ted on retreaded tyres. As a result,
Mercedes-Benz cannot guarantee vehicle
safety if retreaded tyres are fitted. Do not fit
used tyres if you have no information about their previous usage. Wheel and tyre combinations
329Wheels and tyres Z

!
Large wheels: the lower the section width
for a certain wheel size, the lower the ride
comfort is on poor road surfaces. Roll com-
fort and suspension comfort are reduced
and the risk of damage to the wheels and
tyres as a result of driving over obstacles
increases.
Overview of abbreviations used in the follow- ing tyre tables:
R BA: both axles
R FA: front axle
R RA: rear axle
You will find a table with recommended tyre
pressures for various operating conditions on
the inside of your vehicle's fuel filler flap. For
further information on tyre pressure, see
(Y page 321). Check tyre pressures regularly
and only when the tyres are cold.
Notes on the vehicle equipment – always fit
the vehicle:
R with tyres of the same size on a given axle
(left/right)
R with the same type of tyres at a given time
(summer tyres, winter tyres, MOExtended
tyres)
Exception: it is permissible to fit a different
type or make in the event of a flat tyre.
Observe the "MOExtended tyres (tyres with
run-flat characteristics)" section
(Y page 300).
Vehicles with MOExtended tyres are not
equipped with a TIREFIT kit at the factory. It is
therefore recommended that you additionally equip your vehicle with a TIREFIT kit if you fit tyres that do not feature run-flat characteris-
tics, e.g. winter tyres. A TIREFIT kit can be
obtained from a qualified specialist work-
shop. In the following table, the wheel/tyre combi-
nations are allocated to the vehicle models
through variants, e.g. V1, V2 etc.: V1
A 180
12 V2
A 180 CDI
12 V3
A 200
12
, A 220 CDI 12 V4
A 200 CDI
12 V5
A 250
12 V6 A 250 Sport
V7 A 45 AMG 4MATIC
i
Not all wheel/tyre combinations can be
fitted at the factory in all countries.
12 BlueEFFICIENCY 330
Wheel and tyre combinationsWheels and tyres

Tyres
Summer tyres Light-alloy wheels V
1 V
2 V
3 V
4 V
5 V
6 V
7 BA 195/65 R15 91 T 6.5 J x 15 H2 ET 47 — #
— — — — —
BA
195/6
5 R15 91 H 13 6.5 J
x 15 H2 ET 47 #
— — — — — —
BA 205/55 R16 91 H 6.5 J x 16 H2 ET 49 # #
— #
— — —
BA
205/55 R16 91 V
14 6.5 J x 16 H2 ET 49 # # # #
— — —
BA 205/55 R16 91 V
MOExtended
14, 15 6.5 J x 16 H2 ET 49 # # # #
— — —
BA
225/45 R17 91 V
14, 16 7.5 J x 17 H2 ET 52.5 # # # # #
— —
BA 225/45 R17 91 W
MOExtended
14, 15, 16 7.5 J x 17 H2 ET 52.5 # # # # #
— —
BA 225/40 R18 92 W XL
MOExtended
14, 15, 16, 17 7.5 J x 18 H2 ET 52 # # # # #
— —
BA
235/40 ZR18 95 Y XL
16 8.0 J x 18 H2 ET 48 — — — — — # #
BA
235/35 ZR19 91 Y XL
16 8.0 J x 19 H2 ET 48 — — — — — — #
Winter tyres Light-alloy wheels V
1 V
2 V
3 V
4 V
5 V
6 V
7 BA 195/65 R15 91 T
M+S
i 13 6.5 J x 15 H2 ET 47 # #
— — — — —
BA 205/55 R16 91 H
M+S
i 14 6.5 J x 16 H2 ET 49 # # # #
— — —
BA 205/55 R16 91 H
M+S
iMOExtended 14, 15 6.5 J x 16 H2 ET 49 # # # #
— — —
BA 205/50 R17 93 H XL
M+S
i 6.5 J x 17 H2 ET 49 # # # # # #
—
BA 205/50 R17 93 H XL
M+S
iMOExtended 14, 15 6.5 J x 17 H2 ET 49 # # # # # #
—
13
A 180 BlueEFFICIENCY: only for vehicles with 15" tyres fitted at the factory.
14 A 250 BlueEFFICIENCY: not in conjunction with Sports Edition package (code P84).
15 MOExtended tyres (tyres featuring run-flat characteristics) only in combination with an activated tyre pres-
sure loss warning system.
16 Use of snow chains not permitted. Observe the notes in the "Snow chains" section.
17 Observe notes on "Large wheels" in the "Wheel/tyre combinations" section. Wheel and tyre combinations
331Wheels and tyres Z

