engine SMART FORTWO 2016 Service Manual

XTo switch off:press the0078button.
The indicator lamp under the 0078button
lights up.
or
XPress the 00F3button repeatedly until all
the indicator lamps go out.
Switching cooling with air dehumidi-
fication on/off
General notes
If you deactivate the "Cooling with air-dehu-
midification" function, the air inside the
vehicle will not be cooled. The air inside the
vehicle will also not be dehumidified. The
windows can fog up more quickly. Therefore,
deactivate the cooling with air-dehumidifi-
cation function only briefly.
The "Cooling with air dehumidification"
function is only available when the engine is
running. The air inside the vehicle is cooled
and dehumidified according to the tempera-
ture selected.
The "Cooling with air dehumidification"
function does not function when the outside
temperature is low.
Condensation may drip from the underside of
the vehicle when it is in cooling mode. This
is normal and not a sign that there is a mal-
function.
Switching on/off
XStart the engine (Ypage 87).
XTo activate: press the00F2and005A but-
tons.
The indicator lamp in the 005Abutton
lights up.
XTo deactivate: press the005Abutton.
The indicator lamp in the 005Abutton goes
out.
Setting climate control to automatic
General notes
In automatic mode, the set temperature is
maintained automatically at a constant level. The system automatically regulates the air- flow and the air distribution according to the
temperature.
Automatic control
XTurn the ignition key to position
1or 2or
start the engine (Ypage 87).
XTo activate: press the0058button.
The indicator lamp in the 0058button
lights up.
XTo switch to manual mode: press the00F2or
00F3 button.
or
XPress the Á,009Cor009B button.
or
XPress the 0064button.
The indicator lamp in the 0058button goes
out.
iIf you manually change one of the func-
tions, the indicator lamp in the 0058but-
ton goes out. All further functions will
still be automatically controlled.
Setting the temperature
XStart the engine (Ypage 87).
XTo increase or reduce: push temperature
slide 006Eto the right or left (Ypage 80).
Push slide 006Eall the way to the right or left
(
Ypage 80).
Only change the temperature setting in small
increments. Start at 72 ‡(22 †).
Setting the air distribution
Air distribution settings
Á Directs air through the defroster vents
009C Directs the airflow to the center and
side air vents
009B Directs air through the footwell air
vents
iYou can also activate several air distri-
bution settings simultaneously. To do this,
press multiple air distribution buttons.
The air is then directed through various
vents.
Operating the climate control systems81
>> Climate control.

Recommendation for air distribution in
winter:set toÁand009B.
Recommendation for air distribution in
summer: set to009C.
Setting the air distribution
XStart the engine (Ypage 87).
XPress one or more of the Á,009Cand
009B buttons.
The indicator lamp next to the selected
button lights up.
Setting the airflow
XStart the engine (Ypage 87).
XTo increase: press the00F2button.
Each time the 00F2button is pressed, one of
the indicator lamps next to the airflow but-
tons lights up.
XTo reduce: press the00F3button.
Each time the 00F3button is pressed, one of
the indicator lamps next to the airflow but-
tons goes out.
Defrosting the windshield
General notes
You can use this function to defrost the wind-
shield or to clear a fogged up windshield or
front side windows on the inside.
iYou should only select the "Windshield
defrosting" function until the windshield
is clear again.
Switching on/off
XTurn the ignition key to position 1or 2or
start the engine (Ypage 87).
XTo activate: press the0064button.
The indicator lamp above the 0064button
lights up. The 0058automatic mode is
deactivated.
The 0064 "Defrosting the windshield"
function switches automatic climate con-
trol to the following functions:
Rcooling with air dehumidification on
Rhigh airflow
Rair distribution to the windshield and
front side windows
Rair-recirculation mode off
XTo deactivate: press the0064button.
or
XPress the 0058button.
or
XPress the Àbutton.
or
XPress the Á,009Cor009B button.
The indicator lamp above the 0064button
goes out.
Demisting the windows
Windows fogged up on the inside
XActivate the 005A"Cooling with air dehu-
midification" function.
XActivate automatic mode 0058.
XIf the windows continue to fog up, activate
the "Windshield defrosting" func-
tion 0064.
iYou should only select this setting until
the windshield is clear again.
Windows fogged up on the outside
XActivate the windshield wipers.
XSet the air distribution to 0064.
iYou should only select this setting until
the windshield is clear again.
Rear window defroster
General notes
The rear window defroster has a high current
draw. You should therefore switch it off as
soon as the rear window is clear.
The rear window defroster can only be
switched on or off while the engine is run-
ning.
The rear window defroster switches off auto-
matically after approximately 10 minutes.
Vehicles with heated exterior mirrors: the
exterior mirrors will also be heated when you
switch on the rear window defroster. The mir-
82Operating the climate control systems
>> Climate control.

