warning light Seat Mii 2012 Workshop Manual
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Page 162 of 308
160Driver assistance systems
Malfunction in the laser sensor
If the laser sensor operation is impaired, for example due to heavy rain,
spray, snow or dirt, the City Safety Assist system function is temporarily
switched off. On the instrument panel display the control lamp flashes.
When the fault in the laser sensor has been rectified, the City Safety Assist
system function automatically becomes available. The control lamp
switches off.
The following conditions could prevent the City Safety Assist system from
functioning:
● Tight bends.
● Accelerator pressed all the way down to the floor.
● If the City Safety Assist system is switched off or there is a fault
⇒ page 156.
● If the laser sensor is dirty, covered or overheated ⇒ page 157.
● In the event of snow, heavy rain or dense fog.
● If there are vehicles in front.
● Vehicles changing lanes.
● Vehicles moving in the opposite direction in the same lane.
● Very dirty vehicles with a low degree of reflection.
● Presence of thick dust.
Hill hold
Introduction
Additional information and warnings:
● SEAT information system ⇒ page 22
● Braking, stopping and parking ⇒ page 134 ●
Vehicle battery ⇒ page 193
● Wheels and tyres ⇒ page 210
● Accessories, parts replacement, repairs and modifications ⇒ page 222
● Hill hold ⇒ page 273
WARNING
The smart technology included in the hill hold cannot change the laws of
physics. Do not let the extra convenience afforded by the hill hold tempt
you into taking any risks when driving.
● Any accidental movement of the vehicle could result in serious injury.
● The hill hold is not a replacement for driver awareness.
● Adjust your speed and driving style to visibility, weather, road and
traffic conditions.
● The hill hold cannot always keep the vehicle at a standstill on a slope
or brake sufficiently when travelling downhill (e.g. on slippery or frozen
surfaces).
Warning lamps
lights upPossible causeSolution
The Start-Stop system is ena-
bled.
The Start-Stop system is ena-
bled but the engine cannot be
automatically stopped.Contact a Specialised
workshop.
The Start-Stop system cannot
start the engine.Start the engine by hand
using the vehicle's key
⇒ page 120.
There is a fault in the alternator.⇒ page 193
Page 163 of 308
161
Driver assistance systems
flashesPossible causeSolution
The Start-Stop system is not
available.Contact a Specialised
workshop.
Some warning and control lamps will light up briefly when the ignition is
switched on to check certain functions. They will switch off after a few sec-
onds.
WARNING
If the warning lamps are ignored when they light up, the vehicle may
stall in traffic and cause accidents and severe injuries.
● Never ignore the warning lamps.
● Stop the vehicle at the next opportunity.
CAUTION
Failure to heed the control lamps when they light up may result in damage
to the vehicle. Start-Stop system
Fig. 101 At the top of
the centre console: Start-
Stop system button
With the Start-Stop system enabled, the engine is automatically stopped
when the vehicle is at a standstill. It will start again automatically as re-
quired.
This function remains enabled while the ignition is switched on. The instru-
ment panel display shows information on the current status ⇒ page 160.
Disconnect the Start-Stop system by hand whenever crossing water.
Vehicles with a manual gearbox
● When the vehicle is stopped, put it into neutral and release the clutch
pedal. The engine will stop.
● To restart, simply engage the clutch.
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Page 164 of 308
162Driver assistance systems
Vehicles with an automatic gearbox
● When the vehicle is at a standstill, depress the brake or keep it pressed
down. The engine switches off.
● The engine will start again as soon as you release the brake pedal.
● With the gear lever set to position P, the engine will not start until a
range of gears is selected or the accelerator pedal is depressed.
Important conditions for the engine to stop automatically
● The driver's seat belt must be fastened.
● The driver door must be closed.
● The bonnet must be closed.
● The engine must have reached a minimum temperature.
● The vehicle must have moved since the last time the engine was stop-
ped.
● The vehicle's battery must be sufficiently charged.
