2012 MERCEDES-BENZ A-CLASS HATCHBACK engine

Towing a trailer
Trailer towing is not permissible on the fol-
lowing models:
R
A 45 AMG 4MATIC
R Vehicles with the AMG Sports package
X Drive in the middle of the engine speed
range on uphill gradients.
X Depending on the uphill or downhill gradi-
ent, select a lower gear (Y page 166), even
if cruise control, DISTRONIC PLUS, or
SPEEDTRONIC are activated. Program selector button
General notes The program selector button allows you to
choose between drive programs with differ-
ent driving characteristics. Example: program selector button
E
Economy Comfortable, economical
driving
S
Sport Sporty driving style
M
Manual Manual gearshifting
X
Press program selector button :repeat-
edly until the letter for the desired gearshift program appears in the multifunction dis-
play.
i The automatic transmission switches to
automatic drive program Eeach time the
engine is started. i
For further information on the automatic
drive program, see (Y page 156).
AMG vehicles C
Controlled
Efficiency Comfortable, economical
driving
S
Sport Sporty driving style
M
Manual Manual gearshifting
X
Press program selector button :repeat-
edly until the letter for the desired gearshift program appears in the multifunction dis-
play.
i The automatic transmission switches to
automatic drive program Ceach time the
engine is started.
i For further information on the automatic
drive program, see (Y page 156). Automatic transmission
155Driving and parking Z

Steering wheel gearshift paddles
:
Left steering wheel gearshift paddle
(shifts down)
; Right steering wheel gearshift paddle
(shifts up)
In drive program M, you can change gear
yourself using the steering wheel gearshift
paddles.
If you pull the left or right steering wheel gear- shift paddle when in automatic drive program
E (drive program Con AMG vehicles) or S, the
automatic transmission shifts into drive pro-
gram Mfor a limited time. Depending on
which gearshift paddle is pulled, the auto-
matic transmission immediately shifts into
the next gear down or up.
AMG vehicles: you can activate drive pro-
gram MRACE START (Y page 181) using the
steering wheel gearshift paddles.
i You can only change gear with the steer-
ing wheel gearshift paddles when the trans-
mission is in position D.
i For further information on the manual
drive program, see (Y page 156).Automatic drive program
Drive program E(drive program Con AMG
vehicles) is characterised by the following:
R comfort-oriented engine settings.
R optimal fuel consumption resulting from
the automatic transmission shifting up
sooner. R
the vehicle pulling away more gently in
forward and reverse gears unless the accel-
erator pedal is depressed fully.
R increased sensitivity. This improves driving
stability on slippery road surfaces, for
example.
R the automatic transmission shifting up
sooner. This results in the vehicle being
driven at lower engine speeds and the
wheels being less likely to spin.
Drive program Sis characterised by the fol-
lowing:
R sporty engine settings.
R the automatic transmission shifting up
later.
R as a result of the later automatic transmis-
sion shift points, the fuel consumption pos- sibly being higher. Manual drive program
Introduction In manual drive program
M, you can change
gear yourself by using the steering wheel
gearshift paddles. For this, the transmission
must be in position D. The gear currently
selected and engaged is shown in the multi-
function display.
Manual drive program Mdiffers from drive
programs E(drive program Con AMG vehi-
cles) and Swith regard to spontaneity,
responsiveness and smoothness of gear
changes. Gear Driving situations
=
To use the engine's braking effect156
Automatic transmissionDriving and parking

5
To use the braking effect of the
engine on downhill gradients and
for driving:
R on steep mountain roads
R in mountainous terrain
R in arduous conditions 4
To use the braking effect of the
engine on extremely steep downhill
gradients and on long downhill
stretches Activating the manual drive program
Activating permanently
X Press the program selector button
(Y page 155) repeatedly until Mappears in
the multifunction display.
Manual drive program Mremains active
until drive program E(drive program Con
AMG vehicles) or Sis engaged.
Activating temporarily X Pull the right or left steering wheel gearshift
paddle (Y page 156).
M is shown in the multifunction display.
Manual drive program Mis temporarily
active. Depending on which gearshift pad-
dle is pulled, the automatic transmission
immediately shifts into the next gear down
or up.
i When manual drive program
Mis activa-
ted via the steering wheel gearshift pad-
dles, the temporarily active manual drive
program Mwill be deactivated automati-
cally after a limited time, if the driving sit-
uation permits. The automatic transmis-
sion switches to the previously activated
drive program E(drive program Con AMG
vehicles) or S. When driving on downhill
gradients, the temporarily active manual
drive program Mwill only be deactivated if
the accelerator pedal is depressed while
the vehicle is rolling downhill. Shifting up X
Pull the right-hand steering wheel gearshift
paddle (Y page 156).
The automatic transmission shifts up to the next gear.
i All vehicles (except AMG vehicles): in
order to prevent engine damage the auto-
matic transmission automatically shifts up:
R if the maximum engine speed on the cur-
rently engaged gear is reached and
R you depress the accelerator pedal.
AMG vehicles:
! In manual gearshift program
M, the auto-
matic transmission does not shift up auto-
matically even when the engine limiting
speed for the current gear is reached.
When the engine limiting speed is reached, the fuel supply is cut to prevent the engine
from overrevving. You must make sure that the engine speed does not reach the red
area of the rev counter. Otherwise, there is
a risk of engine damage.
AMG vehicles !
In manual gearshift program
M, the auto-
matic transmission does not shift up auto-
matically even when the engine limiting
speed for the current gear is reached.
When the engine limiting speed is reached,
the fuel supply is cut to prevent the engine from overrevving. You must make sure thatthe engine speed does not reach the red
area of the rev counter. Otherwise, there is
a risk of engine damage. :
Gear indicator
; Upshift indicator Automatic transmission
157Driving and parking Z

