2013 Seat Mii ignition

173
At the filling station
lights upGauge position
⇒ Fig. 108Possible cause ⇒ Solution
 a)Red mark (ar-
row)The fuel tank is almost
empty.
The reserve tank is being
used ⇒ page 288.Refuel as soon as
possible ⇒ .
–The vehicle is running in
natural gas operating
mode.–
a)This only applies to vehicles with the fuel gauge on the instrument panel ⇒ Fig. 108.
flashes
for about 10 sec- ondsState of the barsPossible cause ⇒ Solution
 and
the seg-
ments re-
maining a)Reserve zone
(four small seg- ments)The fuel tank is almost
empty.
The reserve tank is being
used ⇒ page 288.Refuel as soon as
possible ⇒ .
–The vehicle is running in
natural gas operating
mode.–
a)This only applies to vehicles with the fuel gauge on the instrument panel display.
Several warning and control lamps should light up for a few seconds when
the ignition is switched on, signalling that the function is being verified.
They will switch off after a few seconds.
In natural gas engines
The warning lamp  lights up when both fuel types (petrol and natural gas)
have reached reserve level.
The warning lamp  lights up when the vehicle is running in natural gas op-
erating mode. The warning lamp 
switches off when the natural gas is exhausted. The
engine changes to operate with petrol.
Problem: If the vehicle is left parked for a long time immediately after refuel-
ling, the gas level indicator does not accurately indicate the same level
shown after refuelling when the vehicle is started up again. This is not due
to a leak in the system, but to a drop in pressure in the gas tank for techni-
cal reasons after a cooling phase immediately after refuelling.
WARNING
Driving with insufficient fuel reserve could result in the vehicle breaking
down in traffic and a serious accident.
● If the fuel level is too low then the fuel supply to the engine can be-
come irregular especially on slopes.
● If the engine “is choked” or stalls due to lack of or irregularity of the
fuel supply, the power steering as well as all of the driver assistance sys-
tems including braking assistance will stop working.
● Always refuel when there is only one quarter of the fuel tank left to
avoid running out of fuel.
CAUTION
● Always pay attention to any lit control lamps and to the corresponding
descriptions and instructions to avoid damage to the vehicle.
● Never run the fuel tank completely dry. An irregular fuel supply may lead
to ignition faults and unburnt fuel could enter the exhaust system. This
could damage the catalytic converter.
Note
The arrow next to the fuel pump symbol on the instrument panel ⇒ Fig. 108
indicates the side of the vehicle on which the tank flap is located. 
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174At the filling station
Refuelling with petrol
Fig. 110 Open tank flap
with tank cap attached 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 cap
● The tank flap 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. 110.
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 cap
● 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 you hear it click into place. The tank flap must
be flush with the body contour.
WARNING
Do not continue refilling 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. 

175
At the filling station
Refuelling with natural gas
Fig. 111 Tank flap open:
gas filler mouth 1, filler
mouth retainer 2
Before refuelling, the engine and the ignition, mobile telephone and heat-
ing must be switched off separately
⇒ .
It is also essential to carefully read the instructions for the natural gas
pump.
The vehicle is not prepared for refuelling with liquefied natural gas (LNG)
⇒ 
. Before refuelling with natural gas, make sure to add the appropriate
type of fuel.
Opening the fuel tank cap
The natural gas filler mouth is behind the fuel tank cap, next to the petrol
filler mouth.
● Unlock the vehicle with the key or with the central locking button  situ-
ated on the driver door ⇒ page 34.
● Press on the rear area of the flap and open it. Refuelling
Problem: If the ambient temperature is very high, the natural gas pump pro-
tection against overheating disconnects this automatically.
●
Remove the plug from the gas filler mouth ⇒ Fig. 111 1
.
● Connect the pump filling nozzle to the gas filler mouth.
● The fuel tank will be full when the pump compressor automatically cuts
the supply.
