change wheel MERCEDES-BENZ A-CLASS HATCHBACK 2012 User Guide

The
Park Assist active Accelerate
Park Assist active Accelerate
and
and brake
brake Observe
Observe surroundings
surroundings mes-
sage appears in the multifunction display.
i You will achieve the best results by wait-
ing for the steering procedure to complete before pulling away.
X Drive forwards and be ready to brake at all
times.
X Stop as soon as PARKTRONIC sounds the
continuous warning tone, if not before.
Vehicles with manual transmission: the Park
Park
Assist active Engage reverse gear
Assist active Engage reverse gear
Observe Observe surroundings
surroundings message appears in
the multifunction display.
Vehicles with automatic transmission: the
Park Park Assist
Assist active
activeSelect
SelectR
RObserve
Observe
surroundings
surroundings message appears in the mul-
tifunction display.
X Additional transmission shifts may be nec-
essary.
As soon as the parking procedure is com-
plete, the Park Assist switched off
Park Assist switched off
message appears in the multifunction dis-
play.
Active Parking Assist is then deactivated.
PARKTRONIC is still available.
X Manoeuvre if necessary.
X Always observe the warning messages dis-
played by PARKTRONIC (Y page 184).
Parking tips: R the way your vehicle is positioned in the
parking space after parking is dependent
on various factors. These include the posi-
tion and shape of the vehicles parked in
front and behind it and the conditions of the location. It may be the case that Active
Parking Assist guides you too far into a
parking space, or not far enough into it. In
some cases, it may also lead you across or
onto the kerb. If necessary, you should can-
cel the parking procedure with Active Park- ing Assist.
R you can also engage forward gear prema-
turely. The vehicle redirects and does not
drive as far into the parking space. Should a gear be changed too early, the parking pro-
cedure will be cancelled. A sensible parking position can no longer be achieved from
this position.
Exiting a parking space In order that Active Parking Assist can sup-
port you when you exit the parking space:
R the border of the parking space must not be
too low.
R the border of the parking space must not be
too wide. The system manoeuvres the vehi-
cle into a position at a maximum of 45° to
the starting position in the parking space.
R a manoeuvring distance of at least 0.60 m
must be available.
Active Parking Assist can only assist you with exiting a parking space if you have parked thevehicle using Active Parking Assist.
X Start the engine.
X Switch on the turn signal on the side facing
the street.
X Vehicles with manual transmission:
engage first or reverse gear.
Vehicles with automatic transmission:
shift the transmission to position Dor R.
The Start Park Assist? Yes: OK No: Start Park Assist? Yes: OK No:
% message appears in the multifunction
display.
X To cancel the procedure: press the%
button on the multifunction steering wheel or pull away.
or
X To exit a parking space using Active
Parking Assist: press theabutton on
the multifunction steering wheel.
The Park Assist active Accelerate Park Assist active Accelerate
and
and brake
brake Observe
Observe surroundings
surroundings mes-
sage appears in the multifunction display.
X Release the multifunction steering wheel.
X Reverse the vehicle or drive forwards, being
ready to brake at all times. Do not exceed a maximum speed of approximately 10 km/h Driving systems
189Driving and parking Z