ror heating is switched off together with the
rear window defroster.
Switching on/off
XStart the engine (Ypage 87).
XTo activate:press the006Cbutton.
The indicator lamp above the 006Cbutton
lights up.
XTo deactivate: press the006Cbutton.
The indicator lamp above the 006Cbutton
goes out.
Operating the climate control systems83
>> Climate control.

Problems with the rear window defroster
ProblemPossible causes/consequences and0050Solutions
The rear window
defroster has deacti-
vated prematurely or
cannot be activated.The battery has not been sufficiently charged.
XSwitch 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
defroster can be activated again.
Switching the air-recirculation mode
on/off
General notes
You can deactivate the flow of fresh air tem-
porarily if unpleasant odors are entering the
vehicle from outside or if you are driving
through a tunnel. The air already inside the
vehicle will then be recirculated.
If you switch on air-recirculation mode, the
windows can fog up more quickly, in partic-
ular at low temperatures. Only use air-recir-
culation mode briefly to prevent the windows
from fogging up.
Switching on/off
XStart the engine (Ypage 87).
XTo activate: press theÀbutton.
The indicator lamp above the Àbutton
lights up.
XTo deactivate: press theÀbutton.
or
XPress the 0064button.
or
XPress the 0058button.
The indicator lamp above the Àbutton
goes out.
Setting the air vents
Important safety notes
GWARNING
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
outlets. If necessary, redirect the airflow
to another area of the vehicle interior.
GWARNING
If you spray cleaning products or disin-
fectant into the ventilation system of the
vehicle, this could ignite. There is a risk
of fire.
Never spray these or any other substances
into the ventilation system. Always have
work on the ventilation system carried out
at a qualified specialist workshop.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle inte-
rior, please observe the following notes:
Rkeep the air inlet between the service
cover and the windshield free of blockages,
such as ice, snow or leaves.
Rnever cover the air vents or air intake
grilles in the vehicle interior.
iFor optimum climate control in the vehi-
cle, open the air vents fully.
84Setting the air vents
>> Climate control.

Useful information
i
This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's Man- ual. Country-specific differences are pos-
sible. Bear in mind that your vehicle may
not feature all functions described here.
This also applies to safety-relevant sys-
tems and functions.
iRead the information on qualified spe-
cialist workshops: (Ypage 20).
Notes on breaking-in a new vehicle
Important safety notes
In certain driving and driving safety sys-
tems, the sensors adjust automatically while
a certain distance is being driven after the
vehicle has been delivered or after repairs.
Full system effectiveness is not reached until
the end of this teach-in procedure.
New and replaced brake pads and discs only
reach their optimum braking effect after sev-
eral hundred kilometers of driving. Compen-
sate for this by applying greater force to the brake pedal.
The first 1000 miles (1500 km)
The more you look after the engine when it is
new, the more satisfied you will be with its
performance in the future.
RYou should therefore drive at varying vehi-
cle and engine speeds for the first
1000 miles (1500 km).
RAvoid heavy loads, e.g. driving at full
throttle, during this period.
RChange gear in good time, before the tach-ometer needle is 00C3of the way to the red
area of the tachometer.
RDo not manually shift to a lower gear to
brake the vehicle.
RVehicles with automatic transmission: if
possible, do not depress the accelerator pedal beyond the pressure point (kick-
down).
RVehicles with automatic transmission:
ideally, for the first 1000 miles(1500 km),
drive in program
E(Comfort).
After 1000 miles (1500 km), you can increase
the engine speed gradually and bring the
vehicle to full speed.
You should also observe these notes on run-
ning-in if the engine or parts of the drive
train on your vehicle have been replaced.
Observe the maximum permissible speed.
Driving
Important safety notes
GWARNING
Objects in the driver's footwell can
restrict the pedal travel or obstruct a
depressed pedal. The operating and road
safety of the vehicle is jeopardized. There
is a risk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats securely and as specified in order to
ensure sufficient clearance for the pedals.
Do not use loose floormats and do not place
floormats on top of one another.
GWARNING
Unsuitable footwear can hinder correct
usage of the pedals, e.g.:
Rshoes with thick soles
Rshoes with high heels
Rslippers
There is a risk of an accident.
Wear suitable footwear to ensure correct
usage of the pedals.
GWARNING
If you switch off the ignition while driv-
ing, safety-relevant functions are only
available with limitations, or not at all.
This could affect, for example, the power
86Driving
>> Driving and parking.

