2012 Seat Mii warning

216Vehicle care and maintenance
The minimum tread depth required by law in the majority of cases is
1.6 mm, measured in the tread grooves next to the tread wear indicators.
Observe legal requirements in each country.
The performance of winter tyres is much reduced when the tread has worn
to 4 mm (5/32 inch).
The tread depth of new tyres may vary, according to the type and make of
tyre and the tread pattern.
Wear indicators on the tyre
The original tyres on your vehicle have 1.6 mm high ⇒ Fig. 122 tread wear
indicators running across the tread. A number of these indicators are equal-
ly spaced around the tyre tread. Certain marks on the tyre walls (for exam-
ple, the letters “TWI” or other symbols) indicate the position of the wear in-
dicators.
Tread wear indicators indicate if a tyre is worn. Tyres must always be re-
placed before the tyre tread has worn to the level of the indicator.
WARNING
Driving with worn tyres is dangerous, and may lead to loss of control of
the vehicle with serious consequences.
● Tyres must be replaced before the wear indicators are at the same lev-
el as the tread pattern.
● Worn tyres have significantly reduced grip, especially on wet surfa-
ces, increasing the risk of “aquaplaning”.
● Worn tyres make control of the vehicle more difficult in normal or dif-
ficult driving conditions, increasing the braking distance and the risk of
skidding.
 Damaged tyres
Damage to wheels and tyres is often not immediately visible. If you notice
unusual
vibration or the vehicle pulling to one side, this may indicate that
one of the tyres is damaged ⇒ 
.
● Slow down immediately if you think you have a damaged wheel.
● Check the wheels and tyres for damage.
● If tyres are worn, stop driving and seek qualified assistance.
● If there is no visible exterior damage, drive slowly and carefully to the
nearest Specialised workshop and have the vehicle checked.
Foreign bodies in the tyre
● Do not remove foreign bodies if they have penetrated through the tyre
wall!
● You should obtain professional assistance immediately.
Wear of tyres
The wear of tyres depends on a number of factors, for example:
● Driving style.
● Unbalanced wheels.
● Running gear settings.
Driving style : driving round bends fast or sudden acceleration or braking
speed up the wear of tyres. When the driving style is normal, if the tyres
wear too quickly, have the running gear settings checked at a Specialised
workshop.
Wheel run-out: The wheels on new vehicles are balanced. However, certain
circumstances may lead to imbalance (run-out), which is detected as vibra-
tions in the steering wheel. Run-out leads to wear of the steering and sus-
pension. In the event of run out, the wheels should be balanced again.
When a new wheel is fitted, it should be balanced again. 

217
Vehicle care and maintenance
Running gear settings : an incorrectly positioned running gear increases the
wear of tyres and affects your safety while driving. If tyres wear too quickly,
have the wheel alignment checked at a Specialised workshop.
WARNING
If you notice unusual vibration or the vehicle pulls to one side while driv-
ing, this may indicate that one of the tyres is damaged.
● Reduce speed immediately and stop, while observing the highway
code.
● Check the wheels and tyres for damage.
● Never carry on driving on worn tyres or wheels. Request qualified as-
sistance immediately.
● If there is no visible exterior damage, drive slowly and carefully to the
nearest Specialised workshop and have the vehicle checked.

