
Control panels HVAC
Heating
\000F Air volume control\000G Rear window defroster switch\000

Air conditioning with climate control*
Control panel (Y page 104).
XMake sure the engine is running.XSwitching on: Push air volume
control 0046 to level 1 or higher.XPress air conditioning switch 0047.
The indicator lamp in air conditioning
switch 0047 comes on.XSwitching off: Press air conditioning
switch 0047 once more.
The indicator lamp in air conditioning
switch 0047 goes out.
i
The stored status is restored, if you
switch on the ignition again.
i The air condition will be suspended
temporarily:
R if the engine speed is too low
R when driving off
The air condition is switched off:
R at a coolant temperature of more than
239 ¦ (115 ¥)
R at outside temperatures below 38 ¦
(3 ¥ )
Setting the temperature
Heating
Control panel ( Y page 104).
i You should raise or lower the
temperature setting in small
increments.
XIncreasing or decreasing: Push
temperature control 0088 up or down.
Rapid cooling
XPush air volume control 0046 fully up.XTurn air distribution control 008A to
position 009E.XPush temperature control 0088 fully down.XAdjust the air vents as desired.
Rapid heating
XPush air volume control 0046 to level 3.XTurn air distribution control 008A to a
position between 0087 and 009D .XPush temperature control 0088 fully up.XAdjust the air vents towards the
occupants.
Air conditioning with climate control*
Control panel ( Y page 104).
i You should raise or lower the
temperature setting in small
increments, preferably starting at
70 ¦ (21 ¥).
XIncreasing or decreasing: Push
temperature control 0086 up or down.
Adjusting air vents
GWarning!
When operating the heating or air
conditioning with climate control*, the
air that enters the passenger compartment
through the air vents can be very hot or very
cold (depending on the set temperature).
This may cause burns or frostbite on
unprotected skin in the immediate area of
the air vents. Always keep sufficient
distance between unprotected parts of the
body and the air vents. If necessary, use the
air distribution control to direct the air
to air vents in the vehicle interior that are
not in the immediate area of unprotected
skin.
To make sure the heating or air
conditioning with climate control* works
properly, please observe the following:
R Keep the air intake grill free from
deposits, e.g. ice or snow, to ensure that
HVAC (Heating, Ventilation, Air Conditioning)105>> Controls.* optionalBA 451 USA, CA Edition A 2011; 1; 4, en-UShereepeVersion: 3.0.3.62010-05-11T15:12:26+02:00 - Seite 105Z

Adjusting air volume
The air volume is controlled depending on
the blower speed selected. Five blower
speeds are available.
0Off1Slow2Medium3High/defrosting4MaximumXIncreasing or decreasing: Push air
volume control \000F up or down.
Defrosting
GWarning!
Never drive with iced up or fogged
windows. Visibility will be significantly
impaired. Impaired visibility could
endanger yourself and others. This may
prevent you from observing the traffic
conditions, thereby causing an accident.
The best defrosting of windows is achieved
if the ice is completely removed from the
windows manually with an ice scraper
before starting the engine.
Heating
Control panel (Y page 104).
XSwitching on: Push air volume
control \000F to level 3.
XTurn air distribution control \000

Auxiliary power outlet
The auxiliary power outlet supplies power
to the following electrical accessories
when the key is turned to starter switch
position 1:
R the cigarette lighter*, available in
conjunction with the ashtray*
R the electric air pump, available in
conjunction with the tire repair kit*
R other consumers which operate up to a
maximum of 60 W
! The auxiliary power outlet can
accommodate 12V DC electrical
accessories designed for use with the
standard “cigarette lighter” plug type.
Keep in mind, however, that connecting
accessories to the auxiliary power outlet
(for example extensive connecting and
disconnecting, or using plugs that do not
fit properly) can damage the auxiliary
power outlet. With the auxiliary power
outlet damaged, the cigarette lighter*
may no longer be able to be placed in the
heating (pushed-in) position, or may pop
out before it is hot enough.
The auxiliary power outlet is located in the
lower center console.
Auxiliary power outlet
XTurn the key to starter switch position 1.
!
Please observe the safety instructions
given in the respective operating
instructions.
Please note that
R if using the auxiliary power outlet the
maximum current drawn may not exceed
5 A or 60 W
R the electric air pump can be connected
to the auxiliary power outlet for the time
it takes to inflate the tire without any
problem
R the vehicle battery will discharge when
current is drawn.Useful features115>> Controls.* optionalBA 451 USA, CA Edition A 2011; 1; 4, en-UShereepeVersion: 3.0.3.62010-05-11T15:12:26+02:00 - Seite 115Z

