2012 Seat Mii service

155
Driver assistance systems
Safety Assist* (City Safety Assist function) Introduction
The City Safety Assist function covers driving situations at a distance of
about 10 metres in front of the vehicle, in a speed range of approximately
5-30 km/h (3-19 mph).
When the system detects a possible collision with a vehicle in front, the ve-
hicle prepares for a possible emergency braking ⇒ 
.
If the driver does not react to an imminent collision, the system can auto-
matically brake the vehicle in order to reduce speed faced with a possible
collision. The system can help to reduce the consequences of an accident.
If the City Safety Assist function determines that the driver braked insuffi-
ciently faced with an imminent collision, the system can increase the brake
force in order to reduce speed. The system can help to reduce the conse-
quences of an accident.
Additional information and warnings:
● Exterior detail ⇒ page 6
● Centre console, lower section ⇒ page 12
● Instrument panel ⇒ page 15
● Accessories, parts replacement, repairs and modifications ⇒ page 222
WARNING
The intelligent technology in the City Safety Assist system cannot change
the limits imposed by the laws of physics and by the system itself. The
increased comfort offered by the City Safety Assist system should never
prompt you to take risks. The driver always assumes the responsibility of
braking in time.
● The City Safety Assist function can not individually prevent accidents,
nor serious injury.
● The City Safety Assist system may carry out unwanted brake interven-
tions in complex driving situations i.e. when a vehicle crosses at a short
distance.
WARNING
Including the role of the City Safety Assist system in driving conduct may
cause accidents and serious injury. The system is not a replacement for
driver awareness.
● Always adapt your speed and the distance to the vehicles ahead in
line with visibility, weather conditions, the condition of the road and the
traffic situation.
● The City Safety Assist function does not react to people, animals or
vehicles that cross or move in the opposite direction in the same lane.
● If after switching on the City Safety Assist function the vehicle begins
to move, slow the vehicle with the foot brake.
CAUTION
If you suspect that the laser sensor of the City Safety Assist function is dam-
aged, switch off the City Safety Assist function. This will avoid additional
damage.
● Any reparation of the laser sensor requires specialist knowledge. SEAT
recommends visiting a Technical Service. 
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163
Driver assistance systems
These are the basic operation conditions: doors closed, brake pedal press-
ed down and vehicle in neutral. The system gets activated on engaging
gear.
After removing your foot from the brake pedal, the braking force is main-
tained for a few seconds to prevent the vehicle from moving backward when
putting into gear. This short space of time is enough to start the vehicle
with ease.
This system also works when reversing uphill.
WARNING
● If you do not start the vehicle immediately after taking your foot off
the brake pedal, the vehicle may start to roll back under certain condi-
tions. Depress the brake pedal or use the hand brake immediately.
● If the engine stalls, depress the brake pedal or use the hand brake
immediately.
● When following a line of traffic uphill, if you want to prevent the vehi-
cle from rolling back accidentally when starting off, hold the brake pedal
down for a few seconds before starting off.
Note
The Official Service or a specialist workshop can tell you if your vehicle is
equipped with this system. 
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164Air control
Air control
Heating, Ventilation and Air conditioning
system Introduction
Dust and pollen filter
The dust and pollen filter with its activated charcoal cartridge serves as a
barrier against impurities in the interior ambient air.
For the air conditioner to work with maximum efficiency, the dust and pollen
filter must be replaced at the intervals specified in the Maintenance Pro-
gramme.
If the filter loses efficiency prematurely due to use in areas with very high
levels of air pollution, the filter must be changed more frequently than sta-
ted in the Service Schedule.
Additional information and warnings:
● SEAT information system ⇒  page 22
● Windscreen wash system ⇒  page 91
● Caring for and cleaning the vehicle exterior ⇒ page 197
WARNING
Reduced visibility through the windows increases the risk of serious acci-
dents.
● Ensure that all windows are free of ice and snow and that they are not
fogged up preventing a clear view of everything outside.
WARNING (Continued)
● The maximum heat output required to defrost windows as quickly as
possible is only available when the engine has reached its normal run-
ning temperature. Only drive when you have good visibility.
● Always ensure that you use the heating system, ventilation, air condi-
tioner and the heated rear window to maintain good visibility.
● Never leave the air recirculation on for a long period of time. If the
cooling system mode is switched off and air recirculation mode switched
on, the windows can mist over very quickly, considerably limiting visibili-
ty.
● Switch air recirculation mode off when it is not required.
WARNING
Stuffy or used air will increase fatigue and reduce driver concentration
possibly resulting in a serious accident.
● Never leave the air fan turned off or use the air recirculation for long
periods of time; the air inside the interior will not be refreshed.
CAUTION
● Switch the air conditioner off if you think it may be broken. This will
avoid additional damage. Have the air conditioner checked by a Specialised
workshop.
● Repairs to the climate air conditioner specialist knowledge and special
tools. SEAT recommends visiting a Technical Service. 

