2012 MERCEDES-BENZ A CLASS Owners Manual

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
(Y page 224)
X Press button :.
The red or blue indicator lamp in but-
ton : lights up.
Switching off the auxiliary heating/venti-
lation
X Press button :.
The red or blue indicator lamp in but-
ton : 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, please
contact 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 the u button.
ON is shown in the remote control display.
X To deactivate: press the ^ button.
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
135
Climate control Z

The following messages may appear in the
display:
Display Meaning
The auxiliary heating/
ventilation is switched
off.
The auxiliary ventilation
is
switched on. The num-
ber in the display shows
the remaining time (in
minutes) for the auxiliary
ventilation. The auxiliary heating is
switched

on. The number
in the display shows the
remaining time (in
minutes) for the auxiliary
heating. A departure time has
been activated. The
departure time appears
in the display.
A departure time has
been activated. The aux-
iliary ventilation is cur-
rently activated. The
departure time appears
in the display.
A departure time has
been activated. The aux-
iliary heating is currently
activated. The departure
time appears in the dis-
play. Setting the departure time
X
Press the , or . button repeatedly
until
the time to be changed appears in the
display.
X Press the u and ^ buttons simulta-
neously.
The Î symbol in the remote control dis-
play flashes.
X Press the , or . button to set the
desired departure time.
i The longer you press the , or .
button, the faster the time changes.
X Press the u and ^ buttons simulta-
neously.
The new departure time is stored.
Activating the set departure time
X Press the , or . button repeatedly
until
the desired departure time appears in
the display.
X Press the u button.
The Í symbol and the departure time
appear in the display.
Deactivating a set departure time
X Press the , or . button.
The
status of the auxiliary heating is shown
in the display.
X Press the . button.
The first departure time stored appears in
the display.
X Press the ^ button.
OFF

is shown in the remote control display.
Replacing the remote control battery G
WARNING
Batteries contain toxic and corrosive substan-
ces.
If batteries are swallowed, it can result in
severe health problems. There is a risk of fatal
injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately. 136
Operating the climate control system
Climate control

H
Environmental note Batteries contain pollutants.
It
is illegal to dispose of them
with the household rubbish.
They must be collected sep-
arately and disposed of in an
environmentally responsible
recycling system. Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to a qualified spe-
cialist workshop or to a col-
lection

point for used batter-
ies.
One 6 V pin battery, type 2CR11108 is
required. X
Prise apart the side arms of battery
cover ; and pull off battery cover ;.
X Remove old battery :.
X Insert the new battery. Observe the polarity
signs on the back of the remote control
when doing so.
X Slide battery cover ; back onto the
remote control.
X Use the remote control to check the vehi-
cle's auxiliary heating functions. Operating the climate control system
137
Climate control Z

Problems with the auxiliary heating/ventilation
Display messages Possible causes/consequences and
M Solutions$
FAIL The signal transmission between the transmitter and the vehicle
is faulty.
X
Change your position in relation to the vehicle, moving closer if
necessary.
X Make another attempt to switch the auxiliary heating on or off
using the remote control. ©
FAIL There is too little fuel in the fuel tank.
X
Refuel at the nearest filling station.
X Make another attempt to switch on the auxiliary heating using
the remote control. The auxiliary heating is faulty.
X
Have the auxiliary heating checked at a qualified specialist
workshop. FAIL The auxiliary heating cannot be switched on or has switched itself
off.
The
auxiliary heating was started more than twice when the engine
was switched off.
X Switch on the engine and let it run for more than ten seconds.
X Make another attempt to switch on the auxiliary heating using
the remote control. The auxiliary heating cannot be switched on or has switched itself
off.
The starter battery is not sufficiently charged.
X
Charge the starter battery.
X Make another attempt to switch on the auxiliary heating using
the remote control.138
Operating the climate control system
Climate control

