Page 220 of 314

Driving instructions
>> Operation
219
Road salts and chemicals can adversely affect
braking efficiency. Increased pedal force may
become necessary to produce the normal
braking effect.
Depressing the brake pedal periodically when
traveling at length on saltstrewn roads can
bring roadsaltimpaired braking efficiency
back to normal.
If the vehicle is parked after being driven on
salttreated roads, the braking efficiency
should be tested as soon as possible after
driving is resumed.For more information, see "Winter driving"
(
page 208).
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 com
partment, or the engine compartment. Water
in these areas could cause damage to electri
cal 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.
G
Warning!
Make sure not to endanger any other
road users when carrying out these
braking maneuvers.
G
Warning!
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 uncon
sciousness and death.
To assure sufficient fresh air ventilation,
open a window slightly on the side of the
vehicle not facing the wind.G
Warning!
The outside temperature display is not
designed to serve as an icewarning
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.
Page 277 of 314

Jump starting
276
>> Practical hints.
!
Do not tow start vehicle.
!
Avoid repeated and lengthy starting
attempts.
Do not attempt to start the engine using a
battery quick charge unit.
If the engine does not run after several
unsuccessful starting attempts, have it
checked at the nearest authorized smart cen
ter.
Excessive unburned fuel generated by
repeated failed starting attempts may damage
the catalytic converter and may present a fire
risk.
Make sure the jumper cables do not have loose
or missing insulation.
Make sure the cable clamps do not touch any
other metal part while the other end is still
attached to a battery.If the battery is discharged, the engine can be
started with jumper cables and the battery of
another vehicle. Observe the following:
• Jump starting should only be performed
when the engine and catalytic converter are
cold.
• Do not start the engine if the battery is
frozen. Let the battery thaw out first.
• Only jump start from batteries with the
same voltage rating (12 V). Jump starting
with a higher voltage battery could damage
the vehicle’s electrical system, which will
not be covered by the smart Limited
Warranty.
• Only use jumper cables with sufficient
crosssection and insulated terminal
clamps.
• Always make sure the jumper cables are not
on or near pulleys, fans or other parts that
move when an engine is started or running.
G
Warning!
Failure to follow these directions will
cause damage to the electronic compo
nents, and can lead to a battery explosion
and severe injury or death.
Never lean over batteries while connect
ing or jump starting, you might get in
jured.
Battery fluid contains sulfuric acid. Do
not allow this fluid to come in contact with
eyes, skin or clothing. In case it does, im
mediately flush affected area with water,
and seek medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and very explosive.
K e e p f l a m e s o r s p a r k s a w a y f r o m b a t t e r y ,
avoid improper connection of jumper
cables, smoking, etc.
Attempting to jump start a frozen battery
can result in it exploding, causing per
sonal injury.
Read all instructions before proceeding.
Page 292 of 314

Engine electronics
>> Technical data.
291
The transmitting power of the telephone or
radio must not exceed the following maximum
values.Frequency range
(band)
Maximum transmit
ting power (Watts)
Short wave (<50 MHz)
100
2 m wavelength
50
0.7 m wavelength
35
0.25 m wavelength
10
G
Warning!
Radio transmitters can interfere with the
vehicle's electronic system, endanger
the operating safety of the vehicle and
thus your own safety, if
• there is no external antenna
• the external antenna is not lowreflec
tion
• the external antenna is incorrectly in
stalled
Excessive electromagnetic radiation can
damage your health and that of others.
Using an external antenna addresses and
considers the concerns currently being
discussed in scientific circles about the
health hazards possibly posed by elec
tromagnetic fields.
Because of this, have the external anten
na installed exclusively at a qualified
specialist workshop which has the neces
sary specialist knowledge and tools to
carry out the work required, e.g. at a
smart center. In particular, work rele
vant to safety or on safetyrelated sys
tems must be carried out at a qualified
specialist workshop.
Page 303 of 314
Main dimensions
302
>> Technical data.
Main dimensions
All models
Overall vehicle length
106.1 in (2 695 mm)
Overall vehicle width (exterior rear view mirrors folded out)
69.0 in (1752 mm)
Overall vehicle width (exterior rear view mirrors folded in)
61.4 in(1559 mm)
Overall vehicle height
60.7 in (1 542 mm)
Wheelbase
73,5 in (1 867 mm)
Track, front
50.5 in (1 283 mm)
Track, rear
54.5 in (1 385 mm)
Turning circle
28.7 ft (8.75 m)