2012 Seat Mii change wheel

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 

210Vehicle care and maintenance
Wheels and tyres
Introduction
SEAT recommend that all work on tyres and wheels is carried out by a Speci-
alised workshop. They have the necessary special tools and replacement
parts, trained personnel and facilities for disposing of the old tyres. SEAT
recommends visiting a Technical Service.
Additional information and warnings:
● Transporting ⇒ page 97
● Braking, stopping and parking ⇒ page 134
● Caring for and cleaning the vehicle exterior ⇒ page 197
● Notes for the user ⇒ page 233
● Vehicle tool kit ⇒ page 246
● Wheel trims ⇒ page 248
● Change wheel ⇒ page 250
● Tire Mobility Set ⇒ page 256
WARNING
The vehicle cannot be totally controlled or braked if the tyres (new or
used) are worn or damaged.
● Incorrect use of wheels and tyres could make driving more dangerous
and result in serious accidents and damage.
● All four wheels must be fitted with radial tyres of the same type, size
(rolling circumference) and the same tread pattern.
● New tyres do not give maximum grip and will not have reached their
maximum braking capacity to start with, and therefore need running in.
To prevent accidents and major damage, extreme caution should be tak-
en for the first 600 km (400 miles).
WARNING (Continued)
● Check tyre pressures regularly and ensure they are maintained at the
pressures indicated. If the tyre pressure is too low, the tyres could over-
heat, resulting in tread detachment or even burst tyres.
● Never drive on damaged (punctured, cut, cracked or dented) or worn
tyres. Driving on damaged or worn tyres could result in burst tyres, seri-
ous accidents or damage. Worn or damaged tyres must be replaced im-
mediately.
● Never exceed the maximum permitted speed or loads specified for the
type of tyre fitted on your vehicle.
● The efficiency of driver and brake assist systems also depends on the
grip of the tyres.
● If you notice unusual vibration or if the vehicle pulls to one side when
driving, stop the vehicle immediately and check the tyres and wheels for
damage.
● To minimise the risk of losing control of the vehicle or causing a seri-
ous accident, never undo the bolted joints of beadlock wheels.
● Never mount used tyres or wheels if you are not sure of their previous
history. They may be damaged, although the damage is not immediately
visible.
● Old tyres, even if they have never been used, may lose air or burst un-
expectedly while driving, especially at high speeds, resulting in serious
accident and injury. If tyres are over six years old, they should only be
used in an emergency and with extreme caution.
Note
For technical reasons, it is not generally possible to use the wheels from
other vehicles. In some cases, this may also be true for the same model of
wheel. Please refer to the vehicle documents or ask at a Technical Service. 

211
Vehicle care and maintenance
About your tyres and wheels
Fig. 120 Diagram for
changing wheels
The tyres of a vehicle are the components which are subjected to most
stress and are the most underestimated. Tyres are very important, as the
support offered by their narrow surface is the only point of contact between
the vehicle and the road.
The service life of tyres is dependent on tyre pressure, driving style, the care
they receive and the correct fitting.
The tyres and wheel rims are an essential part of the vehicle's design. The
tyres and rims approved by SEAT are specially matched to the characteris-
tics of the vehicle and our critical to good road holding and safe handling.
Avoiding damage to tyres and wheels
● If you have to drive over a kerb or similar obstacle, drive very slowly and
as near as possible at a right angle to the kerb.
● Inspect the tyres regularly for damage (punctures, cuts, cracks, dents).
● Remove any foreign bodies found on the outside of the tread provided
they have not passed through the wall of the tyre
⇒  page 216.
● The instructions for tyre control systems should always be observed. ●
Replace damaged or worn tyres as soon as possible ⇒ page 216.
● Regularly check tyres for non-visible damage ⇒ page 216.
● Never exceed the maximum permitted speed or loads specified for the
type of tyre fitted on your vehicle ⇒ page 218.
● Do not allow tyres (including the spare wheel) to come into contact with
aggressive substances, grease, oil, fuel or brake fluid ⇒ 
.
● Lost valve caps should be replaced immediately.
Tyres with directional tread pattern
Tyres with directional tread pattern have been designed to operate best
when rotating in only one direction. An arrow on the tyre sidewall indicates
the direction of rotation on tyres with directional tread ⇒ page 218. Always
observe the direction of rotation indicated when mounting the wheel. This
guarantees optimum grip and helps to avoid aquaplaning, excessive noise
and wear.
If the tyre is mounted in the opposite direction of rotation, drive with ex-
treme caution, as the tyre is no longer being used correctly. This is of partic-
ular importance when the road surface is wet. Change the tyre as soon as
possible or remount it with the correct direction of rotation.
Interchanging tyres
To ensure that the wear is equal on all tyres the wheels should be changed
round from time to time according to the system ⇒ Fig. 120. All the tyres will
then last for about the same time.
SEAT recommends you take the vehicle to a Specialised workshop to have
the tyres changed.
Tyres that are over 6 years old
Tyres are subject to an ageing process as a result of physical and chemical
processes. This may affect their performance. Tyres which are stored for
long periods of time without being used, harden and become more fragile
than tyres which are in constant use.
SEAT recommends that tyres over six years old are replaced with new tyres.
This also applies to tyres (including the spare wheel) which appear to be in 
Vehicle diagramPrior to a journey...While drivingCare, cleaning and mainte-
nanceIf and whenTechnical Data