Before the engine speed reaches the red area,
an upshift indicator will be shown in the mul-
tifunction display.
X If the colour in the speedometer multifunc-
tion display changes to red and the UP UPdis-
play message is shown, shift up a gear.
Downshifting X
Pull the left-hand steering wheel gearshift
paddle (Y page 156).
The automatic transmission shifts down to
the next gear.
i If you slow down or stop without shifting
down, the automatic transmission auto-
matically shifts down.
i For maximum acceleration, pull the left-
hand steering wheel gearshift paddle until
the transmission selects the optimum gear for the current speed.
i If the engine exceeds the maximum
engine speed when shifting down, the auto-
matic transmission protects against engine damage by not shifting down.
Kickdown AMG vehicles:
it is only possible to use kick-
down in temporary manual drive program M.
You can also use kickdown for maximum
acceleration in manual drive program M.
X Depress the accelerator pedal beyond the
pressure point.
The transmission shifts to a lower gear
depending on the engine speed.
X Shift back up once the desired speed is
reached.
i During kickdown, you cannot shift gears
using the steering wheel gearshift paddles.
i If you apply full throttle, the automatic
transmission shifts up to the next gear
when the maximum engine speed is
reached. This prevents the engine from
overrevving. Deactivating the manual drive program X
Press the program selector button
(Y page 155) repeatedly until Eor S
appears in the multifunction display.
Deactivating the temporary manual drive program
X Pull and hold the right steering wheel gear-
shift paddle until the automatic transmis-
sion shifts into the last active automatic
drive program E(drive program Con AMG
vehicles) or S.
i When manual drive program
Mis deacti-
vated, the automatic transmission in auto-
matic drive program E(drive program Con
AMG vehicles) or Smay shift from the cur-
rent gear into a higher or lower gear. This is dependent on the position of the accelera-
tor pedal, speed and load. 158
Automatic transmissionDriving and parking

Problems with the transmission
Problem
Possible causes/consequences and
M
MSolutions The transmission has
problems shifting gear. The transmission is losing oil.
X Have the transmission checked at a qualified specialist work-
shop immediately. The acceleration ability
is deteriorating.
The transmission no
longer shifts into all of
the gears.
Reverse gear can no
longer be engaged. The transmission is in emergency mode.
X Stop.
X Shift the transmission to position P.
X Switch off the engine.
X Wait at least 10seconds before restarting the engine.
X Shift the transmission to position D.
X Have the transmission checked at a qualified specialist work-
shop immediately. Refuelling
Important safety notes
G
WARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is a risk of fire and explo-
sion.
You must avoid fire, naked flames, creating
sparks and smoking. Switch off the engine
and, if applicable, the auxiliary heating before refuelling. G
WARNING
Fuels are poisonous and hazardous to health. There is a danger of injury.
Do not swallow fuel or let it come into contact
with skin, eyes or clothing. Do not inhale fuel
vapours. Keep fuels out of the reach of chil-
dren.
If you or others come into contact with fuel,
observe the following:
R Wash the fuel off any affected areas of skin
with water and soap immediately.
R If you get fuel in your eyes, rinse them thor-
oughly with clean water immediately. Seek immediate medical attention. R
If fuel is swallowed, seek immediate medi-
cal attention. Do not induce vomiting.
R Change any clothing that has come into
contact with fuel immediately. G
WARNING
Electrostatic charge can cause sparks and
thereby ignite fuel vapours. There is a risk of
fire and explosion.
Always touch the vehicle body before opening the fuel filler flap or touching the fuel pump
nozzle. This discharges any electrostatic
charge that may have built up. G
WARNING
Vehicles with a diesel engine:
If you mix diesel fuel with petrol, the flash
point of this fuel mixture is lower than that of pure diesel fuel. When the engine is running,
components in the exhaust system may over-
heat unnoticed. There is a risk of fire.
Never refuel with petrol. Never add petrol to
diesel fuel.
! Do not use petrol to refuel vehicles with a
diesel engine. Do not use diesel to refuel
vehicles with a petrol engine. Do not switch Refuelling
159Driving and parking Z