Winter tyres Light-alloy wheels V
1 V
2 V
3 V
4 V
5 V
6 V
7 BA 215/45 R18 93 V XL
M+Si 7.5 J x 18 H2 ET 42 — — — — — — #
BA 235/40 R18 95 V XL
M+Si
16 8.0 J x 18 H2 ET 48 — — — — — — #
Emergency spare wheel
Important safety notes
G
WARNING
The wheel/tyre dimensions and the tyre type of the spare wheel/emergency spare wheel
and the wheel to be replaced may differ. Fit-
ting a spare wheel/emergency spare wheel
may severely impair the driving characteris-
tics. There is a risk of accident.
To prevent hazardous situations:
R Adapt your driving style accordingly and
drive carefully.
R Never fit more than one spare wheel/emer-
gency spare wheel if the dimensions are
different to those of the wheel being
replaced.
R Only use a spare wheel/emergency spare
wheel briefly if the dimensions are different
to those of the wheel being replaced.
R Do not switch off ESP ®
.
R Have the spare wheel/emergency spare
wheel in question replaced at the nearest
qualified specialist workshop. Make sure
that the wheel/tyre dimensions and tyre
type are correct.
When using an emergency spare wheel or
spare wheel of a different size, you must not
exceed the maximum speed of 80 km/h.
Snow chains must not be fitted to emergency
spare wheels. General notes
You should regularly check the pressure of
the emergency spare wheel, particularly prior
to long trips, and correct the pressure as nec- essary (Y page 321). The value on the wheel
or as given in the "Technical data" section
(Y page 329) is valid.
i When you are driving with the emergency
spare wheel fitted, the tyre pressure loss
warning system cannot function reliably.
Only restart the tyre pressure loss warning
system when the defective wheel has been replaced with a new wheel.
An emergency spare wheel may also be fitted against the direction of rotation. Observe the
time restriction on use as well as the speed
limitation specified on the emergency spare
wheel.
Replace the tyres after six years at the latest,
regardless of wear. This also applies to the
emergency spare wheel. Removing the emergency spare wheel
16
Use of snow chains not permitted. Observe the notes in the "Snow chains" section. 332
Emergency spare wheelWheels and tyres

X
Open the tailgate.
X Loosen lashing straps ;on emergency
spare wheel bag :.
X Remove emergency spare wheel bag :
with the "Minispare" emergency spare
wheel.
For further information on changing and fit-
ting a wheel, see (Y page 325). Technical data
"Minispare" emer-
gency spare wheel
Tyres Steel wheel
T 125/80 R17 99 M
Tyre pressure: 420 kPa
(4.2 bar/61 psi) 3.5 B x 17 H2
ET 19.5 Emergency spare wheel
333Wheels and tyres Z

334

Useful information
............................336
Information on technical data .........336
Vehicle electronics ...........................336
Identification plates .........................338
Service products and capacities .....338
Vehicle data ...................................... 346
Trailer tow hitch ................................ 348
24 GHz radar sensor system (coun-
try overview) ..................................... 350 335Technical data

Useful information
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos- sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page 24). Information on technical data
You can find technical data on the Internet at: http://www.mercedes-benz.com
i The technical data was determined in
accordance with EC Directives. All data
applies to the vehicle's standard equip-
ment. It may therefore differ for vehicles
with optional equipment. You can obtain
further information from a Mercedes-Benz
Service Centre. Vehicle electronics
Tampering with the engine electron-
ics
! Only have work carried out on the engine
electronics and its associated parts, such
as control units, sensors and connector
leads, at a qualified specialist workshop.
Vehicle components may otherwise wear
more quickly and the vehicle's operating
permit may be invalidated. Retrofitting two-way radios and
mobile phones (RF transmitters)
G
WARNING
If RF transmitters are tampered with or not
properly retrofitted, the electromagnetic radi- ation they emit can interfere with the vehicle
electronics. This may jeopardise the opera-
tional safety of the vehicle. There is a risk of an accident.
You should have all work on electrical and
electronic components carried out at a quali-
fied specialist workshop. G
WARNING
If you use the RF transmitter in the vehicle in
an improper way, its electromagnetic radia-
tion can disrupt vehicle electronics, e.g. if:
R the RF transmitter is not connected to an
exterior aerial
R the exterior aerial is fitted incorrectly or is
not a low-reflection aerial
This can jeopardise the operating safety of the vehicle. There is a risk of an accident.
Have the low-reflection exterior aerial fitted at
a qualified specialist workshop. When oper-
ating in the vehicle, always connect the RF
transmitter to the low-reflection exterior aer-
ial.
! The operating permit may be invalidated if
the instructions for installation and use of
RF transmitters are not observed.
In particular, the following conditions must be complied with:
R only approved wavebands may be used.
R observe the maximum permissible out-
put in these wavebands.
R only approved aerial positions may be
used.
Observe the notes on operating mobile
phones (Y page 279).
The following aerial positions may be used for
the correct installation of RF transmitters: 336
Vehicle electronicsTechnical data

Approved aerial positions
:
Front roof area
; Rear roof area
= Rear wing
i On vehicles with panorama sliding sun-
roof, fitting an aerial to the front roof area is not permitted.
On the rear wing, it is recommended that
you position the aerial on the side of the
vehicle closest to the centre of the road.
Use Technical Specification ISO/TS 21609
(Road Vehicles – "EMC guidelines for fitting
aftermarket radio frequency transmitting
equipment") when retrofitting RF (radio fre-
quency) transmitters. Comply with the legal
requirements for add-on parts.
If your vehicle has fittings for two-way radio
equipment, use the power supply or aerial
connections intended for use with the basic
wiring. Be sure to observe the manufacturer's additional instructions when installing.
Deviations with respect to wavebands, maxi-
mum transmission outputs or aerial positions must be approved by Mercedes-Benz. The maximum transmission output (PEAK) at
the base of the aerial must not exceed the
following values: Waveband Maximum
transmission output Short wave
3 - 54 MHz 100 W
4 m waveband
68 - 87.5 MHz 30 W
2 m waveband
144 - 174 MHz 50 W
Trunked radio/Tetra
380 - 460 MHz 35 W
70 cm waveband
400 - 460 MHz 35 W
GSM/DCS/PCS
850/900/1800/1900 10 W
UMTS/LTE 10 W
The following can be used in the vehicle with-
out restrictions:
R RF transmitters with a maximum transmis-
sion output of up to 100 mW
R mobile phones (GSM/DCS/PCS/UMTS/
LTE)
There are no restrictions when positioning the aerial on the outside of the vehicle for the fol-
lowing wavebands:
R Trunked radio/Tetra
R 70 cm waveband
R GSM/DCS/PCS
R UMTS/LTE Vehicle electronics
337Technical data Z