steering and the brake boosting effect. Youwill require considerably more effort to
steer and brake. There is a risk of an acci-
dent.
Do not switch off the ignition while driv-
ing.
GWARNING
If the parking brake has not been fully
released when driving, the parking brake
can:
Roverheat and cause a fire
Rlose its hold function.
There is a risk of fire and an accident.
Release the parking brake fully before
driving off.
!Do not warm up the engine with the vehicle
stationary. Drive off immediately. Avoid
high engine speeds and driving at full
throttle until the engine has reached its
operating temperature.
Only shift the automatic transmission to
the desired drive position when the vehi-
cle is stationary.
Where possible, avoid spinning the drive
wheels when pulling away on slippery
roads. You could otherwise damage the
drive train.
SmartKey positions
005ATo remove the SmartKey
0047Power supply for some consumers, such as
the windshield wipers
0048Ignition (power supply for all consumers)
and drive position
0049Starting the engine
The steering is locked when you remove the
SmartKey from the ignition lock.
Starting the engine
Important safety notes
GWARNING
If children are left unsupervised in the
vehicle, they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehi-
cle in motion if, for example, they:
Rrelease the parking brake.
Rshift the automatic transmission out of
park position P or shift manual trans-
mission into neutral.
Rstart the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle.
Never leave children or animals unattended
in the vehicle. Always keep the SmartKey
out of reach of children.
GWARNING
Combustion engines emit poisonous
exhaust gases such as carbon monoxide.
Inhaling these exhaust gases leads to poi-
soning. There is a risk of fatal injury.
Therefore never leave the engine running
in enclosed spaces without sufficient ven- tilation.
GWARNING
Flammable materials introduced through
environmental influence or by animals can
ignite if in contact with the exhaust system
Driving87
>> Driving and parking.
Z

or parts of the engine that heat up. There is
a risk of fire.
Carry out regular checks to make sure that
there are no flammable foreign materials
in the engine compartment or in the exhaust
system.
!Do not depress the accelerator when
starting the engine.
iDuring a cold start, the engine runs at
higher speeds to enable the catalytic con-
verter to reach its operating temperature.
The sound of the engine may change during
this time.
Manual transmission
XDepress the brake pedal and keep it
depressed.
XDepress the clutch pedal fully.
XShift to neutral.
Automatic transmission
XShift the transmission to position P
(Ypage 92).
The transmission position display in the
multifunction display shows P
(
Ypage 92).
iYou can start the engine in transmission
positions Pand N.
In order to start the engine in transmission
position Nyou must depress the brake pedal
and keep it depressed.
Starting procedure
XTurn the key to position 3in the ignition
lock (Ypage 87) and release it as soon as the
engine is running.
Pulling away
General notes
GWARNING
Vehicles with automatic transmission:
If the engine speed is above the idling
speed and you engage transmission posi-
tion Dor R, the vehicle could pull away
suddenly. There is a risk of an accident.
When engaging transmission position Dor
R, always firmly depress the brake pedal
and do not simultaneously accelerate.
!Vehicles with manual transmission:
change gear in good time and avoid spin-
ning the wheels. You could otherwise dam-
age the vehicle.
!Release the parking brake before driving
off. The parking brake can otherwise over-
heat, malfunction and wear out quickly.
Accelerate gently when pulling away.
The vehicle locks centrally once you have
pulled away.
You can open the doors from the inside at any
time.
You can also deactivate the automatic locking
feature (
Ypage 55).
Vehicles with automatic transmission: you
can only shift the transmission from position
P to the desired transmission position if:
Rthe ignition is switched on
Ryou depress the brake pedal and keep it
depressed and
Ryou press release button on the selector
lever (Ypage 92).
Only then is the shift lock released.
iVehicles with automatic transmission:
transmission shifts take place at higher
engine speeds after a cold start. This helps
the catalytic converter to reach its oper-
ating temperature more quickly.
Hill start assist
Hill start assist helps you when pulling away forwards or in reverse on an uphill gradient.
It holds the vehicle for a short time after you have removed your foot from the brake pedal.
This gives you enough time to move your foot
from the brake pedal to the accelerator pedal
and to depress it before the vehicle begins to
roll.
GWARNING
After a short time, hill start assist will no
longer brake your vehicle and it could roll
88Driving
>> Driving and parking.