● The battery temperature must not be too low or too high.
● The vehicle must not be on a very steep slope.
Conditions for the engine to restart automatically
The engine can be automatically restarted in the following cases:
● If the vehicle starts to moves.
● If the battery voltage drops.
Conditions requiring engine start-up using the key
The engine must be started by hand using the vehicle's key in the following
cases:
● If the driver unbuckles his/her seat belt.
● If the driver door is opened.
● If the bonnet is opened. Switching the Start-Stop system on and off
●
Press the button situated in the centre console ⇒ Fig. 101.
● The button will light up when the Start-Stop system is switched off.
The engine will start immediately if the vehicle is in Stop mode when the
system is switched off by hand.
WARNING
The brake servo and the electromechanical steering do not work when
the engine is switched off.
● The vehicle must never be allowed to move with the engine switched
off.
● Disconnect the Start-Stop system before working in the engine com-
partment.
CAUTION
The vehicle's battery could be damaged if the vehicle is used for long peri-
ods at very high outside temperatures.
Note
In some cases, it may be necessary to start the engine by hand using the
key. Refer to the corresponding control lamp on the instrument panel.
Hill-start aid*
This function is only included in vehicles with ESC. This device helps when starting uphill.
Page 175 of 308
173
At the filling station
lights upGauge position
⇒ Fig. 105Possible cause ⇒ Solution
a)Red mark (ar-
row)The fuel tank is almost
empty.
The reserve tank is being
used ⇒ page 290.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. 105.
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 290.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 light up for a few seconds when the igni-
tion is switched on while a test of the function is being carried out. 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 lamps and to the corresponding descrip-
tions 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. 105
indicates the side of the vehicle on which the fuel tank plug is located.
Vehicle diagramPrior to a journey...While drivingCare, cleaning and mainte-
nanceIf and whenTechnical Data
Page 186 of 308
184In the engine compartment
Opening the bonnet
● Before opening the bonnet, make sure that the windscreen wiper arms
are in place against the windscreen ⇒
.
● Pull the release lever 1 in the direction of the arrow
⇒ Fig. 109 A. The
bonnet is released from the lock carrier by a spring mechanism ⇒ .
● Lift the bonnet up slightly while pressing the release lever 2 B in the
direction of the arrow to completely open the bonnet.
● Take out the bonnet support rod from its clip in the direction of the ar-
row 3
C and place it in the corresponding open position 4 D (arrow).
Closing the bonnet
● Slightly lift the bonnet ⇒
.
● Take out the bonnet support rod from the opening catch 4 D and insert
it into its clip 3 C in the opening catch.
● Let the bonnet fall from a height of 30 cm into its clip; Do not apply pres-
sure!
If the bonnet is not correctly closed, open it once again and close it correct-
ly.
The bonnet is correctly closed when it is flush with the corresponding parts
on the bodywork.
WARNING
If the bonnet is not correctly closed, it could suddenly open while driving
leaving the driver without visibility. This could result in serious accident.
● After closing the bonnet, always check that it is properly secured by
the locking mechanism in the lock carrier piece. The bonnet must be
flush with the surrounding body panels.
● While driving, if you notice that the bonnet is not correctly closed
then stop immediately and close it correctly.
● Only open and close the bonnet when there is nobody within its
range.
CAUTION
● To avoid damage to the bonnet and to the windscreen wiper arms, only
open the bonnet when the windscreen wipers are in place against the wind-
screen.
● Before driving, always lower the windscreen wiper arms.
Page 191 of 308
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 light up for a few seconds when the igni-
tion is switched on while a test of the function is being carried out. 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.You should obtain professional assis-
tance.
Vehicle diagramPrior to a journey...While drivingCare, cleaning and mainte-
nanceIf and whenTechnical Data
Page 192 of 308
190In the engine compartment
WARNING
If the warning lamps are ignored, the vehicle may stall in traffic, or may
cause accidents and severe injuries.
● Always observe any lit warning lamps.
● Never ignore the warning lamps.
