2014 Seat Mii technical specifications

Wheels and tyres
Wheel rims with bolted trims
Wheel rims may be fitted with interchangea-
ble trim parts which are attached to the rim
using self-locking bolts. Worn trims should
only be replaced at a specialised workshop.
SEAT recommends visiting a technical service
››› .
WARNING
The use of worn or damaged wheel rims could
make driving more dangerous and result in
serious accidents and damage.
● Only wheel rims which have been approved
for use with your vehicle should be used.
● Inspect wheel rims regularly for damage
and replace as required. WARNING
If the bolted joints of wheel rims with bolted
ring trims are not correctly tightened or loos-
ened, this could result in serious accident.
● Never loosen the bolted joints of wheel
rims with bolted ring trims.
● Any work relating to wheel rims with bolted
rims should be carried out at specialised
workshop. SEAT recommends taking your car
in for technical service. Replacement of wheel rims and new
tyres
New tyres
● When tyres are new, drive with extreme
caution for the first 600 km, as all tyres need
to be run-in . Tyres which have not been run-
in do not
have such good grip ››› or brak-
ing capacity ››› .
● All four wheels must be fitted with radial
tyres of the same type, size (rolling circumfer-
ence) and the same tread pattern.
● The tread depth of new tyres may vary, ac-
cording to the type and make of tyre and the
tread pattern.
Replacing tyres
● Where possible, always replace both
wheels on an axle (both wheels on the front
axle or both wheels on the rear axle) ››› .
● Only replace used tyres with those author-
ised by SEAT for the corresponding type vehi-
cle. Pay special attention to size, diameter,
and maximum load and speed capacity.
● Never use tyres which are larger than SEAT
approved tyres. If the tyres are too big, they
may knock or rub against the chassis or other
components, resulting in damage. WARNING
New tyres do not give maximum grip and will
not have reached their maximum braking ca-
pacity to start with, and therefore need run-
ning in.
● To prevent accidents and major damage,
extreme caution should be taken for the first
600 km. WARNING
There should be adequate space between the
tyres and the vehicle in accordance with the
vehicle design. If this is not the case, the
tyres may rub against parts of the running
gear, chassis or brake lines, leading to faults
in the brake system or to tread detachment,
and the risk of burst tyres.
● The true tyre dimension should not be
greater than the dimensions of tyres manu-
factured and approved by SEAT and should
not rub against parts of the vehicle. Note
Although tyres may be shown as being the
same size, the true dimensions of different
types of tyre may vary with respect to the
nominal size, or tread patterns may be differ-
ent. Note
If you use tyres that are approved by SEAT,
you can be sure that the true tyre dimensions » 161Technical specifications
Advice
Operation
Safety

Wheels and tyres
CAUTION
● Take care not to tilt the manometer when
placing it on the valve. Otherwise, the valve
may be damaged.
● If tyre valves are not protected by caps, or if
the caps are not screwed on correctly, they
may become damaged. Check that the caps
are identical to the standard caps and have
been correctly tightened. For the sake of the environment
Under-inflated tyres will increase fuel con-
sumption. Tread depth and wear indicators
Fig. 116
Tyre tread: tread wear indicators Tread depth
Certain driving conditions require a deeper
tread, as well as needing the tread to be ap- proximately the same on the front and rear
tyres. This is particularly important when
driving in winter, in cold temperatures and on
wet roads
››› .
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 indi-
cators. Observe legal requirements in each
country.
The performance of winter tyres is much re-
duced when the tread has worn to 4 mm.
The tread depth of new tyres may vary, ac-
cording 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. 116 tread wear indicators
ru nnin
g across the tread. A number of these
indicators are equally spaced around the tyre
tread. Certain marks on the tyre walls (e.g.
the letters “TWI” or other symbols) indicate
the position of the wear indicators.
Tread wear indicators indicate if a tyre is
worn. They must always be replaced before
the tyre tread has worn to the level of the in-
dicator. 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 in-
dicators are at the same level as the tread
pattern.
● Worn tyres have significantly reduced grip,
especially on wet surfaces, increasing the
risk of “aquaplaning”.
● Worn tyres make control of the vehicle
more difficult in normal or difficult driving
conditions, increasing the braking distance
and the risk of skidding. Damaged tyres
Damage to wheels and tyres is often not im-
mediately visible. If you notice unusual
vibra-
tion or the car
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 special-
ised workshop and have the vehicle checked. »
163
Technical specifications
Advice
Operation
Safety

Wheels and tyres
The tyre pressure control lamp  lights up
If the ty
re pressure of a wheel is much lower
than the value set by the driver, then the tyre
pressure control lamp ››› will light up.
WARNING
● When the tyre pressure control lamp lights
up, reduce speed immediately and avoid any
sudden turning or braking manoeuvre. Stop
when possible, and check the tyre pressure
and status.
● The driver is responsible for maintaining
correct tyre pressures. For this reason, tyre
pressure must be regularly checked.
● Under certain circumstances (e.g. when
driving in a sporty manner, in winter condi-
tions or on a dirt track) the tyre control lamp
may light up belatedly or may function incor-
rectly. Note
If the battery is disconnected, the yellow
warning lamp  lights up after turning the
ignition on.