Spare wheel or temporary spare wheel*
Fig. 123 In the luggage
compartment: hand con-
trolled wheel for securing
the spare wheel Removing the spare wheel
●
Open the rear lid and lift the luggage compartment shelf ⇒ page 100.
● If necessary, remove the luggage compartment variable floor
⇒ page 100.
● Lift up the carpet from the recess and remove it from the luggage com-
partment.
● If necessary, take out the vehicle tool kit with the container.
● Completely remove the hand controlled wheel from the centre of the
spare wheel ⇒ Fig. 123 by turning it in an anticlockwise direction, and take
out the spare wheel.
Storing the replaced wheel
● Pull back the carpet.
● With the wheel rim facing downwards, situate the replaced wheel in the
spare wheel well so that the wheel rim central hole coincides with the open-
ing.
● Turn the hand controlled wheel with the shank screwed clockwise until
the replaced wheel is secured.
● If necessary, store the vehicle tool in the container, inside the luggage
compartment.
● Replace the carpet on the luggage compartment floor.
● Lower the rear shelf.
● Close the rear lid.
If the spare wheel is different to the rest of the vehicle tyres
If the spare tyre is not the same as the tyres that are mounted on the vehicle
- for example with winter tyres or the temporary spare wheel - you should
only use the spare tyre for a short period of time and drive with extra care
⇒ .
Refit the normal road wheel as soon as possible.
Please observe driving advice: 
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218Vehicle care and maintenance
● Do not drive faster than 80 km/h (50 mph).
● Avoid heavy acceleration, hard braking and fast cornering.
● Snow chains on the temporary spare wheel are not permitted
⇒ page 220.
● After mounting the spare wheel or the temporary spare wheel, check the
tyre pressure as soon as possible ⇒ page 214.
It is advisable to check the spare wheel or temporary spare wheel tyre pres-
sure when checking the rest of the vehicle wheels at least once a month.
The spare wheel should have the highest pressure allowed for the vehicle
⇒ page 214. The sticker situated on the temporary spare wheel shows the
tyre pressure.
WARNING
Incorrect handling of the spare wheel or the temporary spare wheel can
cause loss of vehicle control, producing collisions or other serious acci-
dents and injury.
● Never use the spare wheel or the temporary spare wheel if it is dam-
aged or worn to the wear indicator.
● In some vehicles the spare wheel is smaller than the original tyres.
This can be seen on a sticker showing the text “80 km/h” and “50 mph”.
This text indicates the maximum velocity permitted for this type of tyre.
● Never drive faster than 80 km/h (50 mph). Avoid powerful accelera-
tion, hard braking and taking corners at high speed.
● Never drive more than 200 km (120 miles) with a temporary spare
wheel fitted to the drive axle.
● Replace the temporary spare wheel for a normal wheel as soon as
possible. The compact temporary spare wheel is only intended for tempo-
rary use over short distances.
● The temporary spare wheel must always be secured with the factory
supplied wheel bolts.
WARNING (Continued)
● You should never use more than one temporary spare wheel.
● After mounting the temporary spare wheel, check the tyre pressure as
soon as possible ⇒ page 214.
● Snow chains on the temporary spare wheel are not permitted.
Note
Wherever possible, secure the spare wheel, temporary spare wheel or the
replaced wheel safely in the luggage compartment. In vehicles with anti-
puncture kit, it is not possible to secure the defective wheel. 
Tyre code
Fig. 124 Universal code on tyres 

221
Vehicle care and maintenance
Remove wheel hub covers and trim rings before fitting snow chains ⇒ 
.
The wheel bolts should be covered with caps for safety reasons. These are
available from Technical Services.
Temporary spare wheel
For technical reasons, snow chains must not be used on the compact tem-
porary spare wheel ⇒ page 217.
If it is necessary to fit chains with the temporary spare wheel in use, install
the temporary spare wheel on the rear axle in the event of a fault in a front
wheel. Then, fit the rear wheel that is free, instead of the damaged front
wheel. In this situation, observe the rotating direction of the wheels. SEAT
recommends attaching the snow chains before fitting the wheel.
WARNING
The use of unsuitable or incorrectly fitted chains could lead to serious ac-
cidents and damage.
● Always the appropriate snow chains.
● Observe the fitting instructions provided by the snow chain manufac-
turer.
● Never exceed the maximum permitted speeds when driving with snow
chains.
CAUTION
● You must remove the snow chains to drive on roads which are free of
snow. Otherwise they will impair handling, damage the tyres and wear out
very quickly.
● Wheel trims may be damaged or scratched if the chains come into direct
contact with them. SEAT recommends the use of covered snow chains.
Note
Snow chains are available in different sizes according to the vehicle type. 
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222Vehicle care and maintenance
Accessories, replacements, repairs and
modifications
Introduction
Additional information and warnings:
● Seat belts ⇒ page 57
● Airbag system ⇒ page 67
● Roof carrier ⇒ page 104
● Ashtray and cigarette lighter ⇒ page 115
● Power socket ⇒ page 117
● Braking, stopping and parking ⇒ page 134
● Parking distance warning system ⇒ page 149
● Cruise control system (CCS) ⇒ page 152
● Working in the engine compartment ⇒ page 180
● Engine oil ⇒ page 185
● Engine coolant ⇒ page 189
● Vehicle battery ⇒ page 193
● Caring for and cleaning the vehicle exterior ⇒ page 197
● Care and cleaning of the vehicle interior ⇒ page 205
● Notes for the user ⇒ page 233
● ⇒ Booklet Radio system
● Instruction Manual for the Portable Navigation System (supplied by
SEAT) in the equipment.
WARNING
The use of unsuitable spare parts and accessories, or incorrectly per-
formed modifications or repairs may result in damage to the vehicle, acci-
dents and serious injury.
● SEAT strongly recommends you to only use SEAT approved accesso-
ries and SEAT ®
original spare parts. These parts and accessories have
been specially tested by SEAT for suitability, reliability and safety.
● Have any repairs or modifications carried out at a Specialised work-
shop. Specialised workshops have the necessary tools, diagnostics
equipment, repair information and qualified personnel.
● Only mount parts with the same specifications as the parts fitted at
factory.
● Never mount, fasten or fit objects such as drink holders or telephone
cradles over the covers of the airbag modules or within their deployment
zones.
● Only use wheels and tyre combinations which have been approved by
SEAT for your vehicle type.