212Vehicle care and maintenance
perfect condition on the outside and which have a tread depth within the
values stipulated by the Law ⇒ 
.
The date of manufacture, part of the tyre identification number (TIN), indi-
cates the age of the tyre ( ) ⇒ page 218.
Storing tyres
Mark tyres when you remove them to indicate the direction of rotation (left,
right, forwards, backwards). This ensures you will be able to mount them
correctly when you replace them. When removed, the wheels and/or tyres
should be stored in a cool, dry and preferably dark location. Do not place
tyres mounted on the wheel in a vertical position.
Protect tyres not mounted on wheels from dirt by storing them in suitable
bags and standing them on the ground on their tread.
WARNING
Aggressive fluids or substances could result in visible or invisible dam-
age with the consequent risks.
● Always ensure that tyres do not come into contact with chemical
products, oil, grease, fuel, brake fluid or other aggressive substances.
WARNING
Old tyres, even if they have never been used, may lose air or burst unex-
pectedly while driving, resulting in serious accident or damage.
● If tyres are over six years old, they should only be used in an emer-
gency and with extreme caution.
For the sake of the environment
Old tyres must be disposed of by qualified personnel according to the laws
in the country concerned. Wheel rims
The design of wheel bolts is matched to the rims. If different rims are fitted,
the correct wheel bolts with the right length and correctly shaped bolt
heads must be used. This ensures that wheels are fitted securely and that
the brake system functions correctly
⇒ page 250.
For technical reasons, it is not generally possible to use the wheels from
other vehicles. In some cases, this may also be true for the same model of
wheel.
The tyres and rims approved by SEAT are specially matched to the character-
istics of the vehicle and are critical to good road holding and safe handling.
Wheel bolts
Wheel bolts must be tightened to the correct torque ⇒ page 250.
Beadlock wheel rims
Beadlock wheel rims have various components. These are joined together
by special bolts using a special procedure. This ensures good performance,
a better seal, improved safety and wheel run out. Therefore, worn rims
should always be replaced and must only be repaired in a Specialised work-
shop. SEAT recommends visiting a Technical Service ⇒ 
.
Wheel trims with bolted trims
Wheel trims may be fitted with interchangeable trim parts which are attach-
ed to the rim using self-locking bolts. Worn trims should only be replaced at
a Specialised workshop. SEAT recommends visiting a Technical Service
⇒ 
. 

220Vehicle care and maintenance
Tyre code (example)MeaningTEMPERATURE ATyre temperature resistance at higher test
speeds (A, B or C).
If the tyre has other markings, these are specific tyre manufacturer codes
or specific national codes, e.g. for Brazil or China.
a)
The letters TIN refer to the tyre serial number.
Tyres with directional tread pattern
Tyres with directional tread pattern have been designed to operate best
when rotating in only one direction. An arrow on the tyre sidewall indicates
the direction of rotation on tyres with directional tread. Always observe the
direction of rotation indicated when mounting the wheel. This guarantees
optimum grip and helps to avoid aquaplaning, excessive noise and wear.
If the tyre is mounted in the opposite direction of rotation, drive with ex-
treme caution, as the tyre is no longer being used correctly. This is of partic-
ular importance when the road surface is wet. Change the tyre as soon as
possible or remount it with the correct direction of rotation.
Tyre load rating
The load rating code indicates the maximum load in kilograms each wheel
can carry (load capacity).
425 kg
462 kg
487 kg
515 kg
545 kg
615 kg
Speed rating
The speed rating indicates the maximum speed permitted for the tyres.
max. 150 km/h (93 mph)
max. 160 km/h (99 mph)
78
81
83
85
87
91
P
Q max. 170 km/h (106 mph)
max. 180 km/h (112 mph)
max. 190 km/h (118 mph)
max. 200 km/h (124 mph)
max. 210 km/h (130 mph)
max. 240 km/h (149 mph)
max. 240 km/h (149 mph)
max. 270 km/h (168 mph)
max. 300 km/h (186 mph)
Some manufacturers use the letters “ZR” for tyres with a maximum author-
ised speed above 240 km/h (149 mph). 
Snow chains
When using snow chains, applicable local legislation and maximum permit-
ted speed limits must be observed.
In winter weather, snow chains not only help to improve grip but also im-
prove the braking capacity.
The fitting of chains is permitted only on front wheels and only with the fol-
lowing combinations of wheel trims and tyres :
Tyre sizeWheel rim165/70 R145 J x 14 offset of 35
SEAT recommends you ask a Technical Service for further information on
wheel, tyre and chain sizes.
Wherever possible use fine-link chains measuring less than 15 mm includ-
ing the lock. 
R
S
T
U
H
V
Z
W
Y

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.

