2012 MERCEDES-BENZ A-CLASS HATCHBACK lights

Windows misted up on the outside
X
Activate the windscreen wipers.
X Set the air distribution to PorO.
i You should only select this setting until
the windscreen is clear again. Rear window heating
Switching on/off The rear window heating has a high current
draw. You should therefore switch it off as
soon as the window is clear. It otherwise
switches off automatically after several
minutes.
If the battery voltage is too low, the rear win-
dow heating may switch off.
X Turn the key to position 2in the ignition
lock (Y page 143).
X Press the ¤button.
The indicator lamp in the ¤button lights
up or goes out. Operating the climate control system
131Climate control

Problems with the rear window heating
Problem
Possible causes/consequences and
M
MSolutions The rear window heat-
ing has switched off
prematurely or cannot
be activated. The battery has not been sufficiently charged.
X Switch off any consumers that are not required, e.g. reading
lamps, interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window heat- ing can be activated again. Activating/deactivating air-recircula-
tion mode
If you switch on air-recirculation mode, the
windows can mist up more quickly, in partic-
ular at low temperatures. Only use air-recir-
culation mode briefly to prevent the windows misting up.
You can deactivate the flow of fresh air if
unpleasant odours are entering the vehicle
from outside. The air already inside the vehi-
cle will then be recirculated.
The operation of air-recirculation mode is thesame for all control panels.
X Turn the key to position 2in the ignition
lock (Y page 143).
X To activate: press theebutton.
The indicator lamp in the ebutton lights
up.
i Air-recirculation mode is activated auto-
matically at high outside temperatures.
When air-recirculation mode is activated
automatically, the indicator lamp in the
e button is not lit.
Outside air is added after about
30 minutes.
X To deactivate: press theebutton.
The indicator lamp in the ebutton goes
out. i
Air-recirculation mode deactivates auto-
matically:
R after approximately five minutes at out-
side temperatures below approximately
5 †.
R after approximately five minutes if the
"Cooling with air dehumidification" func-
tion is deactivated.
R after approximately 30 minutes at out-
side temperatures above approximately
5 †a nd when the "Cooling with air dehu-
midification function" is activated. Convenience opening/closing using
the air-recirculation button
G
WARNING
When the convenience closing feature is oper- ating, parts of the body could become trapped
in the closing area of the side window and the
sliding sunroof. There is a risk of injury.
Observe the complete closing procedure
when the convenience closing feature is oper-
ating. When closing make sure that no parts of the body are in the closing area. G
WARNING
During convenience opening parts of the body could be drawn in or become trapped
between the side window and window frame.
There is a risk of injury.
When opening, make sure that nobody is
touching the side window. If someone
becomes trapped, press the Wswitch 132
Operating the climate control systemClimate control

immediately to open/close the side window
in the door. The side window stops. To con-
tinue closing the side window, pull on the
W switch.
X Convenience closing feature: press and
hold the ebutton until the side win-
dows and the panorama sliding sunroof are closed.
The indicator lamp in the ebutton lights
up. Air-recirculation mode is activated.
If parts of the body are in the closing area
during convenience closing, proceed as fol-
lows:
X To open/close the side window, press the
W button.
The side window stops.
X To then open the side window, press the
W button again.
X To open/close the panorama sliding sun-
roof press the 3button.
The panorama sliding sunroof stops.
X To then open the panorama sliding sunroof
press the 3button again.
X Press the dbutton again for longer than
2 seconds.
The side windows move in the opposite
direction.
i Notes on the automatic reversing func-
tion for:
R the side window (Y page 83)
R the panorama sliding sunroof
(Y page 87)
X Convenience opening feature: press and
hold the ebutton until the side win-
dows and the panorama sliding sunroof
have opened. The side windows and the
panorama sliding sunroof move back to
their original position.
The indicator lamp in the ebutton goes
out. Air-recirculation mode is deactivated.
i If you open the side windows or the pan-
orama sliding sunroof manually after clos-
ing with the convenience closing feature, they will remain in this position when
opened using the convenience opening fea-
ture. Activating/deactivating the residual
heat function
The residual heat function is only available
with THERMOTRONIC automatic climate con- trol.
It is possible to make use of the residual heat
of the engine to continue heating the vehicle
for approximately 30 minutes after the engine
has been switched off. The heating time
depends on the temperature that has been
set for the vehicle interior.
i The blower will run at a low speed regard-
less of the airflow setting.
i If you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
X Turn the key to position 0in the ignition
lock or remove it (Y page 143).
X To activate: press theÌbutton.
The indicator lamp in the Ìbutton lights
up.
X To deactivate: press theÌbutton.
The indicator lamp in the Ìbutton goes
out.
i Residual heat is deactivated automati-
cally:
R after approximately 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R when the auxiliary heating is switched on Operating the climate control system
133Climate control Z