171
At the filling station
At the filling station Refuelling
Introduction
The fuel tank plug is on the rear right of the vehicle.
Additional information and warnings:
● Exterior detail ⇒ page 6
● Fuel ⇒ page 177
● Working in the engine compartment ⇒ page 180
WARNING
Refuelling or handling fuel carelessly can cause an explosion or fire re-
sulting in serious burns and injuries.
● Always make sure that you correctly close the fuel tank flap to avoid
evaporation and fuel spillage.
● Fuels are highly explosive and inflammable substances that can
cause serious burns and injuries.
● Fuel could leak out or be spilt if the engine is not switched off or if the
filler fuel nozzle is not fully inserted into the tank filler mouth when refu-
elling. This could lead to a fire, explosion and severe injuries.
● When refuelling, turn off the engine and turn off the ignition for safe-
ty reasons.
● Always turn off mobile telephones, radio system apparatus and other
radio wave emitting equipment before refuelling. Electromagnetic waves
could cause sparks and lead to a fire.
WARNING (Continued)
● Never enter the vehicle while refuelling. If it is absolutely necessary
to enter the vehicle, close the door and touch a metal surface before
touching the filler nozzle again. This will prevent the generation of static
electricity. Sparks could cause a fire when refuelling.
● Never handle fuel close to open flames, sparks or objects with slow
combustion (e.g. cigarettes).
● Avoid static electricity and electro-magnetic radiation when refuel-
ling.
● Observe the safety regulations of the service station.
● Never spill fuel on the vehicle or in the luggage compartment.
WARNING
For safety reasons, SEAT does not recommend carrying a spare fuel canis-
ter in the vehicle. Fuel could be spilled and catch fire, above all in case of
an accident and this applies to a full container as well as empty contain-
ers. This could lead to explosions, fires and injuries.
● Observe the following if you exceptionally have to carry fuel in a can-
ister:
–Never place a fuel container, to fill it, inside the vehicle or on the
vehicle, for example, in the luggage compartment. Filling in these cir-
cumstances could create an electrostatic charge and spark that could
ignite fuel fumes.
– Always place the canister on the ground to fill it.
– Insert the fuel nozzle into the mouth of the canister as far as possi-
ble. 
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172At the filling station
WARNING (Continued)
– If you are using a metal fuel canister, the nozzle must always touch
the canister while it is being filled to avoid static electricity.
– Follow the legal requirements for the use, storage and transport of
spare fuel canisters.
– Insure that the fuel container complies with manufacturing stand-
ards, for example, ANSI or ASTM F852-86.
CAUTION
● Always remove any fuel spilled anywhere on the vehicle to avoid dam-
age to the wheel housing, the tyre and vehicle paintwork.
● Refuelling a petrol engine with diesel can cause serious engine and fuel
system damage; the resulting malfunctions are not covered by the SEAT
warranty. If you refuel with the wrong type of fuel, never start the engine.
This applies to even the smallest amount of the wrong fuel. You should ob-
tain professional assistance. With the engine running, the composition of
the wrong fuel could significantly damage the fuel system and the engine
itself.
For the sake of the environment
Fuels can contaminate the environment. Collect any spilt service fluids and
allow a professional to dispose of them. Control lamps and fuel gauge
Fig. 105 On the instru-
ment panel: fuel gauge
for petrol
Fig. 106 On the instru-
ment panel: fuel gauge
for petrol
The fuel gauge can vary depending on the vehicle equipment ⇒ Fig. 105
or ⇒ Fig. 106. 