BrakesGWarning!
Make sure not to endanger any other road
users when carrying out braking
maneuvers.
Refer to the description of the hydraulic
brake assistant ( Y page 48).
! Because the ESP ®
operates
automatically, the engine must be turned
off (ignition switched off) when the
parking brake is being tested on a brake
test dynamometer. Active braking action
through the ESP ®
may otherwise seriously
damage the brake system which is not
covered by the smart Limited Warranty.
Brake pad wear or a leak in the brake system
may be the reason for low brake fluid level
in the brake fluid reservoir.
The brake fluid level in the brake fluid
reservoir may be too low if the brake
warning lamp in the instrument cluster
comes on ( Y page 22) although the parking
brake is released.
Have the brake system inspected
immediately. Contact an authorized smart
center.
All checks and service work on the brake
system should be carried out by qualified
technicians only. Contact an authorized
smart center.
Only install brake pads and use brake fluid
recommended by smart.
Inclines
! When driving down long and steep
grades, relieve the load on the brakes by
shifting into a lower gear to use the
engine’s braking power. This helps
prevent overheating of the brakes and
reduces brake pad wear.
When using the engine’s braking power, a
drive wheel may not spin for an extended
period of time, e.g. on slippery road
surfaces. This may cause serious damage
to the drive- train which is not covered
by the smart Limited Warranty.
High and low stressesGWarning!
Resting your foot on the brake pedal will
cause excessive and premature wear of the
brake pads.
It can also result in the brakes
overheating, thereby significantly
reducing their effectiveness and your
ability to stop the vehicle in sufficient
time to avoid an accident.
After hard braking, it is advisable to drive
on for some time, rather than immediately
park, so that the air stream will cool down
the brakes faster.
If your brake system is normally only
subjected to moderate loads, you should
occasionally test the effectiveness of the
brakes by applying above-normal braking
pressure at higher speeds. This will also
enhance the grip of the brake pads.
GWarning!
Make sure not to endanger any other road
users when carrying out these braking
maneuvers.
Wet road surface
GWarning!
After driving in heavy rain for some time
without applying the brakes or through
water deep enough to wet brake components,
the first braking action may be somewhat
reduced and increased pedal pressure may
be necessary to obtain expected braking
effect. Maintain a safe distance from
vehicles in front.
To help prevent brake disc corrosion after
driving on wet road surfaces (particularly
salted roads), it is advisable to brake the
vehicle with considerable force prior to
Driving instructions147>> Operation.BA 451 USA, CA Edition A 2011; 1; 4, en-UShereepeVersion: 3.0.3.62010-05-11T15:12:26+02:00 - Seite 147Z

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.
R Never 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.
Driving instructions149>> Operation.BA 451 USA, CA Edition A 2011; 1; 4, en-UShereepeVersion: 3.0.3.62010-05-11T15:12:26+02:00 - Seite 149Z

No.Accessory/ComponentAmperageColor0071Engine15 ABlue0072ESP®
control unit25 ANeutral0073Switches strip, on-board diagnostics socket, turn
signal lamps, transmission control unit, exterior
lamp switch, anti-theft warning system, rain-light
sensor, auxiliary instruments, central locking
system, instrument cluster, exterior rear view
mirror heating10 ARed0074———0075Charge air cooler, air conditioning compressor15 ABlue0076Audio, subwoofer, soft top (cabriolet only)15 ABlue0077Fuel pump15 ABlue0078Rear window wiper (coupé only)15 ABlue0079ESP ®
control unit, EPS control unit, restraint
system, instrument cluster10 ARed007AEngine control unit, on-board diagnostics socket,
transmission control unit7.5 ABrown007BAir conditioning system, exterior rear view mirror
adjustment, washer pump, audio, seat heating, gear
selector lever control unit, wiper switch, backup
lamps, soft top switch (cabriolet only), cruise
control switch10 ARed007CAuxiliary power outlet, cigarette lighter15 ABlue007DLeft low‑beam headlamp7.5 ABrown007ERight low‑beam headlamp7.5 ABrown007FBrake lamps15 ABlue0080Right high‑beam headlamp7.5 ABrown0081Left high‑beam headlamp7.5 ABrown0082Engine7.5 ABrown0083Rear window defroster, radiator fan40 AOrange0084Soft top (cabriolet only)30 AGreen0085Transmission control unit40 AOrange006DHorn, central locking system20 AYellow208Fuses>> Practical hints.
BA 451 USA, CA Edition A 2011; 1; 4, en-UShereepeVersion: 3.0.3.62010-05-11T15:12:26+02:00 - Seite 208

No.Accessory/ComponentAmperageColor006C———006BIgnition50 ARed0069ESP®
control unit40 AOrange00BAEPS control unit30 AGreen009DExterior rear view mirror heating7.5 ABrown009EBrake lamps7.5 ABrown009F———00A0———00A1———00A2———00A3Interior lighting5 ALight brown00A4Amplifier20 AYellow00A5Seat heating control unit25 ANeutralFuses209>> Practical hints.BA 451 USA, CA Edition A 2011; 1; 4, en-UShereepeVersion: 3.0.3.62010-05-11T15:12:26+02:00 - Seite 209Z