engine SMART FORTWO COUPE 2010 Workshop Manual

GWarning!
If other than recommended brake pads are
installed, or other than recommended brake
fluid is used, the braking properties of the
vehicle can be degraded to an extent that
safe braking is substantially impaired.
This could result in an accident.
GWarning!
New brake pads will not achieve their
optimal braking effect until after several
hundred miles (kilometers). This means
that you must compensate for the reduced
braking effect by pressing harder on the
brake pedal and adapt your driving style
accordingly. The same applies after brake
pads or brake discs have been changed.
Drive sensibly - save fuel
Fuel consumption, to a great extent,
depends on driving habits and operating
conditions.
To save fuel you should:
R Shift gears in a timely manner.
R Avoid frequent acceleration and
deceleration.
R Keep tires at the recommended inflation
pressures.
R Remove carriers* when not in use.
R Remove unnecessary loads.
R Allow engine to warm up under low load
use.
R Have all maintenance work performed at
the intervals specified in the
Maintenance Booklet and as required by
the Maintenance System. Contact an
authorized smart center.
Fuel consumption is also increased by
driving in cold weather, in stop-and-go
traffic, on short trips, and in hilly areas.
Catalytic converter
Your smart is equipped with monolithic-
type catalytic converter, an important
element in conjunction with the oxygen
sensors to achieve substantial control of
the pollutants in the exhaust emissions.
Keep your vehicle in proper operating
condition by following our recommended
maintenance instructions as outlined in
your Maintenance Booklet.GWarning!
The catalytic converter can become very
hot. Coming into contact with the catalytic
converter could result in burns.
Note the following:
R Do not remove the protective heat guards.
R Do not apply any underseal.
R As with any vehicle, do not idle, park, or
operate this vehicle in areas where
combustible materials such as grass,
hay, or leaves can come into contact with
the hot exhaust system, as these
materials could be ignited and cause a
vehicle fire.
! To prevent damage to the catalytic
converter, only use premium unleaded
gasoline in this vehicle.
Any noticeable irregularities in engine
operation should be repaired promptly.
Otherwise, excessive unburned fuel may
reach the catalytic converter, causing it
to overheat and potentially start a fire.
It is essential to observe the following
points, as there is otherwise a danger of
overheating and the catalytic converter
may be damaged.
R Fill up only with premium unleaded
gasoline. Even small quantities of
leaded gasoline can damage the catalytic
converter.
R Make sure you adhere to the prescribed
service intervals.
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RNever run the fuel tank empty.
R If the engine starts to misfire, bring the
vehicle to an immediate standstill
without endangering traffic.
R If the engine fails to start the first time,
you should not try to start it any more
than three times in succession.
R Do not try to start for more than four
seconds at a time.
Tires
GWarning!
If you feel a sudden significant vibration
or ride disturbance, or you suspect that
possible damage to your vehicle has
occurred, you should turn on the hazard
warning flashers, carefully slow down, and
drive with caution to an area which is a safe
distance from the road.
Inspect the tires and the vehicle underbody
for possible damage. If the vehicle or tires
appear unsafe, have the vehicle towed to the
nearest smart center or tire dealer for
repairs.
Treadwear indicators (TWI) are required by
law. These indicators are located in six
places on the tread circumference and
become visible at a tread depth of
approximately 1
/ 16 in (1.6 mm), at which
point the tire is considered worn and
should be replaced.
The treadwear indicator appears as a solid
band across the tread.
GWarning!
Although the applicable federal motor
vehicle safety laws consider a tire to be
worn when the treadwear indicators (TWI)
become visible at approximately 1
/ 16 in
(1.6 mm), we recommend that you do not allow
your tires to wear down to that level. As
tread depth approaches 1
/ 8 in (3 mm), the
adhesion properties on a wet road are
sharply reduced.
Depending upon the weather and/or road
surface (conditions), the tire traction
varies widely.
Specified tire inflation pressures must be
maintained. This applies particularly if
the tires are subject to high loads (e.g.
high speeds, heavy loads, high ambient
temperatures).GWarning!
Do not drive with a flat tire. A flat tire will
affect your ability to steer or brake and may
cause you to lose control of the vehicle.
Continued driving with a flat tire or
driving at high speed with a flat tire will
cause excessive heat build-up and possibly
a fire.
For more information, see “Tires and
wheels” ( Y page 114).