● If you wish to finish refuelling in advance, press the button on the pump
to stop the flow.
Closing the fuel tank cap
● Check that the gas filler mouth retainer 2
is not trapped with the filler
nozzle. If necessary, place it in the filler mouth again.
● Insert the plug in the filler mouth.
● Close the tank flap. Make sure you hear it click into place.
WARNING
Natural gas is a highly explosive, easily flammable substance. Incorrect
handling of the natural gas can cause accidents serious burns and other
injuries.
● Before refuelling with natural gas, the filling mouth must be correctly
engaged. If you can smell gas, stop refuelling immediately.
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. 
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178At the filling station
Not all petrol additives have been shown to be effective. The use of unsuita-
ble petrol additives may cause significant damage to the engine and the
catalytic converter. Metal additives should never be used. Metal additives
may also be contained in petrol additives for improving anti-detonation rat-
ings or octane ratings ⇒ 
.
SEAT recommends “genuine Volkswagen Group fuel additives for petrol en-
gines”. These additives can be bought at SEAT Authorised Services, where
information on how to use them can also be obtained.
CAUTION
● Do not refuel if the filler indicates that the fuel contains metal. LRP (lead
replacement petrol) fuels contain high concentrations of metal additives.
Using them may damage the engine!
● Only use fuel with an octane rating that is in line with the norm EN 228,
otherwise significant damage could be caused to the engine and fuel sys-
tem. Furthermore, it could lead to a loss of performance with the conse-
quent engine fault.
● The use of unsuitable petrol additives could seriously damage the en-
gine and the catalytic converter.
● If, in exceptional circumstances, petrol with a lower octane rating to that
recommended is used, only use moderate engine speeds and a light throt-
tle. Avoid using full throttle and overloading the engine. Otherwise engine
damage may occur. Fill up with fuel of a suitable octane rating as soon as
possible.
● Just filling one full tank of leaded fuel or with other metal additives
would seriously impair the efficiency of the catalytic converter and could
damage it. 
Natural gas
Natural gas, in addition to others, can be in liquid form. Liquefied natural gas (LNG) is the result of heavy cooling of natural gas.
Therefore its volume is considerably reduced compared with compressed
natural gas (CNG). In vehicles with a natural gas engine, liquefied natural
gas cannot be directly refilled, given that the gas would expand excessively
in the vehicle gas tank.
Therefore, vehicles with a natural gas engine must only be refuelled using
compressed natural gas
⇒ 
.
Natural gas quality and consumption
Natural gas is divided into the groups H and L depending on its quality.
Gas type H has a superior heating power and inferior nitrogen and carbon
dioxide content than type L. The higher the heating power of the natural
gas, the lower the consumption will be.
However, the heating power and the proportion of nitrogen and carbon di-
oxide can fluctuate within the quality groups. Therefore, vehicle consump-
tion can also vary when using one type of gas only.
The engine management automatically adapts to the natural gas used ac-
cording to its quality. Therefore, different quality gases can be mixed in the
tank, without the need for comprehensive draining before applying a differ-
ent quality gas.
Natural gas and safety
If you can smell gas or suspect that there is a leak ⇒ 
:
● Stop the vehicle immediately.
● Switch the ignition off.
● Open the doors to appropriately ventilate the vehicle.
● Immediately extinguish cigarettes.
● Move away from the vehicle or switch off objects that may cause sparks
or a fire.
● If you continue to smell gas, do not continue driving!
● Seek specialist assistance. Have the fault repaired. 

180In the engine compartment
Care, cleaning and maintenance
In the engine compartment
Working in the engine compartmentIntroduction
Before working in the engine compartment, make sure that the vehicle is
parked on horizontal and firm ground.
The engine compartment of the vehicle is a hazardous area. Never work on
the engine or in the engine compartment if you are not familiar with the op-
erations to be carried out, the applicable safety standards and especially if
you do not have the instruments, liquids and tools necessary ⇒ 
! In such
a case, have any work carried out by a Specialised workshop. Negligent
work can cause serious injury.