This should turn off after a brief
journey. Spare wheel or temporary spare
wheel*
Fig. 118
In the luggage compartment: hand
controlled wheel for securing the spare wheel Removing the spare wheel
● Open the rear lid and lift the luggage com-
partment shelf ››› page 73 .
● If nec

essary, remove the boot variable floor
››› page 73.
● Lift

up the carpet from the recess and re-
move it from the luggage compartment.
● 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. 118 by turning it in an anticlockwise
direction, and t
ake out the spare wheel. Storing the replaced wheel
● Pull back the carpet.
● With the wheel rim facing downwards, sit-
uate the replaced wheel in the spare wheel
well so that the wheel rim central hole coin-
cides with the opening.
● 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 boot.
● Replace the carpet on the boot 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 possi-
ble.
Please observe driving advice:
● Do not drive faster than 80 km/h (50 mph).
● Avoid heavy acceleration, hard braking and
fast cornering. »
165
Technical specifications
Advice
Operation
Safety

Wheels and tyres
Tyre code Fig. 119
Universal code on tyres Radial
Rim diameter code
Load index & speed rating
DOT tyre identification number
Severe snow conditions
Tyre ply composition and materials used
Max. load rating
Treadwear, traction and temperature
grades
Max. permissible inflation pressure
Passenger car tyre
Nominal width of tyre in millimetres
Ratio of height to width (aspect ratio)
1 2
3
4
5
6
7
8
9
10
11
12Tyre code (example)Meaning
Make, logotypeManufacturer
Product nameName of tyre assigned by manufacturer.
P255 / 55 R 18Size:
PPassenger vehicle code.
255Nominal width between walls, in mm.
55Height/width ratio in %
RTyre type (R indicates "radial").
18Rim diameter in inches»
167
Technical specifications
Advice
Operation
Safety

Wheels and tyresTyre code (example)Meaning
TREADWEAR 220Relative service life of the tyre, with respect to specific US standard test.
TRACTION ABraking capacity of tyre on wet surface (AA, A, B or C).
TEMPERATURE 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 opti-
mum grip and helps to avoid aquaplaning,
grip, noise and wear.
If the tyre is mounted in the opposite direc-
tion of rotation, drive with extreme caution,
as the tyre is no longer being used correctly.
This is of particular importance when the
road surface is wet. Change the tyre as soon
as possible or remount it with the correct di-
rection of rotation.
Tyre load rating
The load rating code indicates the maximum
load in kilogrammes 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)
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)
78
81
83
85
87
91
P
Q
R
S
T
U
H
V
Z max. 270 km/h (168 mph)
max. 300 km/h (186 mph)
Some manufacturers use the letters “ZR” for
tyres with a maximum authorised speed
above 240 km/h.
Snow chains When using snow chains, applicable local
legislation and maximum permitted speed
limits must be observed.
In winter weather, snow chains not only help
to improve grip but also improve the braking
capacity.
The fitting of chains is permitted
only on
front wheels and with the following combi-
nation

s of wheel trims and tyres :
»
W
Y
169
Technical specifications
Advice
Operation
Safety

Emergencies
Fire extinguisher
A fire extinguisher can be stored in a holder
in the passenger seat footwell.
The fire extinguisher must conform to legal
requirements, be ready for use and be
checked regularly. Check the certification
seal on the extinguisher. WARNING
Loose objects in the vehicle interior can be vi-
olently thrown in case of a sudden manoeu-
vre or braking and especially in accidents
causing serious injury.
● Secure or store fire extinguishers, first aid
kit, reflective vests and warning triangle se-
curely in the vehicle. Protecting yourself and securing the
vehicle
Fig. 121
Dash panel: Button for switching the
hazard lights warning system on and off. Always fulfil legal requirements for securing a
broken down vehicle. In a number of coun-
tries it is now obligatory, for example, to turn
on the hazard warning lights and use a re-
flective safety vest
››› page 170.
For your own safety and that of other passen-
gers, the following points should be ob-
served in the order given:
Park the vehicle a safe distance from
traffic and on suitable ground ››› .
Turn on the hazard warning lights with
the button 
››› Fig. 121.
Apply the handbrake firmly ››› page 89.
Put the gearbox lever in neutral or the
selector lever in position N ››› page 93.
1.
2.
3.
4. Switch off the engine and remove the
key from the ignition.
Have all occupants leave the vehicle and
move to safety, for example behind a
guard rail.
When leaving the vehicle, take all keys
with you.
Place an emergency warning triangle to
indicate the position of your vehicle to
other road users.
Allow the engine to cool and check if a
specialist is required.
When being towed with the hazard warning
lights on, a change in direction or traffic lane
can be indicated as usual using the turn sig-
nal lever. The hazard lights will be interrup-
ted temporarily.
Examples of when to use the hazard warning
lights:
● If the vehicles ahead suddenly slow down
or reach the end of a traffic jam, to warn the
vehicles behind.
● In case of an emergency.
● If the vehicle breaks down.
● When tow-starting or towing.
Always comply with the applicable laws re-
garding the use of hazard warning lights.
If the hazard warning lights are not working,
you must use an alternative method of »
5.
6.
7.
8.
9.
171Technical specifications
Advice
Operation
Safety