Hydroplaning
Depending on the depth of the water layer
on the road, hydroplaning may occur
resulting in a loss of control, even at low
speeds and with new tires. Reduce vehicle
speed, avoid track grooves in the road and
apply brakes cautiously when it is raining.
Tire traction
The safe speed on a wet, snow covered or icy
road is always lower than on a dry road.
You should pay particular attention to the
condition of the road whenever the outside
temperatures are close to the freezing
point.
GWarning!
If ice has formed on the road, tire traction
will be substantially reduced. Under such
weather conditions, drive, steer and brake
with extreme caution.
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efficiency should be tested as soon as
possible after driving is resumed.GWarning!
Make sure not to endanger any other road
users when carrying out these braking
maneuvers.
GWarning!
If the vehicle becomes stuck in snow, make
sure snow is kept clear of the exhaust pipe
and from around the vehicle with the engine
running. Otherwise, deadly carbon
monoxide (CO) gases may enter vehicle
interior resulting in unconsciousness and
death.
To assure sufficient fresh air ventilation,
open a window slightly on the side of the
vehicle not facing the wind.
GWarning!
The outside temperature display is not
designed to serve as an ice-warning device
and is therefore unsuitable for that
purpose. Indicated temperatures just
above the freezing point do not guarantee
that the road surface is free of ice.
For more information, see “Winter driving”
( Y page 132).
Standing water
! Do not drive through flooded areas or
water of unknown depth. Before driving
through water, determine its depth.
Never accelerate before driving into
water. The bow wave could force water
into the engine and auxiliary
equipment, thus damaging them.
If you must drive through standing water,
drive slowly to prevent water from entering
the passenger compartment, the front
compartment, or the engine compartment.
Water in these areas could cause damage to
electrical components or wiring of the
engine or transmission, or could result in
water being ingested by the engine through
the air intake, causing severe internal
engine damage.
Any such damage is not covered by the smart
Limited Warranty.
Passenger compartment
GWarning!
Always fasten items being carried as
securely as possible.
In an accident, during hard braking or
sudden maneuvers, loose items thrown
around inside the vehicle may injure
vehicle occupants.
The cargo compartment is the preferred
place to carry objects.
Control and operation of radio
transmitters
Radio and telephone
GWarning!
Please do not forget that your primary
responsibility is to drive the vehicle
safely. Only operate the radio or telephone
16 if road, weather and traffic conditions
permit.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet
(approximately 14 m) every second.
Telephones and two-way radios
GWarning!
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e.
without being connected to an external
antenna) from inside the vehicle while the
engine is running. Doing so could lead to a
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malfunction of the vehicle’s electronic
system, possibly resulting in an accident
and/or serious personal injury.
Radio transmitters, such as a mobile phone
or a citizens band unit should only be used
inside the vehicle if they are connected to
an antenna that is installed on the outside
of the vehicle.
Refer to the radio transmitter operation
instructions regarding use of an external
antenna.
Emission control
Certain engine systems serve to keep the
toxic components of the exhaust gases
within permissible legal limits.
These systems, of course, will function
properly only when maintained strictly
according to factory specifications.
Any adjustments to the engine should
therefore be carried out only by qualified
smart center authorized technicians.
Engine adjustments should not be altered
in any way. Moreover, the specified service
jobs must be carried out regularly
according to smart servicing
requirements. For details refer to the
Maintenance Booklet.
GWarning!
Inhalation of exhaust gas is hazardous to
your health. All exhaust gas contains
carbon monoxide (CO), and inhaling it can
cause unconsciousness and lead to death.
Do not run the engine in confined areas
(such as a garage) which are not properly
ventilated. If you think that exhaust gas
fumes are entering the vehicle while
driving, have the cause determined and
corrected immediately. If you must drive
under these conditions, drive only with at
least one window fully open at all times.
Coolant temperature
During severe operating conditions and
stop-and-go city traffic, the coolant
temperature may rise.
! Excessive coolant temperature causes
the red coolant temperature warning
lamp 00AE in the instrument cluster
comes on.
The engine should not be operated with
the red coolant temperature warning
lamp illuminated. Doing so may cause
serious engine damage which is not
covered by the smart Limited Warranty.
For more information on coolant
temperature warning lamp ( Y page 156).GWarning!