:
Lane Keeping Assist camera
If you select km
kmon the on-board computer in
the Display unit Speed-/odometer
Display unit Speed-/odometer func-
tion (Y page 220), Lane Keeping Assist is
active starting at a speed of 60 km/h. If the
miles
miles display unit is selected, the assistance
range begins at 40 mph.
Important safety notes G
WARNING
Lane Keeping Assist cannot always clearly
identify lane markings.
In these cases, Lane Keeping Assist may:
R give an unnecessary warning
R not give a warning
There is a risk of an accident.
Always pay particular attention to the traffic
situation and keep in lane, especially if Lane
Keeping Assist alerts you. G
WARNING
The Lane Keeping Assist warning does not
return the vehicle to the original lane. There is a risk of an accident.
Always steer, apply the brakes or accelerate
the vehicle yourself, especially if Lane Keep-
ing Assist alerts you.
If you fail to adapt your driving style, Lane
Keeping Assist can neither reduce the risk of
an accident nor override the laws of physics. Lane Keeping Assist cannot take into account
road, weather or traffic conditions. Lane
Keeping Assist is only an aid. You are respon- sible for the distance to the vehicle in front, for vehicle speed, for braking in good time,
and for staying in the lane.
Lane Keeping Assist does not keep your vehi-
cle in its lane.
The system may be impaired or may not func-
tion if:
R there is poor visibility, e.g. due to insuffi-
cient illumination of the road, or due to
snow, rain, fog or spray
R there is glare, e.g. from oncoming traffic,
the sun or reflection from other vehicles
(e.g. if the road surface is wet)
R the windscreen is dirty, misted up, dam-
aged or covered, for instance by a sticker in
the vicinity of the camera
R no, or several, unclear lane markings are
present for one lane, e.g. in a construction
area
R the lane markings are worn away, dark or
covered up, e.g. by dirt or snow
R the distance to the vehicle in front is too
small and the lane markings thus cannot be
detected
R the lane markings change quickly, e.g.
lanes branch off, cross one another or
merge
R the road is narrow and winding
R there are highly variable shade conditions
on the road
A warning may be given if a front wheel
passes over a lane marking. It will warn you by means of intermittent vibration in the steer-
ing wheel for up to 1.5 seconds.
Activating Lane Keeping Assist
X Activate Lane Keeping Assist using the on-
board computer; to do so, select Standard Standard
or Adaptive
Adaptive(Y page 219).
If you drive at speeds above 60 km/h and
lane markings are detected, the lane mark-
ings in the assistance graphics display
(Y page 217) are shown in green. 200
Driving systemsDriving and parking

prescribed maximum speed in the relevant
country.
For certain Mercedes-Benz vehicles, the max-
imum permissible rear axle load is increased
when towing a trailer. Refer to the "Technical
data" section to find out whether this applies to your vehicle. If you utilise any of the added
maximum rear axle load when towing a trailer, the vehicle/trailer combination may not
exceed a maximum speed of 100 km/ hfor
reasons concerning the operating permit.
This also applies in countries in which the
permissible maximum speed for vehicle/
trailer combinations is above 100 km/h.
When towing a trailer, your vehicle's handling
characteristics will be different in comparison
to when driving without a trailer and it will
consume more fuel.
Change into a lower gear in good time on long
and steep downhill gradients. For vehicles
with automatic transmission, you need to
have selected manual drive program
M(Y page 156).
i This also applies if you have activated
cruise control, SPEEDTRONIC or DIS-
TRONIC PLUS.
This will use the braking effect of the engine,
so less braking will be required to maintain
vehicle speed. This relieves the load on the
brake system and prevents the brakes from
overheating and wearing too quickly. If you
need additional braking, depress the brake
pedal repeatedly rather than continuously.
i Briefly depressing the accelerator pedal
on downhill gradients while the manual
drive program Mis temporarily activated
(vehicles with automatic transmission): the automatic transmission may switch back to
the last active automatic drive program Eor
S. The automatic transmission may shift to a higher gear. This can reduce the engine'sbraking effect. Driving tips If the trailer swings from side to side:
X Do not accelerate.
X Do not countersteer.
X Brake if necessary.
R Maintain a greater distance from the vehi-
cle in front than when driving without a
trailer.
R Avoid braking abruptly. If possible, brake
gently at first to allow the trailer to run on.
Then, increase the braking force rapidly.
R The values given for gradient-climbing
capabilities from a standstill refer to sea
level. When driving in mountainous areas,
note that the power output of the engine,
and consequently the vehicle's gradient-
climbing capability, decrease with increas-
ing altitude. Folding out the ball coupling
G
WARNING
If you release the ball coupling or it does not
engage correctly when folding in, it will swing out. Within pivoting range of the ball coupling,
there is an increased risk of an accident and
injury.
Only release the ball coupling if the pivoting
range is unobstructed. Always make sure that the ball coupling engages when folding in.
Before you can tow a trailer with your vehicle, you must fold out the ball coupling.
The release wheel is located behind the left-
hand side trim panel in the boot. Towing a trailer
203Driving and parking Z

The fuel supply is interrupted to protect the
engine when the red band is reached. Outside temperature display
You should pay special attention to road con- ditions when temperatures are around the
freezing point.
The outside temperature display is in the mul-
tifunction display.
Changes in the outside temperature are dis-
played after a short delay. Speedometer with segments
The segments in the speedometer indicate
which speed range is available.
R Cruise control activated (Y page 168):
The segments light up from the stored
speed to the maximum speed.
R Variable SPEEDTRONIC activated
(Y page 171):
The segments light up from the start of the scale to the selected limit speed.
R DISTRONIC PLUS activated (Y page 173):
One or two segments in the set speed
range light up.
R DISTRONIC PLUS detects a vehicle in front:
The segments between the speed of the
vehicle in front and the stored speed light
up. Operating the on-board computer
Overview :
Multifunction display
; Switches on LINGUATRONIC; see the sep-
arate operating instructions
= Right control panel
? Left control panel
A Back button
X To activate the on-board computer: turn
the key to position 1in the ignition lock.
You can control the multifunction display and
the settings in the on-board computer using
the buttons on the multifunction steering
wheel. Displays and operation
209On-board computer and displays Z