on the ignition if you accidentally refuel
with the wrong fuel. Otherwise, the fuel will enter the fuel system. Even small amounts
of the wrong fuel could result in damage to the fuel system and the engine. The repair
costs are high. Notify a qualified specialist
workshop and have the fuel tank and fuel
lines drained completely.
! Overfilling the fuel tank could damage the
fuel system.
! Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
! Use a filter when adding fuel from a fuel
can. The fuel lines and/or the diesel injec-
tion system could otherwise be blocked by particles from the fuel can.
Do not get into the vehicle again during the
refuelling process. Otherwise, electrostatic
charge could build up again.
If you overfill the fuel tank, some fuel may
spray out when you remove the fuel pump
nozzle.
For further information on fuel and fuel quality (Y page 339). Refuelling
Opening/closing the fuel filler flap :
To open the fuel filler flap
; Tyre pressure table
= To insert the fuel filler cap
? Fuel type to be refuelled The fuel filler flap is unlocked or locked auto-
matically when you open or close the vehicle
with the key.
The position of the fuel filler cap is displayed
æ in the instrument cluster. The arrow
next to the filling pump indicates the side of
the vehicle.
Opening X
Switch off the engine.
X Remove the key from the ignition lock.
X Press the fuel filler flap in the direction of
arrow :.
The fuel filler flap swings up.
X Turn the fuel filler flap anti-clockwise and
remove it.
X Insert the fuel filler cap into holder on the
inside of fuel filler flap =.
X Completely insert the filler neck of the fuel
pump nozzle into the tank, hook in place
and refuel.
X Only fill the tank until the pump nozzle
switches off.
i Do not add any more fuel after the pump
stops filling for the first time. Otherwise,
fuel may leak out.
Closing X
Replace the cap on the filler neck and turn
clockwise until it engages audibly.
X Close the fuel filler flap.
i Close the fuel filler flap before locking the
vehicle. 160
RefuellingDriving and parking

Problems with the fuel and fuel tank
Problem
Possible causes/consequences and
M
MSolutions Fuel is leaking from the
vehicle. The fuel line or the fuel tank is faulty.
G WARNING
Risk of explosion or fire. X Turn the key to position 0in the ignition lock and remove it
immediately (Y page 143).
X Do not restart the engine under any circumstances.
X Consult a qualified specialist workshop. The engine does not
start. The fuel tank of a vehicle with a diesel engine has been run com-
pletely dry.
X Refuel the vehicle with at least 5 litres of diesel.
X Turn the ignition on for approximately ten seconds
(Y page 143).
X Start the engine continuously for a maximum of ten seconds
until it runs smoothly.
or
X Start the engine using the touch-start function. To do this, turn
the key to position 3in the ignition lock and then release it
immediately (Y page 143).
If the engine does not start: X Turn the ignition on again a maximum of ten seconds
(Y page 143).
X Start the engine again continuously for a maximum of ten sec-
onds until it runs smoothly.
or
X Start the engine again via the touch-start function.
If the engine does not start after three attempts:
X Consult a qualified specialist workshop. Refuelling
161Driving and parking Z

Problem
Possible causes/consequences and
M
MSolutions The fuel filler flap can-
not be opened. The fuel filler flap is not unlocked.
or
The key battery is discharged.
X Unlock the vehicle (Y page 75).
or
X Unlock the vehicle using the emergency key element
(Y page 75). The fuel filler flap is unlocked, but the opening mechanism is jam-
med.
X Consult a qualified specialist workshop. Parking
Important safety notes
G
WARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with hot parts of the exhaust system or exhaust
gas flow. There is a risk of fire.
Park the vehicle so that no flammable mate-
rial can come into contact with hot vehicle
components. In particular, do not park on dry grassland or harvested grain fields. G
WARNING
If you leave children unattended in the vehi-
cle, they may be able to set the vehicle in
motion if, for example, they:
R release the parking brake
R shift the automatic transmission out of park
position Por shift manual transmission into
neutral
R start the engine
In addition, they may operate vehicle equip-
ment and become trapped. 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. !
Always secure the vehicle correctly
against rolling away. Otherwise, the vehicle
or its drivetrain could be damaged.
To ensure that the vehicle is secured against
rolling away unintentionally:
R the electric parking brake must be applied.
R on vehicles with manual transmission,
engage first gear or reverse gear.
R on vehicles with automatic transmission,
the transmission must be in position Pand
the transmission position display must
show Pin the multifunction display.
R the key must be removed from the ignition
lock.
R on uphill or downhill gradients, the front
wheels must be turned towards the kerb. Switching off the engine
Important safety notes G
WARNING
The automatic transmission switches to neu-
tral position Nwhen you switch off the engine.
The vehicle may roll away. There is a risk of an
accident.
After switching off the engine, always switch
to parking position P. Prevent the parked vehi-162
ParkingDriving and parking