Driving when your engine is overheated can
cause some fluids which may have leaked
into the engine compartment to catch fire.
You could be seriously burned.
Steam from an overheated engine can cause
serious burns which can occur just by
opening the engine hood. Stay away from the
engine if you see or hear steam coming from
it.
Stop the vehicle in a safe location away
from other traffic. Turn off the engine, get
out of the vehicle and do not stand near the
vehicle until the engine has cooled down.
Driving abroad
Abroad, there is an extensive smart service
network at your disposal. If you plan to
drive into areas which are not listed in the
index of your smart center directory, you
should request pertinent information from
an authorized smart center.
Symmetrical low beams
i If you drive in countries where
vehicles drive on the other side of the
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Display messagesPossible causes/consequences and 0050 SolutionsThe electronic immobilizer is not working.XHave the system checked at an authorized smart center.There is a malfunction in the shifting system.XHave the system checked at an authorized smart center.The transmission is taught-in ( Y page 83).XHave the system checked at an authorized smart center.What to do if ...
Warning and indicator lamps in the
instrument cluster
General information
If any of the following lamps in the
instrument cluster fails to come on during
the bulb self-check when switching on
ignition ( Y page 55), have the respective
bulb checked and replaced if necessary.
Brake
ProblemPossible causes/consequences and 0050 Solutions00EB (USA only)
0031 (Canada only)
The ABS indicator
lamp illuminates
while the engine is
running.There is a malfunction in the ABS system.XHave the ABS system checked at an authorized smart center
immediately.00EB (USA only)
0031 (Canada only)
The ABS indicator
lamp illuminates
together with the
brake warning lamp
while the engine is
running.The ABS system fails.XStop the vehicle immediately in a safe location.XDo not continue to drive.XTurn off the engine.XEngage the parking brake when leaving the vehicle.XContact Roadside Assistance or an authorized smart center.What to do if ...149>> Practical hints.451_AKB; 3; 22, en-USd2ureepe,Version: 2.11.8.12009-07-27T09:36:34+02:00 - Seite 149Z

GWarning!
When the ABS system is malfunctioning, the wheels may lock during hard braking, reducing
steering capability and extending the braking distance.
When the ABS is switched off due to a malfunction, the ESP ®
is also switched off. The basic
driving and braking functions are still available.
The risk of your vehicle skidding is then increased in certain situations. You should
therefore always adapt your speed and driving style to the prevailing road and weather
conditions.
ProblemPossible causes/consequences and 0050 Solutions0027 (USA only)
004D (Canada only)
The brake warning
lamp illuminates
while the engine is
running.You are driving with the parking brake engaged.XRelease the parking brake.The brake circuit fails or the brake fluid level in the brake
fluid reservoir is too low.XStop the vehicle immediately in a safe location.XDo not continue to drive.XTurn off the engine.XDo not add brake fluid as this will not solve the problem.XEngage the parking brake when leaving the vehicle.XContact Roadside Assistance or an authorized smart center.0027 (USA only)
004D (Canada only)
The brake warning
lamp illuminates
together with the ABS
indicator lamp while
the engine is running.The ABS system fails.XStop the vehicle immediately in a safe location.XDo not continue to drive.XTurn off the engine.XEngage the parking brake when leaving the vehicle.XContact Roadside Assistance or an authorized smart center.GWarning!
Driving with the brake warning lamp illuminated can result in an accident. Have your brake
system checked immediately if the brake warning lamp stays on.
Do not add brake fluid before checking the brake system.
! If you find that the brake fluid in the brake fluid reservoir has fallen to the minimum
mark or below, have the brake system checked for brake pad thickness and leaks
immediately. Contact an authorized smart center immediately. Do not add brake fluid
as this will not solve the problem.
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Safety systems ProblemPossible causes/consequences and 0050 Solutions0082The seat belt
telltale
illuminates
constantly for a
maximum of
6 seconds after
starting the
engine.Regardless of whether the seat belt is fastened or not, the seat
belt telltale always comes on and remains lit for 6 seconds
after starting the engine.XFasten your seat belts.0082The seat belt
telltale
illuminates
constantly. An
additional
warning chime
sounds for a
maximum of
6 seconds after
starting the
engine.The driver’s seat belt is unfastened.XFasten your seat belts.0082The seat belt
telltale flashes
with
increasing
frequency of a
warning chime
for a maximum
of 60 seconds.The vehicle speed once exceeds 15 mph (25 km/h), and both the
driver’s and passenger seat belt are unfastened.XFasten your seat belts.