● Stop the vehicle safely as soon as possible.
CAUTION
Failure to heed the warning lamps when they appear may result in faults in
the vehicle.
Note
On the display of the Portable Navigation System (supplied by SEAT)
⇒ page 222 an engine coolant temperature gauge can be seen.
Engine coolant specifications
The engine cooling system is supplied from the factory with a specially trea-
ted mixture of water and, at least, 40 % of the additive G 13 (TLVW 774 J).
The engine coolant additive is recognisable by its purple colour. This mix-
ture of water and additive gives the necessary frost protection down to
-25 °C (-13 °F) and protects the light alloy parts of the cooling system
against corrosion. It also prevents scaling and considerably raises the boil-
ing point of the coolant.
To protect the engine cooling system, the percentage of additive must al-
ways be at least 40 %, even in warm climates where anti-freeze protection is
not required.
If greater frost protection is required in very cold climates, the proportion of
additive can be increased. However, the percentage of additive should not exceed 60 %, as this would reduce the frost protection and, in turn, de-
crease the cooling capacity.
When the coolant is topped up, use a mixture of
distilled water and, at
least, 40 % of the G 13 or G 12 plus-plus (TL-VW 774 G) additive (both are
purple) to obtain an optimum anticorrosion protection ⇒
. The mixture of
G 13 with G 12 plus (TL-VW 774 F), G 12 (red) or G 11 (green-blue) engine
coolants will significantly reduce the anticorrosion protection and should,
therefore be avoided ⇒
.
WARNING
If there is not enough anti-freeze in the coolant system, the engine may
fail leading to serious damage.
● Please make sure that the percentage of additive is correct with re-
spect to the lowest expected ambient temperature in the zone in which
the vehicle is to be used.
● When the outside temperature is very low, the coolant could freeze
and the vehicle would be immobilised. In this case, the heating would
not work either and inadequately dressed passengers could die of cold.
CAUTION
The original additives should never be mixed with coolants which are not
approved by SEAT. Otherwise, you run the risk of causing severe damage to
the engine and the engine cooling system.
● If the fluid in the expansion tank is not purple but is, for example,
brown, this indicates that the G 13 additive has been mixed with an inade-
quate coolant. The coolant must be changed as soon as possible if this is
the case! This could result in serious faults and engine damage.
For the sake of the environment
Coolants and additives can contaminate the environment. If any fluids are
spilled, they should be collected and correctly disposed of, with respect to
the environment.
Page 193 of 308
191
In the engine compartment
Checking the engine coolant level and refilling
Fig. 113 In the engine
compartment: Marking
on coolant expansion
tank
Fig. 114 In the engine
compartment: Coolant
expansion tank cap
If the coolant level is low, the coolant warning indicator will light. Preparations
●
Park the vehicle on even, flat and firm ground.
● Allow the engine to cool ⇒
.
● Open the bonnet ⇒ page 180.
● The coolant expansion tank is easily recognisable because of the sym-
bol on the cap ⇒ Fig. 114.
Checking the engine coolant level
● When the engine is cold, check the coolant level using the side marking
on the expansion tank ⇒ Fig. 113.
● If the level is below the “MIN” mark, top up with coolant. When the en-
gine is hot it may be slightly above the marked area.
Topping up the engine coolant level
● Always protect your face, hands and arms from hot coolant and steam
using a large, thick cloth over the coolant expansion tank cap.
● Remove the cap very carefully ⇒
.
● Only refill using new engine coolant according to SEAT specifications
(⇒ page 190) ⇒
.
● The engine coolant level should be between the marks on the coolant
expansion tank ⇒ Fig. 113. Do not exceed the top level of the marked area
⇒
.
● Screw on the cap tightly.
● If, the event of an emergency, you have no coolant that is compliant to
the required specifications ( ⇒ page 190), never use another type of addi-
tive. Instead, first top up with distilled water ⇒
only. Then re-establish
the correct proportion of the mixture with the correct additive as soon as
possible ⇒ page 190.
