wheel MERCEDES-BENZ A CLASS 2012 User Guide

Tyre size (data)
.............................. 329
Tyre tread ...................................... 319
see Flat tyre
U
Unladen weight ................................. 346
Unlocking Emergency unlocking .......................81
From inside the vehicle (central
unlocking button) ............................. 80V
Vanity mirror (in sun visor) .............. 277
Variable SPEEDTRONIC see SPEEDTRONIC


Vehicle
Correct use ...................................... 24
Data acquisition ............................... 25
Electronics ..................................... 336
Equipment ....................................... 22
Implied warranty .............................. 24
Individual settings ..........................220
Leaving parked up ......................... 164
Locking (in an emergency) ............... 81
Locking (key) ................................... 75
Lowering ........................................ 329
Pulling away ................................... 144
Raising ........................................... 326
Registration ..................................... 24
Securing from rolling away ............325
Towing away .................................. 310
Tow-starting ................................... 310
Transporting .................................. 313
Unlocking (in an emergency) ........... 81
Unlocking (key) ................................ 75
Vehicle data ................................... 346
Vehicle data ....................................... 346
Vehicle dimensions ...........................346
Vehicle emergency locking ................81
Vehicle identification number see VIN
Vehicle identification plate ..............338
Vehicle maintenance see ASSYST PLUS
Vehicle tool kit .................................. 299
Vehicle weights ................................. 346Video (DVD)
........................................
215
Video DVD (on-board computer) ......215
VIN ...................................................... 338 W
Warning and indicator lamps ABS

................................................ 258
Brakes ........................................... 258
Distance warning signal ................. 266
ESP ®
.............................................. 260
ESP ®
OFF ....................................... 261
Fuel tank ........................................ 264
LIM (cruise control) ........................ 169
LIM (DISTRONIC PLUS) .................. 174
LIM (variable SPEEDTRONIC) ......... 171
Overview .......................................... 32
PASSENGER AIRBAG OFF ................ 52
Reserve fuel ................................... 264
Seat belt ........................................ 257
SRS ................................................ 263
Warning triangle ................................ 298
Washer fluid
Display message ............................ 256
Wheel bolt tightening torque ...........329
Wheel chock ...................................... 325
Wheels Changing/replacing .......................324
Changing a wheel .......................... 324
Checking ........................................ 319
Cleaning ......................................... 292
Cleaning (warning) .........................324
Emergency spare wheel ................. 332
Fitting a new wheel ........................328
Fitting a wheel ............................... 325
Important safety notes .................. 318
Removing a wheel ..........................328
Storing ........................................... 324
Tightening torque ........................... 329
Wheel size/tyre size ......................329
Windowbag
Display message ............................ 239
Operation ......................................... 45
Windows
Cleaning ......................................... 293
see Side windows
Windscreen
Demisting ...................................... 130 Index
19

Do not install accessories such as audio
systems in these areas. Do not carry out
repairs or welding. You could impair the
operating efficiency of the restraint sys-
tems.
Have accessories retrofitted at a qualified
specialist workshop.
If you use parts, tyres and wheels as well as
accessories
relevant to safety which have not
been approved by Mercedes, the operating
safety of the vehicle could be jeopardised.
This could lead to malfunctions in safety-rel-
evant systems, e.g. the brake system. Only
use genuine Mercedes-Benz parts or parts of
equal quality. Only use tyres, wheels and
accessories that have been specifically
approved for your vehicle.
Mercedes-Benz tests genuine parts and con-
version parts and accessories that have been
specifically approved for your vehicle for their
reliability, safety and suitability. Despite
ongoing market research, Mercedes-Benz is
unable to assess other parts. Mercedes-Benz
accepts no responsibility for the use of such
parts in Mercedes-Benz vehicles, even if they
have been independently or officially
approved.
In Germany, certain parts are only officially
approved for installation or modification if
they comply with legal requirements. This
also applies to some other countries. All gen-
uine Mercedes-Benz parts meet the approval
requirements. The use of non-approved parts
may invalidate the vehicle's general operating
permit.
This is the case:
R if they cause a change of the vehicle type
from that for which the vehicle's general
operating permit was granted
R if other road users could be endangered
R if the emission or noise levels are adversely
affected
Always specify the vehicle identification num-
ber (VIN) ( Y page 338) and the engine num-
ber ( Y page 338) when ordering genuine
Mercedes-Benz parts. Owner's Manual
General notes
Before you first drive off, read this Owner's
Manual