223
Vehicle care and maintenance
Running-in
Please observe the instructions for running-in new components.
Running-in the engine
The engine needs to be run in over the first 1500 km (1000 miles). During
its first few hours of running, the internal friction in the engine is greater
than later on when all the moving parts have bedded down.
How the vehicle is driven for the first 1500 km (1000 miles) influences the
future engine performance. Throughout the life of the vehicle, it should be
driven at a moderate speed, especially when the engine is cold, as this will
reduce engine wear and increase its useful life. Never drive at extremely low
engine speeds. Change down to a lower gear when the engine no longer
runs “smoothly”. Up to 1000 kilometres the following instructions apply:
● Do not use full throttle.
● Do not force the engine above two thirds of its maximum speed.
Between 1000 and 1500 kilometres (600 to 1000 miles), gradually in-
crease power until reaching the maximum speed and high engine speeds.
Running in new tyres and brake pads
● Replacement of new tyres and wheel trims ⇒ page 210
● Notes on the brakes ⇒ page 134
For the sake of the environment
If the engine is run in gently, the life of the engine will be increased and the
engine oil consumption reduced. 
Accessories and spare parts
SEAT recommends you consult an Official Service before purchasing acces-
sories and spare parts or consumables. For example, when fitting accesso- ries at a later date, or when replacing a component. A SEAT Official Service
will advise you as to the legal requirements and manufacturer's recommen-
dations regarding accessories, spare parts and other components.
SEAT recommend you use only approved
SEAT accessories and genuine
SEAT spare parts ®
. These parts and accessories have been specially tested
by SEAT for suitability, reliability and safety. In addition the SEAT Technical
Service will guarantee that the assembly is carried out professionally.
Although we continually monitor the market, SEAT cannot guarantee that
products not approved by SEAT are reliable, safe and suitable for the vehi-
cle. Therefore, SEAT cannot accept liability, even in those cases authorised
by an officially recognised technical inspection office or other official body.
Any retro-fitted equipment which has a direct effect on vehicle control must
be approved by SEAT for use in your vehicle and bear the e mark (the Euro-
pean Union's authorisation symbol). This includes cruise control systems or
electronically controlled suspension.
If any additional electrical components are fitted which do not serve to con-
trol the vehicle itself, these must bear the  mark (European Union manu-
facturer conformity declaration). This includes refrigerator boxes, laptops or
ventilator fans.
WARNING
Unprofessional repairs or modifications to the vehicle may affect the per-
formance of the airbags, resulting in operating faults or fatal accident.
● Never mount, fasten or fit objects such as drink holders or telephone
cradles over or next to the covers of the airbag modules or within their
deployment zones.
● Objects placed over the airbag covers, or within their deployment
zones, could lead to serious injury or loss of life if the airbags are trig-
gered.