R
"From reset" trip computer
R ECO display
X Press the =or; button on the steer-
ing wheel to select the Trip
Tripmenu.
X Press the 9or: button to select the
function that you wish to reset.
X Press the abutton.
X Press the :button to select Yes
Yesand
press ato confirm.
i If you reset the values in the ECO display,
the values in the "From start" trip computer
are also reset. If you reset the values in the "From start" trip computer, the values in
the ECO display are also reset. Navigation menu
Displaying navigation instructions X
Switch on the audio system or COMAND
Online; see the separate operating instruc-
tions.
X Press the =or; button on the steer-
ing wheel to select the Navi
Navi menu.
In the Navi
Navi menu, the multifunction display
shows navigation instructions. For more
information, see the separate operating
instructions.
Route guidance not active :
Direction of travel
; Current road Activating route guidance No change of direction announced
:
Distance to the destination
; Distance to the next change of direction
= Current road
? Symbol indicating "follow the road's
course"
Change of direction announced without a lane recommendation :
Road to which the change of direction
leads
; Distance to change of direction and visual
distance display
= Change-of-direction symbol
When a change of direction is announced, you
will see symbol =for the change of direction
and distance graphic ;. This shortens
towards the top of the display as you
approach the point of the announced change
of direction. Menus and submenus
213On-board computer and displays Z

Change of direction announced with a
lane recommendation Example: change of direction announced with lane
recommendation (colour multifunction display)
: Road to which the change of direction
leads
; Distance to change of direction and visual
distance display
= New lane during a change of direction
? Lane continues through change of direc-
tion
A Lane recommendation
B Change-of-direction symbol
On multilane roads, the system can display a
new lane recommendation =for the next
change of direction. During the change of
direction, additional lanes may be displayed.
Lane recommendations are only displayed if
the relevant data is available on the digital
map.
Other status indicators of the naviga-
tion system R
O: you have reached the destination or an
intermediate destination.
R New route... New route... orCalculating route
Calculating route:
calculating a new route
R Off map
Off map orOff road
Off road : the vehicle position
is outside the area of the digital map (off-
map position).
R No route No route : no route could be calculated to
the selected destination. Audio menu
Selecting a radio station :
Waveband
; Station frequency with memory position
i The memory position is only displayed
along with station ;if this has been
stored.
X Switch on the audio system or COMAND
Online and select Radio; see the separate
operating instructions.
X Press the =or; button on the steer-
ing wheel to select the Audio Audiomenu.
X To select a stored station: briefly press
the 9 or: button.
X To select a station from the station list:
press and briefly hold the 9or:
button.
If no station list is received: X To select a station using the station
search: press and briefly hold the 9
or : button.
i For information on changing waveband
and storing stations, see the separate oper-
ating instructions.
i DAB radio mode (Digital
AudioBroadcast-
ing); see the separate operating instruc-
tions. 214
Menus and submenusOn-board computer and displays

Audio player or audio media operation
Example: CD/DVD changer display
:
Current track
Audio data from various audio devices or
media can be played, depending on the equip- ment fitted in the vehicle.
X Switch on the audio system or COMAND
Online and select audio CD, audio DVD or
MP3 mode; see the separate operating
instructions.
X Press the =or; button on the steer-
ing wheel to select the Audio
Audio menu.
X To select the next/previous track:
briefly press the 9or: button.
X To select a track from the track list
(rapid scrolling): press and hold the 9
or : button until the desired track has
been reached.
If you press and hold the 9or:
button, the rapid scrolling speed is
increased. Not all audio devices or media
support this function.
If track information is stored on the audio
player or medium, the multifunction display
will show the number and title of the track.
The current track does not appear in audio
AUX mode ( Auxiliary audio mode: external
audio source connected).
TV operation i
If channel
:has been stored, the system
displays the associated preset as well.
X Switch on COMAND Online and select TV;
see the separate operating instructions.
X Press the =or; button on the steer-
ing wheel to select the Audio Audiomenu.
X To select a stored channel: briefly press
the 9 or: button.
X To select a channel from the channel
list: press and briefly hold the 9
or : button.
i To store a TV channel, see the separate
operating instructions.
Video DVD operation Example: CD/DVD changer display
:
Current scene
X Switch on COMAND Online and select
video DVD; see the separate operating
instructions.
X Press the =or; button on the steer-
ing wheel to select the Audio Audiomenu.
X To select the next or previous scene:
briefly press the 9or: button.
X To select a scene from the scene list
(rapid scrolling): press and hold the 9
or : button until desired scene has
been reached. Telephone menu
Introduction G
WARNING
Operating the integrated information systems and communications equipment in the vehicle Menus and sub
menus
215On-board computer and displays
Z