carefully and familiarise yourself with
your vehicle.
For your own safety and a longer vehicle life,
follow the instructions and warning notices in
this manual. Disregarding them may lead to
damage to the vehicle or personal injury. Vehicle equipment
This Owner's Manual describes all models
and all standard and optional equipment
available for your vehicle at the time of pub-
lication

of the Owner's Manual. Country-spe-
cific differences are possible. Note that your
vehicle may not be fitted with all features
described. This is also the case for systems
and functions relevant to safety. Therefore,
the equipment on your vehicle may differ from
that in the descriptions and illustrations.
The original purchase contract documenta-
tion for your vehicle contains a list of all of the
systems in your vehicle.
Should you have any questions concerning
equipment and operation, please consult a
Mercedes-Benz Service Centre.
The Owner's Manual and Service Booklet are
important documents and should kept in the
vehicle. Operating safety
Important safety notes
G
WARNING
If you do not have the prescribed service/
maintenance work or necessary repairs car-
ried out, this could result in malfunctions or
system

failures. There is a risk of an accident.
Always have the prescribed service/mainte-
nance work as well as necessary repairs car-
ried out at a qualified specialist workshop. 22
Introduction

G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with
limitations, or not at all. This could affect,
for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving. G
WARNING
Modifications to electronic components, their
software as well as wiring could effect their
function and/or the operation of other net-
worked components. This could in particular
also be the case for systems relevant to
safety. They might not function properly any
more and/or jeopardise the operational
safety of the vehicle. There is an increased
risk of an accident and injury.
Do

not attempt to modify the wiring as well as
electronic components or their software.
Always have work on electrical and electronic
components carried out at a qualified special-
ist workshop.
There is a risk of damage to the vehicle if:
R the vehicle becomes stuck, e.g. on a high
kerb or an unpaved road
R you drive too fast over an obstacle, e.g. a
kerb or a hole in the road
R a heavy object strikes the undercarriage or
parts of the chassis.
In situations like this, the body, the undercar-
riage, chassis parts, wheels or tyres could be
damaged without the damage being visible.
Components damaged in this way can unex-
pectedly fail or, in the case of an accident, no
longer withstand the strain they are designed
to.
If the underbody panelling is damaged, com-
bustible materials such as leaves, grass or
twigs can gather between the underbody and
the underbody panelling. If these materials
come in contact with hot parts of the exhaust system for an extended period, they can
catch fire.
Have

the vehicle checked and repaired imme-
diately at a qualified specialist workshop. If
on continuing your journey you notice that
driving safety is impaired, pull over and stop
the vehicle immediately, paying attention to
road and traffic conditions. In such cases,
visit a qualified specialist workshop. Declarations of conformity
Wireless vehicle components The following information applies to all com-
ponents

of the vehicle and the COMAND sys-
tem which receive and/or transmit radio
waves:
The components of this vehicle which receive
and/or transmit radio waves are compliant
with the basic requirements and other rele-
vant provisions of Directive 1999/5/EC. You
can obtain further information from any
Mercedes-Benz Service Centre.
Electromagnetic compatibility The electromagnetic compatibility of the vehi-
cle

components has been checked and certi-
fied according to the currently valid version
of Directive 72/245/EEC or the equivalent
ECE Regulation ECE-R 10. Diagnostics connection
The diagnostics connection is only intended
for

the connection of diagnostic equipment at
a qualified specialist workshop. G
WARNING
If you connect equipment to a diagnostics
connection in the vehicle, it can affect the
operation of the vehicle systems. This may
affect the operating safety of the vehicle.
There is a risk of an accident.
Do not connect any equipment to a diagnos-
tics connection in the vehicle. Introduction
23 Z