Additional information and warnings:
● Exterior detail ⇒ page 6
● Windscreen wash system ⇒ page 89
● Start and stop the engine ⇒ page 119
● Brake fluid ⇒ page 134
● Checks when filling up ⇒ page 171
● Engine oil ⇒ page 185
● Engine coolant ⇒ page 189
● Vehicle battery ⇒ page 193
● Accessories, parts replacement, repairs and modifications ⇒ page 222
WARNING
If the vehicle moves unexpectedly, this could cause serious injury.
● Never work underneath the vehicle if it is not secured against moving.
If you must work underneath the vehicle with the wheels in contact with
the ground then it should be parked on flat ground, the wheels should be
prevented from moving and the key must be removed from the ignition.
● If you have to work underneath the vehicle, you must use suitable
stands additionally to support the vehicle, there is a risk of accident!.
The jack is not intended for this kind of work and its failure could lead to
severe injuries.
● Disconnect the Start-Stop system.
WARNING
The engine compartment is a dangerous area capable of causing serious
injury.
● For all type of work, always take the utmost precautions, work care-
fully and note the general safety standards in force. Never take personal
risks.
● Never work on the engine or in the engine compartment if you are not
familiar with the necessary operations. If you are not sure about proce-
dures then visit a specialised workshop to carry out the necessary work.
Incorrect work can cause serious injuries. 

181
In the engine compartment
WARNING (Continued)
● Never open the bonnet if you see steam or coolant escaping from the
engine compartment. Hot vapours and coolant can cause serious burns.
Always wait until you cannot see or hear the sound of steam or coolant
coming from the engine compartment.
● Always allow the engine to cool down before opening the bonnet.
● Contact with hot elements of the engine and the exhaust system can
cause burns.
● Once the engine has cooled, follow the instructions below before
opening the bonnet:
–Engage the handbrake and place the gear selector lever in P or the
gear stick in neutral.
– Remove the key from the ignition.
– Keep children away from the engine compartment and never leave
them unsupervised.
● When the engine is warm or hot, the cooling system is pressurised.
Do not unscrew the cap on the expansion tank when the engine is hot.
Otherwise, coolant may spray out under pressure causing burns and seri-
ous injury.
–After cooling, carefully and slowly unscrew the cap anticlockwise,
gently pressing down on it.
– Always protect your face, hands and arms from hot coolant and
steam using a large, thick cloth.
● When refilling liquids, avoid spilling them on parts of the engine and
the exhaust system. Spilled liquids could cause a fire.WARNING
The high voltages of the electrical system can give electric shocks as well
as causing burns and serious injury and possibly even death!
● Never cause short circuits in the electrical system. The battery could
explode.
● To minimise the risk of electric shock and serious consequences
while the engine is running or starting the engine, note the following:
–Never touch the electrical wiring of the ignition system.
WARNING
In the engine compartment, there are rotating parts that could cause se-
rious injury.
● Never place your hands directly on or near the radiator fan. Touching
the rotor blades could seriously harm you. The ventilator works accord-
ing to the engine temperature and could start suddenly even when the ig-
nition is turned off and the key is removed.
● If any work has to be performed when the engine is started or with
the engine running, there is an additional, potentially fatal, safety risk
from the rotating parts, such as the drive belts, alternator, radiator fan
etc as well as from the high-voltage ignition system. Always work with
the utmost caution.
–Always make sure that no parts of your body, jewellery, ties, loose
clothing and long hair can be trapped by the rotating parts of the en-
gine. Before any work, remove ties and jewellery ( necklaces, etc), tie
longhair back and tie all items of loose clothing to your body to make
sure that they cannot be trapped by engine components.
– Take extreme caution when operating the accelerator and remain
attentive. The vehicle could move, even if the handbrake is applied.