Switching the auxiliary heating/venti-
lation on/off using the centre console
button Switching on the auxiliary heating/venti-
lation The colours of the indicator lamps on the but-
ton have the following meanings:
Blue Auxiliary ventilation switched on
Red Auxiliary heating switched on
Yellow Departure time preselected (Ypage 224)
X Press button :.
The red or blue indicator lamp in button :
lights up.
Switching off the auxiliary heating/venti-
lation
X Press button :.
The red or blue indicator lamp in button :
goes out.
Switching the auxiliary heating/venti-
lation on/off using the remote control Your vehicle comes with one remote control.
You may use two additional remote controls
for your vehicle. For more information, pleasecontact a qualified specialist workshop.
The remote control has a maximum range of
approximately 300 metres. This range is
reduced by:
R sources of radio interference
R solid objects between the remote control
and the vehicle R
the remote control being in an unfavoura-
ble position in relation to the vehicle
R transmitting from an enclosed space
i The optimum range can be achieved if you
hold the remote control vertically, pointing upwards when you press one of the but-
tons.
i A battery symbol appears in the display
when the battery in the remote control is
low. Replace the remote control battery
(Y page 136).
Switching the auxiliary heating/ventila-
tion on/off Remote control
:
Display
; . To check the status/set the depar-
ture time
= ^ To switch off the auxiliary heating/
ventilation
? u To switch on the auxiliary heating/
ventilation
A , To check the status/set the depar-
ture time
X To activate: press theubutton.
ON
ON is shown in the remote control display.
X To deactivate: press the^button.
OFF OFF is shown in the remote control display.
Checking the status of the auxiliary heat-
ing/ventilation
X Press the ,or. button. Operating the climate control system
135Climate control Z

Manual transmission
X
Depress the brake pedal and keep it
depressed.
X Depress the clutch pedal fully.
X Shift to neutral N.
i You can only start the engine when the
clutch pedal is fully depressed.
Automatic transmission X
Shift the transmission to position P.
Transmission position display Pis shown in
the multifunction display.
i When the transmission is in position
N,
you can also start the engine with the brake pedal depressed.
Starting procedure X
To start a petrol engine: turn the key to
position 3in the ignition lock (Y page 143)
and release it as soon as the engine is run-
ning.
X To start a diesel engine: turn the key to
position 2in the ignition lock (Y page 143).
The % preglow indicator lamp in the
instrument cluster lights up.
X When the %preglow indicator lamp
goes out, turn the key to position
3(Y page 143) and release it as soon as the
engine is running.
i You can start the engine without preglow
if the engine is warm. Pulling away
Manual transmission !
Change gear in good time and avoid spin-
ning the wheels. Otherwise, you could dam- age the vehicle.
X Depress the brake pedal and keep it
depressed.
X Depress the clutch pedal fully. X
Shift to either first gear or reverse gear R.
X Release the electric parking brake
(Y page 163).
X Release the brake pedal.
X Slowly release the clutch pedal and gently
depress the accelerator pedal.
i Follow the shift recommendations in the
multifunction display for an economical
driving style (Y page 151).
i The vehicle locks centrally once you have
pulled away. The locking knobs in the doors
drop down.
You can open the doors from the inside at
any time.
You can also deactivate the automatic lock- ing feature (Y page 223).
Automatic transmission i
It is only possible to shift the transmission
from position Pto the desired position if
you depress the brake pedal. Only then can
the parking lock be deactivated. If you do
not depress the brake pedal, the DIRECT
SELECT lever can still be moved but the
parking lock remains engaged.
i At transmission fluid temperatures below
Ò20 †, you can only shift out of position P
into another transmission position when
the engine is running.
X Depress the brake pedal and keep it
depressed.
X Shift the transmission to position Dor R.
X Release the brake pedal.
X Carefully depress the accelerator pedal.
The electric parking brake (Y page 163) is
automatically released.
The red !indicator lamp in the instru-
ment cluster goes out.
i The vehicle locks centrally once you have
pulled away. The locking knobs in the doors
drop down. 144
DrivingDriving and parking