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Page 195 of 308
193
In the engine compartment
Vehicle battery
Introduction
The battery is a component of the vehicle's electrical system.
Never work on the electrical system without fully understanding the opera-
tions required, the applicable safety standards and without the correct tools
⇒
! In such a case, have any work carried out by a Specialised workshop.
SEAT recommends visiting a Technical Service. Negligent work can cause
serious injury.
Location of the vehicle battery
The battery is located in the engine compartment.
Explanation of the warning indications on the vehicle's battery
SymbolMeaning
Wear eye protection!
Battery acid is very corrosive and caustic. Always wear
protective gloves and eye protection!
Fires, sparks, open flames and smoking are prohibited.
A highly explosive mixture of gases is released when
the battery is under charge.
Keep children away from acid and batteries!
Additional information and warnings:
● ⇒ Booklet Maintenance Programme
● Working in the engine compartment ⇒ page 180
● Accessories, parts replacement, repairs and modifications ⇒ page 222
WARNING
Working on the vehicle battery and the electrical system can cause corro-
sion, fire and electric shocks. Always read and take into account the fol-
lowing warnings and safety standards before carrying out any work:
● Before working on the battery, switch off the engine, the ignition and
all electrical devices then disconnect the negative connection on the bat-
tery.
● Keep children away from acid and the battery itself!
● Wear eye protection.
● Battery acid is very corrosive and caustic. It can burn skin and cause
blindness. When handling the battery, protect yourself from splashes of
acids, above all your hands, arms and face.
● Do not smoke and never work close to places exposed to flames or
sparks.
● Avoid sparks and electrostatic discharges when working with cables
and electrical devices.
● Never short the battery terminals.
● Never use a damaged battery. It can explode. Replace a damaged bat-
tery immediately.
● Replaced damaged or frozen batteries as soon as possible. A flat bat-
tery can also freeze at temperatures close to 0 °C (+32 °F).
CAUTION
● Never disconnect the battery if the ignition is switched on or if the en-
gine is running. This could damage the electrical system or electronic com-
ponents.
● Do not expose the battery to direct sunlight over a long period of time,
as the intense ultraviolet radiation can damage the battery housing.
● If the vehicle is left standing for long periods, protect the battery from
extreme cold temperature so that it does not “freeze up” and become dam-
aged.
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Page 196 of 308
194In the engine compartment
Warning lamp
lights
upPossible causeSolution
Faulty generator.
Contact a Specialised workshop.
Have the electrical system
checked.
Disconnect any unnecessary
electrical consumers. The gener-
ator does not charge the battery
while the vehicle is in motion.
Several warning and control lamps light up for a few seconds when the igni-
tion is switched on while a test of the function is being carried out. They will
switch off after a few seconds.
WARNING
If the warning lamps are ignored, the vehicle may stall in traffic, or may
cause accidents and severe injuries.
● Never ignore the warning lamps.
● Stop the vehicle safely as soon as possible.
CAUTION
Failure to heed the warning lamps when they appear may result in faults in
the vehicle. Checking the electrolyte level of the vehicle battery
Fig. 115 In the engine
compartment: Remove
the cover from the vehi-
cle's battery
The battery's electrolyte level should be checked regularly in high-mileage
vehicles, in hot countries and in older batteries. Other batteries do not re-
quire maintenance.
Vehicles fitted with the Start-Stop system are equipped with special batter-
ies. For technical reasons, the electrolyte level cannot be checked in these
batteries.
Preparations
● Prepare the vehicle for work in the engine compartment
⇒ page 180
● Open the bonnet
⇒ page 180.
● Press on the tabs
⇒ Fig. 115 (arrows) in the direction of the arrows and
lift the battery cover up.
Checking the battery electrolyte level
● Make sure there is sufficient lighting to clearly recognise the colours.
Never use open flames or sparklers as a light source.
● Depending on the level of acid, the Magic eye on the top of the battery
will change colour.