Data stored in the vehicle
A number of electronic components in your
vehicle contain data memories.
These data memories temporarily or perma-
nently store technical information about:
R the vehicle's operating state
R events
R faults
This technical information generally docu-
ments the condition of a component, a mod-
ule, a system or an environment.
These are, for example:
R operating conditions of system compo-
nents. This includes, e.g. fluid levels.
R status
messages from the vehicle and from
individual vehicle components. This
includes, e.g. number of wheel revolu-
tions/speed, deceleration, lateral acceler-
ation.
R malfunctions and faults in important sys-
tem components. This includes, e.g. lights,
brakes.
R reactions of the vehicle in special driving
situations. This includes, e.g. deployment
of an airbag, intervention of stability control
systems.
R environmental conditions. This includes,
e.g. the outside temperature.
This data is exclusively technical in nature
and is used to:
R assist in the detection and rectification of
faults and defects
R optimise vehicle functions
The data cannot be used to trace the vehicle's
movements over distances travelled.
When your vehicle is serviced, this technical
information can be read out from the event
and fault memory.
Services include:
R repairs
R service processes R
warranty claims
R quality assurance
The information is read out by authorised
employees of the service network (including
manufacturers)
using special diagnostic devi-
ces. You can find more information there if
necessary.
After a fault has been rectified, the informa-
tion in the fault memory is deleted or consec-
utively overwritten.
In normal vehicle operation, situations may
arise in which this technical data could
become personal in nature in conjunction
with other information and, if necessary, on
consultation of an approval official.
Examples include:
R accident reports
R vehicle damage
R witness testimonies
Further additional features which are con-
tractually agreed with the customer likewise
allow specific vehicle data to be obtained
from the vehicle. Such additional features
include vehicle locating in an emergency, for
example. Copyright information
General notes
You can find information on licences for free
and open-source software used in your vehi-
cle

and its electronic components on the fol-
lowing website:
http://www.mercedes-benz.com/
opensource Introduction
25 Z

Cockpit
................................................. 28
Instrument cluster ..............................30
Multifunction steering wheel .............33
Centre console .................................... 34
Overhead control panel ......................36
Door control panel .............................. 37 27At a glance

Cockpit
Function Page
:
Steering wheel gearshift
paddles
156
;
Combination switch 107
=
Instrument cluster 30
?
Horn
A
DIRECT SELECT lever 151
B
PARKTRONIC warning dis-
play
182
C
Overhead control panel 36
D
Climate control systems
122 Function Page
E
Ignition lock 143
F
Adjusting the steering
wheel
98
G
Cruise control lever 169
H
Electric parking brake 163
I
Light switch 105
J
Diagnostics connection 23
K
Opening the bonnet 28528
CockpitAt a glance

Function Page
:
Overhead control panel 36
;
PARKTRONIC warning dis-
play
182
=
Combination switch 107
?
Instrument cluster 30
A
Horn
B
DIRECT SELECT lever 151
C
Steering wheel gearshift
paddles
156
D
Light switch
105 Function Page
E
Electric parking brake 163
F
Opening the bonnet 285
G
Diagnostics connection 23
H
Ignition lock 143
I
Adjusting the steering
wheel
98
J
Cruise control lever 169
K
Climate control systems 122Cockpit
29At a glance

Multifunction steering wheel
Function Page
:
Multifunction display 210
;
Audio/COMAND display;
see the separate operating
instructions
=
?
Switches on LINGUA-
TRONIC; see the separate
operating instructions
?
~
Rejects or ends a call 215
Exits telephone book/
redial memory
6
Makes or accepts a call
Switches to the redial mem-
ory
WX
Adjusts the volume
8
Mute Function Page
A
=;
Selects a menu 209
9:
Selects a submenu or
scrolls through lists
209
a
Confirms the selection 209
Hiding display messages 229
B
%
Back 209
Switches off LINGUA-
TRONIC; see the separate
operating instructionsMultifunction steering wheel
33At a glance