X
Press the :or9 button to select the
Permanent display:
Permanent display: function.
You will see the selected setting: outside
outside
temperature
temperature orDig. speedo [mph]
Dig. speedo [mph].
X Press the abutton to save the setting.
i The speed is displayed in mph.
Lights Switching the daytime driving lights
on/off
The
Daytime driving lights Daytime driving lights function can
only be switched on with the engine turned
off.
X Press the =or; button on the steer-
ing wheel to select the Settings
Settings menu.
X Press the :or9 button to select the
Lights Lights submenu.
X Press ato confirm.
X Press the :or9 button to select the
Daytime driving lights
Daytime driving lights function.
If the Daytime driving lights
Daytime driving lights function
has been switched on, the cone of light and the W symbol in the multifunction dis-
play are shown in orange.
X Press the abutton to save the setting.
Further information on daytime driving lights
(Y page 105).
Switching the Intelligent Light System
on/off
X Press the =or; button on the steer-
ing wheel to select the Settings
Settings menu.
X Press the :or9 button to select the
Lights Lights submenu.
X Press ato confirm.
X Press the :or9 button to select the
Intell. Light System
Intell. Light System function.
If the Intell. Light Sys.
Intell. Light Sys. function has
been switched on, the cone of light and the
L symbol in the multifunction display
are shown in orange.
X Press the abutton to save the setting. If you activate the
Intell. Light System
Intell. Light System
function, you activate the following functions:
R motorway mode
R active light function
R cornering light function
R extended range foglamps
If you set the dipped-beam headlamps for
driving on the right/left, the multifunction
display shows the Intell. Intell.Light
LightSystem:
System:
system inoperative Inactive for
system inoperative Inactive for
left-side traffic
left-side traffic orIntell. Light
Intell. Light
System:
System: System
Systeminoperative
inoperative Inactive
Inactive
for right-side traffic
for right-side traffic display message
instead of the Intell.
Intell.Light
LightSys.
Sys.function
in the Lights
Lights submenu (Y page 221).
Further information on the Intelligent Light
System (Y page 108).
Setting the dipped-beam headlamps for
driving on the left/right
X Press the =or; button on the steer-
ing wheel to select the Settings Settingsmenu.
X Press the :or9 button to select the
Lights
Lights submenu.
X Press ato confirm.
X Press :or9 to select the Dipped
Dipped
beams Setting for:
beams Setting for: function.
You will see the selected setting: Right-
Right-
side traffic
side traffic orLeft-side traffic
Left-side traffic.
X Press the abutton to save the setting.
If you change the setting, conversion does
not take place until the next time the vehi-
cle is stationary.
This function is only available on vehicles with
the Intelligent Light System.
You can use this function to switch between
symmetrical and asymmetrical dipped beam
(Y page 104).
If you set the dipped-beam headlamps for
driving on the right/left, then motorway
mode and the extended range foglamps are
unavailable.
You can also have the dipped-beam head-
lamps set for driving on the right/left at a Menus and submenus
221On-board computer and displays Z