● Always make sure you have not left any objects, such as cloths or
tools, in the engine compartment. If any object is left in the engine com-
partment, this could cause malfunctions, engine faults and even a fire. 
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182In the engine compartment
WARNING
Refill liquids and certain materials can catch fire easily in the engine
compartment, causing a fire and serious injury!
● Never smoke.
● Never work close to places exposed to flames or sparks.
● Never pour service fluids over the engine. These fluid may ignite hot
engine parts and cause injuries.
● If it is necessary to work on the fuel system or the electrical system,
please follow the instructions below:
–Always disconnect the vehicle battery.
– Never work close to heaters, heat sources or places exposed to
flames or sparks.
● Always keep a recently serviced and perfectly working fire extin-
guisher close by.
CAUTION
When refilling or changing service liquids, ensure that you put the liquids
into the right tank. Making a mistake when refilling could cause serious
malfunctions and damage the engine!
For the sake of the environment
Service fluids leaks are harmful to the environment. For this reason you
should make regular checks on the ground underneath your vehicle. Take
the vehicle to a specialised workshop to be checked if you see stains, oil or
other fluids on the ground. Collect any spilt service fluids and allow a pro-
fessional to dispose of them. Preparing the vehicle for work in the engine compartment
Checklist
Carry out the operations below in the order indicated before starting work in
the engine compartment
⇒ 
:
 Park the vehicle on an even and solid surface.
 Press and hold the brake pedal until the vehicle comes to a stand-
still.
 Apply the handbrake firmly
⇒ page 134.
 Move the gear lever into the neutral position
⇒ page 124.
 Stop the engine and remove the key from the ignition
⇒ page 119.
 Wait for the engine to cool down.
 Always keep children and other people far from the engine compart-
ment.
 Ensure that the vehicle can not move off unexpectedly.
WARNING
Always complete the operations given in the checklist and observe the
general rules of safety.
● Ignoring this checklist, drawn up for your own safety, could result in
serious injury.


189
In the engine compartment
Engine coolant Introduction
Never work on the engine cooling system or if you are not familiar with the
operations to be carried out, the applicable safety standards and especially
if you do not have the instruments, liquids and tools necessary ⇒ 
! In
such a case, have any work carried out by a Specialised workshop. SEAT rec-
ommends visiting a Technical Service.
Negligent work can cause serious injury.
Additional information and warnings:
● Working in the engine compartment ⇒ page 180
● Accessories, parts replacement, repairs and modifications ⇒ page 222
WARNING
Engine coolant is toxic!
● Only keep engine coolant in its original container, tightly shut and in
a safe place.
● Never store engine coolant in empty food containers or bottles as
other people may accidentally drink it.
● Always keep engine coolant out of reach of children.
● Ensure that the proportion of engine coolant additive corresponds to
the lowest outside temperature to which the vehicle will be exposed.
● If the outside temperature is extremely low, the engine coolant could
freeze causing the vehicle to stop. As this would also cause the heating
to stop working, vehicle occupants without sufficient clothing could
freeze.
For the sake of the environment
Coolants and additives can contaminate the environment. Collect any spilt
fluids in suitable containers and dispose of in accordance with legislation
and with the utmost respect for the environment. 
Coolant warning lamp
Several warning and control lamps should light up for a few seconds when
the ignition is switched on, signalling that the function is being verified.
They will switch off after a few seconds.
lights upPossible causeSolution

Excessive engine coolant
temperature. Stop the vehicle!
Stop the vehicle safely as soon as pos-
sible. Switch off the engine and let it
cool.
Insufficient engine cool-
ant level. ¡Stop the vehicle!
Check the engine coolant when the en-
gine has cooled and, if it is low, refill
with engine coolant ⇒ page 191.
Engine coolant system
faulty. Do not drive any further.
Obtain professional assistance.
flash- esPossible causeSolution
Engine coolant system
faulty.Seek specialist assistance. 
Vehicle diagramPrior to a journey...While drivingCare, cleaning and mainte-
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