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). Occupant safety
Important safety notes
G
WARNING
If service work is not carried out correctly, the
operating
safety of your vehicle may be affec-
ted. This could cause you to lose control of
your vehicle and cause an accident. More-
over, the safety systems may no longer be
able to protect you or others as they are
designed to do.
Always have service work carried out at a
qualified specialist workshop. G
WARNING
Modifications to or work performed incor-
rectly on the following parts can result in the
restraint

systems not functioning as intended:
R the restraint system, consisting of seat
belts and their anchorage points, belt ten-
sioners, belt force limiters and airbags
R the wiring
R networked electronic systems
Airbags and belt tensioners could fail to
deploy or be triggered in an accident despite
the deceleration force being sufficient to trig-
ger the systems, or could be triggered unin-
tentionally. For this reason, never make any
modifications to the restraint systems.
Therefore, you must not tamper with elec-
tronic components or their software. The seat belts, together with SRS (Supple-
mental Restraint System), are complemen-
tary, co-ordinated restraint systems
(Y page 41). They reduce the risk of injury
in specific, pre-defined types of accident sit-
uations and thereby increase occupant
safety. However, seat belts and airbags gen-
erally do not protect against objects pene-
trating the vehicle from the outside.
To ensure that the restraint systems can
deliver their full potential protection, make
sure that:
R
the seat and head restraint are adjusted
properly

(Y page 92)
R the seat belt has been fastened properly
(Y page 46)
R the airbags can inflate unrestricted if
deployed ( Y page 42)
R the steering wheel is adjusted properly
(Y page 98)
R the restraint systems have not been modi-
fied
An airbag increases the protection of vehicle
occupants wearing a seat belt. However, air-
bags are only an additional restraint system
which complements, but does not replace,
the seat belt. All vehicle occupants must wear
their seat belt correctly at all times, even if
the vehicle is equipped with airbags. The air-
bags are not deployed in all types of acci-
dents. For example, if the protective capacity
of correctly fastened seat belts is not
increased by deploying the airbags, the air-
bags will not deploy.
Airbag deployment only provides increased
protection if the seat belt is worn correctly.
The seat belt helps, firstly, to keep the vehicle
occupant in the best position in relation to the
airbag. Secondly, in a head-on collision, for
example, the seat belt prevents the vehicle
occupant from being propelled towards the
point of impact. 40
Occupant safety
Safety

R
do not lean forwards, e.g. over the cover of
the driver's/front-passenger front airbag,
particularly when the vehicle is in motion.
R do not put your feet on the dashboard.
R only hold the steering wheel on the outside.
This allows the airbag to be fully deployed.
You could be injured if the airbag is
deployed and you are holding the inside of
the steering wheel.
R do not lean on the doors from inside the
vehicle.
R make sure that there are no people, ani-
mals or objects between the vehicle occu-
pants and the area where the airbags are
deployed.
R do not place any objects between the seat
backrest and the door.
R do not hang any hard objects, e.g. coat
hangers, on the grab handles or coat hooks.
R do not attach accessories, e.g. cup holders,
to the doors.
It is not possible to rule out a risk of injury
being caused by an airbag, due to the high
speed at which the airbag must be deployed. G
WARNING
Airbag functionality can only be assured if the
following
parts are not covered and no badges
or stickers are attached to them:
R padded steering wheel boss
R kneebag cover below the steering column
R front-passenger airbag cover
R outer side of front seat bolsters
R side trim next to the rear seat backrest
R roof frame cover between the front A-pillar
and the C-pillar in the rear compartment G
WARNING
When an airbag deploys, a small amount of
powder is released. The powder may cause
short-term breathing difficulties to persons
suffering from asthma or other pulmonary
conditions. In order to prevent potential breathing diffi-
culties, you should leave the vehicle as soon
as it is safe to do so. You can also open the
window

to allow fresh air to enter the vehicle
interior. The powder does not constitute a
health hazard and does not indicate that there
is a fire in the vehicle. G
WARNING
The airbag parts are hot after the airbag has
been deployed. Do not touch them as you
could burn yourself.
Have the airbags replaced at a qualified spe-
cialist workshop. Otherwise, occupants are
not protected by the airbags in the event of
another accident.
Airbag deployment slows down and restricts
the movement of the vehicle occupant.
If the airbags are deployed, you will hear a
bang

and a small amount of powder may also
be released. Only in rare cases will the bang
affect your hearing. The powder that is
released generally does not constitute a
health hazard. The 6 SRS warning lamp
lights up.
The airbag installation locations are identified
by the AIRBAG symbol.
Front airbags !
Do not place heavy objects on the front-
passenger seat. The system may then
detect

that the seat is occupied and if there
is an accident, the restraint systems on the
front-passenger side could be deployed.
Have restraint systems that have been trig-
gered replaced. Occupant safety
43
Safety Z