Problems with the engine
ProblemPossible causes/consequences and0050Solutions
The engine does not
start. The starter motor
can be heard.RThere is a malfunction in the engine electronics.
RThere is a malfunction in the fuel supply.
XSwitch off the engine before attempting to start the engine
again (Ypage 101).
XTry to start the engine again (Ypage 87). Avoid excessively long
and frequent attempts to start the engine as these will drain the
battery.
If the engine does not start after several attempts:
XConsult a qualified specialist workshop.
The engine does not
start. You cannot hear
the starter motor.The on-board voltage is too low because the battery is too weak or
discharged.
XJump-start the vehicle (Ypage 168).
If the engine does not start despite attempts to jump-start it:
XConsult a qualified specialist workshop.
The starter motor was exposed to a thermal load that was too high.
XAllow the starter motor to cool down for approximately two
minutes.
XTry to start the engine again.
If the engine still does not start:
XConsult a qualified specialist workshop.
The engine is not run-
ning smoothly and is
misfiring.There is a malfunction in the engine electronics or in a mechan-
ical component of the engine management system.
XOnly depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it.
XHave the cause rectified immediately at a qualified specialist
workshop.
The coolant tempera-
ture exceeds 230 ‡
(110 †). The red coolant
temperature warning
lamp comes on while the
engine is running. A
warning tone also
sounds. The Stop
Switch Off Enginemessage appears.
The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
XStop as soon as possible and allow the engine and the coolant to
cool down.
XCheck the coolant level (Ypage 153). Observe the warning notes
as you do so and add coolant if necessary.
90Driving
>> Driving and parking.

Manual transmission
Gear lever
!
Only engage gear when the clutch pedal is
depressed.
!When shifting into 5thgear, you should
always push the gear lever all the way to the
right. You could otherwise shift uninten-
tionally into 3rdgear and damage the
transmission.
If you shift down at too high a speed (trans-
mission braking), this can cause the engine
to overrev, leading to engine damage.
Never hold the vehicle stopped on a hill by
using the clutch pedal. There is otherwise
a risk of damaging the clutch.
!On long and steep downhill gradients,
especially if the vehicle is laden, you must
shift into gear 1,2or 3in good time. By
doing so, you will make use of the braking
effect of the engine. This relieves the load
on the brake system and prevents the brakes
from overheating and wearing too quickly.
0047 -004BForward gears
005EReverse gear
Shifting to neutral
XDepress the clutch pedal fully.
XMove the gearshift lever to position 0043.
Engaging reverse gear
!
Only shift into reverse gear Rwhen the
vehicle is stationary. Otherwise, you could
damage the transmission.
All vehicles except for smart 66 kw Turbo
XShift to neutral (Ypage 91).
XPress the gear lever to the right and then
pull it back.
smart 66 kw Turbo
XShift to neutral (Ypage 91).
XPull collar 0043upwards.
XPress the gear lever to the right and then
pull it back.
Shift recommendation
The gearshift recommendations assist you in
adopting an economical driving style.
Manual transmission91
>> Driving and parking.
Z

XShift one gear up or down according to
gearshift recommendation0043when shown
in the multifunction display of the instru-
ment cluster.
Further information on the transmission dis-
play (
Ypage 111).
Automatic transmission
Important safety notes
GWARNING
If the engine speed is above the idling
speed and you engage transmission posi-
tion Dor R, the vehicle could pull away
suddenly. There is a risk of an accident.
When engaging transmission position Dor
R, always firmly depress the brake pedal
and do not simultaneously accelerate.
GWARNING
The automatic transmission switches to
neutral 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 vehicle from rolling away by apply-
ing the parking brake.
Selector lever
005DPark position with parking lock
005EReverse gear
005CNeutral
005BDrive
XTo shift transmission position: press
release button 0043and shift the gear lever
to the desired transmission position.
When you shift the transmission from posi-
tions Nor Pto position R, the ignition must
also be switched on.
iWhen you shift the transmission from
positions Dor Rto position N, you do not
need to press release button 0043.
Transmission position and drive pro-
gram display
The current transmission position and drive
program appear in the multifunction display.
0043Transmission position display
0044Drive program display
92Automatic transmission
>> Driving and parking.