Vehicle diagramPrior to a journey...While drivingCare, cleaning and mainte-
nanceIf and whenTechnical Data

238Practical information
If and when
Practical information
Frequently asked questions
If you suspect that the vehicle has a fault or is damaged when using it, be-
fore consulting a SEAT dealership or a specialised workshop, carefully read
the following instructions. Similarly, the terms in the alphabetical index
“Things to note” or “Checklist” may be of help.
ProblemPossible causes,
among othersPossible solution
The engine does
not start.
The vehicle battery is
flat.– Carry out the jump start
⇒ page 273.
– Charge the battery
⇒ page 193.
You are using an incor-
rect vehicle key.Use the correct key
⇒ page 28.
The fuel tank level is
insufficient.Refuel ⇒ page 171.
The vehicle cannot
be locked or un-
locked with the
key.
– Vehicle key battery is
flat.
– Too far away from
the vehicle.
– Buttons pressed out-
side the radius of
reach.– Change the battery
⇒ page 28.
– Move closer to the vehicle.
– Synchronize the vehicle
key ⇒ page 28.
– Manually lock or unlock
the vehicle ⇒ page 243.
Unusual noises.
Engine cold, City Safe-
ty Assist system, steer-
ing column electronic
lock.See entry “Noises” in the de-
tailed alphabetical index.
ProblemPossible causes,
among othersPossible solution
Handling is
strange.
Assistance systems ac-
tive.See entry “Assistance sys-
tems” in the detailed alpha-
betical index.
You are using an incor-
rect tyre pressure.Check the tyre pressure
⇒ page 210.
Damage to the wheel
trims or tyres.
Inspect wheel trims and
tyres regularly for damage
⇒ page 210 and replace
them if necessary
⇒ page 250.
Vehicle has no
jack, spare wheel
or tire mobility set
present.Equipment subject to
the vehicle.
No direct solution, depends
on the equipment. In this
case, you should contact a
SEAT Dealership
⇒ page 246.
Surface not correct-
ly illuminated.
– Headlights covered
for driving on the left-
hand side or right-
hand side.
– Headlight adjust-
ment too high.
– Faulty bulbs.
– Dipped headlights
switched off.– Cover the headlights for
driving on the left-hand side
or right-hand side
⇒ page 84.
– Adjust the headlight range
⇒ page 84.
– Change the bulbs
⇒ page 264.
– Switch on the dipped
headlights ⇒ page 84. 

240Practical information
In case of emergency
Introduction
Additional information and warnings:
● Braking, stopping and parking ⇒ page 134
● Emergency locking and unlocking ⇒ page 243
● Vehicle tools ⇒ page 246
● Change wheel ⇒ page 250
WARNING
A faulty vehicle in traffic represents a risk of accident for the driver and
for other road users.
● Stop the vehicle safely as soon as possible. Park the vehicle a safe
distance from surrounding traffic to lock all the doors in case of an emer-
gency. Turn on the hazard warning lights to warn other road users.
● Never leave children or disabled people alone in the vehicle if the
doors are to be locked. In case of an emergency, passengers will be trap-
ped inside the vehicle. Individuals locked in the vehicle can be exposed
to very high or very low temperatures.
 Protecting yourself and securing the vehicle
Fig. 130 Dash panel:
Button to switch on and
off the hazard warning
lights system
Always fulfil legal requirements for securing a broken down vehicle. In a
number of countries it is now obligatory, for example, to turn on the hazard
warning lights and use a reflective safety vest ⇒ page 242.
Checklist
For your own safety and that of other passengers, the following points
should be observed in the order given ⇒ 
:
1. Park the vehicle a safe distance from traffic and on suitable ground ⇒ 
.
2. Turn on the hazard warning lights system with the button 
⇒ Fig. 130.
3. Apply the handbrake firmly ⇒ page 134.
4. Put the gearbox lever in neutral or the selector lever in position P ⇒ page 124.
5. Switch off the engine and remove the key from the ignition.
6. Have all occupants leave the vehicle and move to safety, for example behind a guard rail. 