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224Vehicle care and maintenance
Fluids and consumables
All vehicle fluids and consumables , such as notched belts, tyres, coolant
fluids, engine oils, spark plugs and batteries are continually being devel-
oped. Therefore all fluids and consumables should be changed at a Special-
ised workshop. Technical Services are permanently informed of any modifi-
cations.
WARNING
The incorrect use or handling of fluids or consumables may result in acci-
dent, serious injury, burns or intoxication.
● Therefore, fluids must always be stored closed in their original con-
tainer.
● Never store fluids in empty food containers or bottles as other people
may accidentally drink the fluid.
● Keep all fluids and consumables out of reach of children.
● Read and observe the information and warnings given on the fluid
containers.
● Only work in the open air or in well-ventilated zones, when using
products which give off harmful vapours.
● Never use fuel, turpentine, engine oil, acetone or any other volatile
liquid in the maintenance of the vehicle. These are toxic and highly flam-
mable. They could lead to fire or explosions!
CAUTION
● Only use appropriate fluids. Never mix the fluids. Using the wrong fluids
could cause serious malfunctions and engine damage!
● Accessories and other components mounted in front of the air inlet re-
duce the cooling effect of the coolant. If the engine is running under great
strain in high outside temperatures, it could overheat.
For the sake of the environment
Leaking fluids could pollute the environment. Collect any spilt fluids in suit-
able containers and dispose of in accordance with legislation and with re-
spect for the environment. 
Repairs and technical changes
When performing repairs and technical modifications, SEAT's directives
must be observed! ⇒ 
Unauthorised modifications to the electronic components or software in the
vehicle may cause malfunctions. Due to the way the electronic components
are linked together in networks, other indirect systems may be affected by
the faults. This may significantly affect the vehicle's performance, increase
component wear and could mean that the vehicle registration documents
are no longer valid.
Your SEAT Official Service cannot be held liable for any damage caused by
technical modifications or repairs performed incorrectly.
The SEAT Official Service does not accept liability for damage resulting from
technical modifications or repairs performed incorrectly; neither is the SEAT
warranty valid in these cases.
SEAT recommends you have any technical modifications or repairs per-
formed at a SEAT Official Service and that you use genuine SEAT spare
parts ®
.
Vehicles with special accessories and equipment
The manufacturers of additional equipment guarantee that the equipment
complies with applicable laws and regulations with respect to the environ-
ment, in particular Directives 2000/53/CE and 2003/11/CE. The first direc-
tive governs the disposal of end-of-life vehicles while the second refers to
the restrictions on the marketing and use of certain dangerous substances
and preparations. 

225
Vehicle care and maintenance
The vehicle owner should keep the documentation for the additional equip-
ment safely and hand it over to the scrap yard at the end of the vehicle's
service life. This ensures that any additional equipment mounted in end-of-
life vehicles is correctly disposed of with respect for the environment.
WARNING
Repairs or modifications which are not performed correctly may result in
damage or errors in the vehicle operation, affecting the efficiency of the
driver assist systems. This could result in serious accident.
● All repairs and modifications to the vehicle should only be performed
by a Specialised workshop.

Repair and faults in the airbag system
When performing repairs and technical modifications, SEAT's directives
must be observed! ⇒ 
Modifications and repairs to the front bumper, doors, front seats, and re-
pairs to the roof or chassis should only be carried out in a Specialised work-
shop. These components may contain parts or sensors belonging to the air-
bag system.
If work is carried out on the airbag system or parts have to be removed and
fitted on the system when performing other repair work, parts of the airbag
system may be damaged. The consequence may be that, in the event of an
accident, the airbag inflates incorrectly or does not inflate at all.
So that the effectiveness of the airbag is not reduced and that removed
parts do not cause any injuries or environmental pollution, regulations must
be observed. These requirements are known to qualified dealerships.
Modifications to the vehicle suspension may affect the operation of the air-
bag system in the event of collision. For example, if wheel and tyre combi-
nations not approved by SEAT are used, or if the vehicle height is lowered, the suspension is stiffened or the suspension springs, telescopic arms,
dampers, etc., are modified, the results received by the airbag sensors and
sent to the control unit may not be accurate. For example, some modifica-
tions to the suspension could increase the force measured by the sensors
and result in the triggering of the airbag systems in collisions. Under normal
conditions, the measured values would be lower and the airbag would not
have been triggered. Other modifications may reduce the forces measured
by the sensors and therefore the airbags are not triggered in situations
when they should have triggered.
WARNING
Repairs or modifications which are not performed correctly may result in
damage or errors in the vehicle operation, affecting the efficiency of the
airbag systems. This could result in serious or fatal accident.
● All repairs and modifications to the vehicle should only be performed
by a Specialised workshop.
● Airbag modules must never be repaired: if damaged, they must be re-
placed.
● Never fit recycled or reused airbag components in your vehicle.
WARNING
Modifications to the vehicle suspension, including the use of unauthor-
ised wheel and tyre combinations, may affect the performance of the air-
bags and increase the risk of serious or fatal injury in the event of acci-
dent.
● Never fit suspension components which are not identical to the origi-
nal parts mounted in the vehicle.
● Never use wheel and tyre combinations not approved by SEAT.

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