Emergencies
● Raise the carpet at the recess (arrow)
››› Fig. 122 . Note
After use, return the jack to its initial position
using the handle in order to securely store it
in the vehicle. Accessing the vehicle tool kit and tyre
mobility system in vehicles fitted with
the SEAT SOUND 7 speaker system
(with subwoofer)*
●
Open the boot hatch and lift the shelf.
● If necessary, remove the boot variable floor
››› page 76 .
● Lif t
up the carpet from the recess and re-
move it from the luggage compartment.
● Disconnect the subwoofer’s speaker cable.
● Completely remove the hand-controlled
wheel from the centre of the subwoofer
speaker by turning it anti-clockwise.
● Take out the subwoofer, which is on top of
the tools and tyre mobility system.
● When finished, place the tools and system
back in the same way and place as before to
ensure the speaker sits properly in its hous-
ing. ●
Place the subwoofer in the direction of the
arrow and with the word “FRONT” facing for-
ward.
● Reconnect the speaker cable and firmly ro-
tate the securing wheel clockwise so that the
subwoofer is firmly in place.
Components Fig. 123
Components of the vehicle tool kit The vehicle tool kit depends on the vehicle
equipment. The following is a description for
a vehicle with all options.
The individual elements of the vehicle tool
kit

›
›› Fig. 123
Sc
rewdriver with hexagon socket in the
handle for screwing and unscrewing the
wheel bolts. The screwdriver bit is inter-
1 changeable. The screwdriver may be
found underneath the wheel spanner.
Adapter for anti-theft bolt. SEAT recom-
mend you carry the wheel bolt adapter in
the vehicle tool kit at all times. The
code
number of the anti-theft wheel bolt is
s t

amped on the front of the adapter. In
case it is lost, another adapter can be or-
dered using this number. Note the anti-
theft bolt code for the wheels and keep it
in a place other than the vehicle.
Towline anchorage, removable.
Wire hook for pulling off the wheel cover,
integral hubcaps and the wheel bolt
caps.
Jack. Before storing the jack in the tool
kit, fold its hook. The crank must then be
folded tight against the side of the jack in
order for it to be safely stored.
Wheel spanner.
Wheel bolt cap clips. Note
The jack does not generally require any main-
tenance. If required, it should be greased us-
ing universal type grease. 2
3
4
5
6
7
173
Technical specifications
Advice
Operation
Safety

Emergencies
The caps protect the wheel bolts and should
be remounted after changing the tyre.
Full hubcaps Fig. 125
Removing the full hubcap Removing the full hubcap
● Take the wheel brace and the wire hook
from the vehicle tool kit ››› page 172.
● Hook the wire through one of the grooves
on the hubcap.
● Insert the wheel brace onto the wire hook
››› Fig. 125 and pull the hub cap in the direc-
tion sho wn b
y the arrow.
Fitting hubcaps
Press the hubcap against the wheel so that
the space for the valve fits over the tyre valve.
Make sure that the hubcap is correctly fitted
all the way around the wheel. If you are using an anti-theft wheel lock, screw it in the oppo-
site position to the valve.
Wheel bolt caps Fig. 126
Removing the wheel bolt caps Removal
– Fit the plastic clip (vehicle tools
››› page 172 ) over the cap until it clicks into
p l

ace ››› Fig. 126.
– Remove the cap with the plastic clip.
The caps protect the wheel bolts and should
be remounted after changing the tyre.
The anti-theft wheel locking bolt ha
s a spe-
cial cap. This only fits on anti-theft locking
bolts and is not for use with standard wheel
bolts. Wheel bolts
Fig. 127
Changing a wheel: Slacken the
wheel bolts. Fig. 128
Changing a wheel: Tyre valve 1 and
position of anti-theft wheel locking bolt 2 .
Only use the tool supplied with the vehicle to
loosen the wheel bolts.
Loosen the wheel bolts only about one turn
before raising the vehicle with the jack.
»
175
Technical specifications
Advice
Operation
Safety