174At the filling station
Refuelling with petrol
Fig. 107 Open fuel tank
flap with tank plug at-
tached to the holder
Before refuelling, always turn off the engine, the ignition, mobile tele-
phones, auxiliary heating and keep them off during refuelling.
Opening the fuel tank flap
● The fuel tank plug is at the rear of the vehicle on the right.
● Pull the rear zone of the fuel tank flap to open.
● Unfold the key shaft if necessary
⇒ page 28.
● Insert the vehicle key into the lock cylinder of the fuel tank plug and turn
the key in an anticlockwise direction.
● Take out the fuel tank plug by turning it in an anticlockwise direction
and rest it on the upper part of the fuel tank flap ⇒ Fig. 107.
Refuelling
The correct petrol type for the vehicle is located on a sticker inside the fuel
tank flap ⇒ page 177. ●
If the automatic filler nozzle is operated correctly, it will switch itself off
as soon as the fuel tank is full ⇒ 
.
● Do not continue to refuel if it is turned off! Otherwise, this will fill the ex-
pansion chamber and fuel may leak out if the ambient conditions are warm.
Closing the fuel tank flap
● Screw on the fuel tank filler plug in a clockwise direction until it is fully
inserted with a click.
● Insert the vehicle key into the lock cylinder of the fuel tank plug, turn the
key in a clockwise direction and remove the key.
● Press the tank flap until it clicks into place. The fuel tank flap must be
flush with the body contour.
WARNING
Do not continue refuelling once the fuel nozzle has switched itself off.
The fuel tank may be filled too much. As a result, fuel may spurt out and
spill. This could lead to a fire, explosion and severe injuries.
CAUTION
● Always remove any fuel spilled anywhere on the vehicle to avoid dam-
age to the wheel housing, the tyre and vehicle paintwork.
For the sake of the environment
Fuels can contaminate the environment. Collect any spilt service fluids and
allow a professional to dispose of them. 

176At the filling station
Note
● The filling nozzles of natural gas pumps can differ in the way they are
operated. If you are unacquainted with the pump, it is advisable that a
member of staff of the service station performs the refuelling operation.
● Noises heard when refuelling are normal and do not indicate the pres-
ence of a fault in the system.
● The vehicle natural gas system is prepared both for refuelling with a
small compressor (slow refuel) and a large compressor (fast refuel) in natu-
ral gas service stations. 
Refuelling precautions
Checklist
Never work on the engine or in the engine compartment if you are not famil-
iar with the operations to be carried out, the applicable safety standards
and if you do not have the instruments, liquids and tools necessary
⇒ page 180, Working in the engine compartment! In such a case, have any
work carried out by a Specialised workshop. Check the following regularly,
preferably when you refuel:
¥ Windscreen washer fluid level
⇒ page 91
¥ Engine oil level
⇒ page 185
¥ Engine coolant level
⇒ page 189
¥ Brake fluid level
⇒ page 134
¥ Tyre pressure ⇒ page 210
¥ Vehicle lighting required to guarantee road safety:
– Turn signals
– Side lights, dipped beam and main beam headlights
– Rear lights
– Brake lights
– Rear fog light ⇒ page 84
Information on bulb replacement ⇒ page 264. 

179
At the filling station
WARNING
Failure to act when you can smell gas in the vehicle or when refuelling
can cause serious injuries.
● Carry out the necessary operations.
● Leave the danger zone.
● If necessary, warn the emergency services.
WARNING
The vehicle is not prepared to use liquefied natural gas (LNG) and this
fuel must not be added under any circumstances. Liquefied natural gas
can cause the natural gas tank to explode resulting in serious injury.
Note
The natural gas system must be subject to regular inspections at a special-
ised workshop in accordance with the Service Plan. 
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