Display messages Possible causes/consequences and
M SolutionsThe auxiliary heating cannot be switched on or has switched itself
off.
There is too little fuel in the fuel tank.
X
Refuel at the nearest filling station.
X Make another attempt to switch on the auxiliary heating using
the remote control. The auxiliary heating cannot be switched on or has switched itself
off.
The auxiliary heating is faulty.
X
Have the auxiliary heating checked at a qualified specialist
workshop. Adjusting the air vents
Important safety notes
G
WARNING
Very hot or very cold air can flow from the air
vents. This could result in burns or frostbite in
the immediate vicinity of the air vents. There
is a risk of injury.
Make sure that all vehicle occupants always
maintain a sufficient distance to the air out-
lets. If necessary, redirect the airflow to
another area of the vehicle interior.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
R keep the air inlet between the windscreen
and the bonnet free of blockages, such as
ice, snow or leaves.
R never cover the vents or ventilation grilles
in the vehicle interior.
i Move the adjusters for the air vents ver-
tically or horizontally, to set the direction of
the airflow.
i Optimal climate control function is ach-
ieved by opening the air vents fully and set-
ting the adjusters to the middle position. Setting the centre air vents
X
To open the centre air vent: turn the
adjuster in one of centre air vents : anti-
clockwise.
X To close the centre air vent: turn the
adjuster
in one of centre air vents : clock-
wise until it engages. Adjusting the air vents
139
Climate control Z

Adjusting the side air vents
:
Side window demister vent
; Side air vent
X To open a side air vent: turn the adjuster
in side air vent ; anti-clockwise.
X To close a side air vent: turn the adjuster
in side air vent ; clockwise until it
engages. Setting the rear-compartment air
vents
:
Rear-compartment air vent, left
; Rear-compartment air vent, right
= Rear-compartment air vent thumbwheel
X To open/close: turn
thumbwheel = up or
down. 140
Adjusting the air vents
Climate control

Useful information ............................
142
Running-in notes ............................... 142
Driving ............................................... 142
Manual transmission ........................ 150
Automatic transmission ................... 151
Refuelling ........................................... 159
Parking ............................................... 162
Driving tips ........................................ 165
Driving systems ................................ 168
Towing a trailer ................................. 201 141Driving and parking

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). Running-in notes
Important safety notes
New brake pads/linings and discs that have
been

replaced only achieve optimum braking
effect after several hundred kilometres of
driving. Compensate for the reduced braking
effect by applying greater force to the brake
pedal. The first 1500 km
If you treat the engine with sufficient care
from

the very start, you will be rewarded with
excellent performance for the remainder of
the engine's life.
R Drive at varying vehicle speeds and engine
speeds for the first 1500 km.
R Avoid overstraining the vehicle during this
period, e.g. driving at full throttle.
R Change gear in good time, before the rev
counter needle is Ô of the way to the red
area of the rev counter.
R Do not shift down a gear manually in order
to brake.
Vehicles with automatic transmission:
R Try to avoid depressing the accelerator
pedal beyond the point of resistance (kick-
down).
After 1,500 km, you may gradually bring the
vehicle up to full road and engine speeds. Additional running-in notes for AMG vehicles:
R
Do

not drive at speeds above 140 km/h for
the first 1,500 km.
R Only allow the engine to reach a maximum
engine speed of 4,500 rpm briefly.
i You should also observe these notes on
running-in if the engine or parts of the drive
train on your vehicle have been replaced. Driving
Important safety notes
G
WARNING
Objects in the driver's footwell may restrict
the clearance around the pedals or block a
depressed pedal. This jeopardises the oper-
ating and road safety of the vehicle. There is
a risk of an accident.
Stow

all objects securely in the vehicle so that
they do not get into the driver's footwell.
Always fit the floormats securely and as pre-
scribed in order to ensure that there is always
sufficient room for the pedals. Do not use
loose floormats and do not place several floor-
mats on top of one another. G
WARNING
Unsuitable footwear can hinder correct usage
of the pedals, e.g.:
R shoes with thick soles
R shoes with high heels
R slippers
There is a risk of an accident.
Wear suitable footwear to ensure correct
usage of the pedals. 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 142
Driving
Driving and parking