X
Press the 9or: button to select
Radar sensor (See Owner's Man.)
Radar sensor (See Owner's Man.).
You will see the selected setting: Activa‐
Activa‐
ted
ted orDeactivated
Deactivated.
X Press the abutton to save the setting.
i In some countries you must deactivate
the radar sensor system. For further infor-
mation, see (Y page 350).
If the radar sensor system is switched off,
Blind Spot Assist is deactivated (Y page 197).
Heating Changing the departure time
X Press the =or; button on the steer-
ing wheel to select the Settings Settingsmenu.
X Press the :or9 button to select
theHeating Heating submenu.
X Press ato confirm.
You will see the selected setting.
X Press ato confirm.
X Press the :or9 button to select A
A, B
B
or Change C
Change C.
X Press ato confirm.
You can now change the departure time.
X Press the =or; button to select the
display to be changed: hours, minutes.
X Press the :or9 button to set the
selected display.
X Press the abutton to store the entry.
The yellow indicator lamp on the auxiliary
heating button lights up.
Selecting the departure time or deactivat-
ing a selected departure time
X Press the =or; button on the steer-
ing wheel to select the Settings
Settings menu.
X Press the :or9 button to select the
Heating
Heating submenu.
X Press ato confirm.
You will see the selected setting.
X Press ato confirm. X
Press :or9 to select one of the
three departure times or Timer off Timer off(no
timer active).
X Press ato confirm.
If a departure time is selected, the yellow
indicator lamp lights up on the auxiliary
heating button.
Changing the departure time
Only vehicles with auxiliary heating
(Y page 134) have this function.
In the Heating Heating submenu, you can select a
stored departure time or change a departure
time.
The auxiliary heating timer function calcu-
lates the switch-on time according to the out-
side temperature so that the vehicle is pre-
heated by the departure time. When the
departure time is reached, the auxiliary heat- ing continues to heat for a further five
minutes and then switches off. The auxiliary
heating adopts the THERMATIC or
THERMOTRONIC temperature setting.
You can switch off the auxiliary heating by
using the remote control or the auxiliary heat- ing button on the centre console. G
DANGER
If the exhaust pipe is blocked or sufficient
ventilation is not possible, toxic exhaust
fumes can enter the vehicle, especially car-
bon monoxide. This is the case, e.g. in
enclosed spaces, or if the vehicle is stuck in
snow. There is a risk of fatal injuries.
You should switch off the auxiliary heating in
enclosed spaces which do not have an extrac- tion system, e.g. a garage. If the vehicle is
stuck in snow and you must leave the auxiliary
heating running, keep the exhaust pipe and
the area around the vehicle clear of snow. To guarantee a sufficient supply of fresh air, open
a window on the side of the vehicle away from the wind. G
WARNING
When the auxiliary heating is switched on,
parts of the vehicle can become very hot. 224
Menus and submenusOn-board computer and displays

Displaying service messages
X
Switch the ignition on.
X Using =or;, select the Service
Service
menu.
X Press 9or: to select the ASSYST
ASSYST
PLUS
PLUS submenu and press ato confirm.
The service due date appears in the multi-
function display.
Information about Service Resetting the ASSYST PLUS service inter-
val display
! If the ASSYST PLUS service interval dis-
play has been inadvertently reset, this set-
ting can be corrected at a qualified special-
ist workshop.
Have service work carried out as described in the Service Booklet. This may otherwise
lead to increased wear and damage to the
major assemblies or the vehicle.
A qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre, will reset the ASSYST PLUS service interval display after
the service work has been carried out. You
can also obtain further information on main-
tenance work, for example.
Special service requirements
The prescribed service interval is based on
normal operation of the vehicle. Service work
will need to be performed more often if the
vehicle is operated under arduous conditions or increased loads, for example:
R regular city driving with frequent intermedi-
ate stops
R if the vehicle is primarily used to travel
short distances
R for frequent operation in mountainous ter-
rain or on poor road surfaces
R if the engine is often left idling for long peri-
ods
In these or similar operating conditions, have
the air filter, engine oil and oil filter, for exam- ple, changed more frequently. The tyres must be checked more frequently if the vehicle is
operated under increased loads. Further
information can be obtained at a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre.
Driving abroad
An extensive Mercedes-Benz Service network is also available in other countries. The Ser-
vice Hotline's current telephone numbers for
use when you are abroad are to be found in
the "Mercedes-Benz Service24h" section of
the Service Booklet. Care
General notes
H
Environmental note
Dispose of empty packaging and cleaning
cloths in an environmentally responsible man- ner.
! For cleaning your vehicle, do not use any
of the following:
R dry, rough or hard cloths
R abrasive cleaning agents
R solvents
R cleaning agents containing solvents
Do not scrub.
Do not touch the surfaces or protective
films with hard objects, e.g. a ring or ice
scraper. You could otherwise scratch or
damage the surfaces and protective film.
! Do not park up the vehicle for an extended
period straight after cleaning it, particularly after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you
should drive for a few minutes after clean-
ing. Braking heats the brake discs and the
brake pads/linings, thus drying them. The
vehicle can then be parked up. 290
CareMaintenance and care