If the driver’s or the passenger seat belt remains unfastened
after 60 seconds, the warning chime stops sounding. The seat
belt telltale stops flashing but continues to be illuminated.
The seat belt telltale will only go out if both the driver’s and
the passenger seat belt (with the passenger seat occupied) are
fastened, or the vehicle is standing still and a door is opened.
0081Scenario 1:
The SRS
indicator lamp
illuminates
when the
ignition is
switched on and
goes out after a
maximum of
4 seconds.The subsequent self check of the safety systems detected no
malfunction. The supplemental restraint system is
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ProblemPossible causes/consequences and 0050 Solutions0081Scenario 2:
The SRS
indicator lamp
illuminates
when the
ignition is
switched on and
goes out after a
maximum of
4 seconds for
approximately
1 second, then it
comes on again
and stays on.There is a malfunction in the supplemental restraint systems.
The air bags or Emergency Tensioning Devices could deploy
unexpectedly or fail to deploy in an accident.XDo not sit on the passenger seat; this applies particularly
to children.XHave the system checked at an authorized smart center.GWarning!
If the SRS indicator lamp does not come on when you switch on the ignition or does not go
out again after a few seconds once the engine is running or comes on again, the supplemental
restraint systems are malfunctioning.
In the event that a malfunction of the SRS is indicated as described in scenario 2, the SRS
may not be operational. For your safety, we strongly recommend that you contact an
authorized smart center immediately to have the system checked; A malfunctioning SRS
system may not deploy when needed in an accident resulting in serious or fatal injury, or
it might deploy unexpectedly and unnecessarily which could result in an accident and/or
injury to you or to others.
! If the SRS indicator lamp comes on while driving, have the system checked at an
authorized smart center immediately.
It is possible that the air bag and the emergency tensioning device could be activated
unintentionally or will not function in the event of an accident.
i Information on the operating principle of the air bags can be found in the “Safety”
section ( Y page 33).
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ProblemPossible causes/consequences and 0050 Solutions0067The ESP ®
warning lamp
flashes while
driving.The ESP ®
has engaged because of detected traction loss in at
least one tire.XWhen driving off, apply as little throttle as possible.XWhile driving, ease up on the accelerator pedal.XAdapt your speed and driving to the prevailing road and
weather conditions.0067The ESP ®
warning lamp
illuminates
continuously
while the
engine is
running.The ESP ®
is not operational due to a system failure.XHave the system checked at an authorized smart center.The ESP ®
is not available.XHave the system checked at an authorized smart center.GWarning!
When the ESP ®
warning lamp is illuminated continuously, the ESP ®
is not available or not
operational due to a system failure.
Adapt your speed and driving to the prevailing road conditions and the non-operating status
of the ESP ®
.
i It may be possible to clear a system failure by restarting the engine.
XRestart the engine.
If the warning lamp still does not go out, have the system checked at an authorized smart
center immediately.
i More information on the ESP ®
can be found in the “Safety” section ( Y page 45).
ProblemPossible causes/consequences and 0050 Solutions0052The EPS*
warning lamp
illuminates
while the
engine is
running.The Electronic Power Steering (EPS)* is not available.XHave the EPS* checked at an authorized smart center
immediately.GWarning!
When the EPS* is not available a higher degree of effort is necessary to steer the vehicle.
Have the system checked at a smart center.
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VehicleProblemPossible causes/consequences and 0050 Solutions003FThe battery
indicator lamp
illuminates
while driving
or does not go
out after the
engine is
started.The alternator is malfunctioning. The battery is no longer
charged.XStop the vehicle immediately in a safe location.XDo not continue to drive.XTurn off the engine.XEngage the parking brake when leaving the vehicle.XContact Roadside Assistance or an authorized smart center.The poly-V-belt is broken. The battery is no longer charged.XStop the vehicle immediately in a safe location.XDo not continue to drive.XTurn off the engine.XEngage the parking brake when leaving the vehicle.XContact Roadside Assistance or an authorized smart center.
!
Among other possible causes, the poly-V-belt could be broken. Do not continue to
drive. Otherwise, the engine will overheat due to an inoperative water pump which may
result in damage to the engine.
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