Vehicles with automatic transmission
If the vehicle is braked to a standstill in Dor N,
the ECO start/stop function switches off the engine automatically.
i The HOLD function can be activated if the
engine has been switched off automati-
cally. It is then not necessary to continue
applying the brakes during the automatic
stop phase. When you depress the accel-
erator pedal, the engine starts automati-
cally and the braking effect of the HOLD
function is deactivated.
Automatic engine start General notes
The engine is started automatically if:
R
you switch off the ECO start/stop function
by pressing the ECO button
R you engage reverse gear R
R the vehicle starts to roll
R the brake system requires this
R the temperature in the vehicle interior devi-
ates from the set range
R the system detects moisture on the wind-
screen when the air-conditioning system is
switched on
R the battery's charge status is too low
R the driver's seat belt is released or the driv-
er's door is opened
Vehicles with manual transmission
! Only engage gear when the clutch pedal is
depressed.
The engine is started automatically if you:
R depress the clutch pedal fully
R depress the accelerator pedal Vehicles with automatic transmission
The engine is started automatically if you:
R release the brake pedal when HOLD is not
activated and the transmission is in posi-
tion Dor N
R depress the accelerator pedal
R move the transmission out of position P
i Shifting the transmission to position
P
does not start the engine.
i If you shift the transmission from
Rto D,
the ECO start/stop function is available
again once the ¤symbol reappears in
green in the multifunction display.
Deactivating/activating the ECO start/
stop function ECO button
X To switch off: press button:.
Indicator lamp ;and the ¤symbol in
the multifunction display go out.
X To switch on: press button:.
Indicator lamp ;lights up.
If all conditions for automatic engine
switch-off (Y page 146) are met, the ¤
symbol is shown in green in the multifunc-
tion display.
If not all conditions for automatic engine
switch-off (Y page 146) are met, the ¤
symbol is shown in yellow in the multifunc-
tion display. If this is the case, the ECO
start/stop function is not available. Driving
147Driving and parking Z

cle from rolling away by applying the parking
brake.
Vehicles with manual transmission X
Shift to either first gear or reverse gear R.
X Turn the key to position 0in the ignition
lock and remove it.
The immobiliser is activated.
X Apply the electric parking brake.
Vehicles with automatic transmission All vehicles (except AMG vehicles)
X Apply the electric parking brake.
X Shift the transmission to position P.Selector lever in AMG vehicles
AMG vehicles:
X Apply the electric parking brake.
X Press Pbutton :.
X Turn the key to position 0in the ignition
lock and remove it.
The immobiliser is activated.
i If you switch the engine off with the trans-
mission in position Ror D, the automatic
transmission shifts to Nautomatically.
If you then open one of the front doors or
remove the key from the ignition, the auto-
matic transmission shifts to P.
If you shift the automatic transmission to N
before switching off the engine, the auto-
matic transmission remains in Neven if a
door is opened. Electric parking brake
General notes G
WARNING
If you leave children unattended in the vehi-
cle, they could set the vehicle in motion by, for example:
R releasing the parking brake
R shifting an automatic transmission out of
parking position P
R shifting a manual transmission into neutral
R starting the engine
They could also operate vehicle equipment.
There is a risk of an accident and injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children unattended in the vehicle. i
The electric parking brake carries out a
function check at regular intervals when
the engine is switched off. Noises that
occur are normal.
Engaging/releasing manually Engaging
X Push handle :.
When the electric parking brake is applied,
the ! red indicator lamp lights up in the
instrument cluster.
i The electric parking brake can also be
applied when the key is removed. Parking
163Driving and parking Z

Releasing
X Pull handle :.
The red !indicator lamp in the instru-
ment cluster goes out.
i You can only release the electric parking
brake when the key is in position 1or 2in
the ignition lock.
Applying automatically The electric parking brake is applied auto-
matically:
R if DISTRONIC PLUS brings the vehicle to a
standstill (vehicles with automatic trans-
mission) or
R if the HOLD function is keeping the vehicle
stationary.
In addition, at least one of the following con-
ditions must be fulfilled:
R the engine is switched off
R the driver's door is open and the seat belt is
not fastened
R there is a system malfunction
R the power supply is insufficient
R the vehicle is stationary for a lengthy
period.
The red !indicator lamp in the instrument
cluster lights up.
i The electric parking brake is not automat-
ically applied if the engine is switched off by
the ECO start/stop function.
Releasing automatically i
The electric parking brake can only be
released automatically in vehicles with
automatic transmission.
The electric parking brake of your vehicle is
released automatically when all of the follow- ing conditions are fulfilled:
R the engine is running.
R the transmission is in position Dor R.
R the seat belt is fastened.
R you depress the accelerator pedal. If the transmission is in position
R, the tailgate
must be closed.
If your seat belt is not fastened, the following conditions must be fulfilled to automatically
release the electric parking brake:
R the driver's door is closed.
R you have shifted out of transmission posi-
tion Por you have previously driven faster
than 3km/h.
Emergency braking The vehicle can also be braked during an
emergency using the electric parking brake.
X While driving, push handle :of the electric
parking brake (Y page 163).
i The vehicle is braked for as long as han-
dle :of the electric parking brake
pressed. The longer the electric parking
brake handle :is depressed, the greater
the braking force.
During braking:
R a warning tone sounds
R the Release parking brake Release parking brake message
appears
R the red !indicator lamp in the instru-
ment cluster flashes
When the vehicle has been braked to a stand- still, the electric parking brake is engaged. Parking up the vehicle
If you leave the vehicle parked up for longer
than four weeks, the battery may be damaged by exhaustive discharging.
If you leave the vehicle parked up for longer
than six weeks, the vehicle may suffer dam-
age as a result of lack of use.
X Visit a qualified specialist workshop and
seek advice.
i You can obtain information about trickle
chargers from a qualified specialist work-
shop. 164
ParkingDriving an
d parking