technical data Seat Mii 2015 Manual Online

Wheels and tyres
WARNING
Aggressive fluids or substances could result
in v i
sible or invisible damage with the conse-
quent risks.
● Always ensure that tyres do not come into
contact
with chemical products, oil, grease,
fuel, brake fluid or other aggressive substan-
ces. WARNING
Old tyres, even if they have never been used,
ma y

lose air or burst unexpectedly while driv-
ing, resulting in serious accident or damage.
● If tyres are over six years old, they should
only be u
sed in an emergency and with ex-
treme caution. For the sake of the environment
Old tyres must be disposed of by qualified
personnel ac

cording to the laws in the coun-
try concerned. Wheels
The design of wheel bolts is matched to the
rims. If
diff
er

ent rims are fitted, the correct
wheel bolts with the right length and correct-
ly shaped bolt heads must be used. This en-
sures that wheels are fitted securely and that
the brake system functions correctly
››› page 71. For technical reasons, it is not generally pos-
sibl

e 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 spe-
cially matched to the characteristics of the
vehicle and are critical to good road holding
and safe handling.
Note for Italy: A SEAT Service Centre should
be consulted whether different sized wheels
or tyres to those originally fitted by SEAT may
be fitted, as well as the combinations al-
lowed between the front axle (axle 1) and
back axle (axle 2).
Wheel bolts
Wheel bolts must be tightened to the correct
torque ››› page 71.
Beadlock wheel rims
Beadlock wheel rims have various compo-
nents. 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 on-
ly be repaired in a specialised workshop.
SEAT recommends visiting a technical service
››› .Wheel rims with bolted trims
Wheel
rims
m
ay 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
mak e driv

ing more dangerous and result in
serious accidents and damage.
● Only wheel rims which have been approved
for use w
ith your vehicle should be used.
● Inspect wheel rims regularly for damage
and repl
ace as required. WARNING
If the bolted joints of wheel rims with bolted
ring trims ar

e not correctly tightened or loos-
ened, this could result in serious accident.
● Never loosen the bolted joints of wheel
rims with bo
lted ring trims.
● Any work relating to wheel rims with bolted
rims shoul
d be carried out at specialised
workshop. SEAT recommends taking your car
in for technical service. 199
Technical data
Advice
Operation
Emergencies
Safety

Wheels and tyres
››› Fig. 173 i s
loc ated on the driver's door pil-
lar.
Under-inflation or over-inflation will reduce
the life of the tyres considerably and also im-
pair the car's handling ››› . It is essential to
m aint
ain the c

orrect tyre pressures, especial-
ly if driving at high speeds. Incorrect tyre
pressure causes premature wear and could
cause tyre blow-out.
The pressure should therefore be checked at
least once a month and before starting a
journey.
As a general rule, the pressures given are for
cold tyres. When the tyres are hot, the pres-
sures are greater.
Never deflate a hot tyre in order to obtain the
required pressure. This could result in very
low tyre pressures which may lead to sudden
blow-outs.
Tyre pressure monitoring system
Check tyre pressures only when the vehicle
has not been driven for more than a few kilo-
metres at low speeds in the past three hours.
● The tyre pressures should be checked regu-
larly, and on
ly when the tyres are cold. Al-
ways check all tyres, including the spare
wheel. Tyre pressures should be checked
more often in colder regions, and only when
the vehicle has not been driven recently. Al-
ways use a correctly-operating tyre gauge. ●
Adjust
tyre pressures to the loads carried in
the vehicle.
● After adjusting the tyre pressure, check that
the caps
are properly screwed on.
The spare wheel or temporary spare wheel
must always be kept at the maximum pres-
sure stipulated. WARNING
If tyre pressures are too high or too low, the
tyr e m

ay deflate or burst suddenly while driv-
ing. This could result in a serious accident.
● If the tyre pressure is too low, they could
overhe
at, resulting in tread detachment or
even burst tyres.
● When driving at high speeds and/or fully
loaded, the ty
re could suddenly overheat,
burst or be subject to tread detachment, with
the resultant loss of control of the vehicle.
● Tyre pressures which are too high or too
low reduc
e the service life of the tyre, affect-
ing the vehicle's performance.
● Tyre pressures should be checked regularly,
at le
ast once a month and before long jour-
neys.
● Adjust the pressures of all the tyres to the
vehicl
e load.
● Never deflate excess pressure from hot
tyre
s. CAUTION
● Tak e c

are 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. Wear indicator depth profile
Fig. 174
Tyre tread: tread wear indicators » 201Technical data
Advice
Operation
Emergencies
Safety

Wheels and tyres
tyres wear too quickly, have the wheel align-
ment c
hec
ked at a specialised workshop. WARNING
If you notice unusual vibration or the car pulls
to one s ide whi

le driving, this may indicate
that one of the tyres is damaged.
● Reduce speed immediately and stop, while
obser
ving the highway code.
● Check the wheels and tyres for damage.
● Never carry on driving on worn tyres or
wheels. Reque
st qualified assistance immedi-
ately.
● If there is no visible exterior damage, drive
slowly
and carefully to the nearest special-
ised workshop and have the vehicle checked. Tyre monitor system* 
Fig. 175
Centre console: tyre monitor system
b utt
on The tyre control lamp compares wheel revolu-
tion
s
and w

ith it, the wheel diameter of each
wheel using the ESC. If the diameter of a
wheel changes, the tyre control lamp 
lights up. The wheel diameter changes when:
● Tyre pressure is insufficient.
● The tyre structure is damaged.
● The vehicle is unbalanced because of a
load.
● The wheel

s of one axle are under more
pres
sure (for example, driving with a trailer or
on steep slopes).
● The vehicle is fitted with snow chains.
● The temporary spare wheel is fitted.
● The wheel on one axle is changed.
Tyr
e pressure adjustment
On adjusting tyre pressure or changing one
or more wheels, the ››› Fig. 175 button must
be kept pressed down, with the ignition on,
until an acoustic signal is heard.
If the wheels are under excessive load (for ex-
ample, driving with a trailer or heavy load),
the tyre pressure must be increased to the
recommended value for a full load (see the
sticker on the inside of the fuel flap). If the
tyre monitor system button is pressed down,
the new tyre pressures are confirmed. The tyre pressure control lamp
 lights up
If
the tyre 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 tyr e pr

essure 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 s
porty 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
warnin g l

amp  lights up after turning the
ignition on. This should turn off after a brief
journey. 203
Technical data
Advice
Operation
Emergencies
Safety

Wheels and tyres
●
Rep l
ace the temporary spare wheel for a
normal wheel as soon as possible. The com-
pact temporary spare wheel is only intended
for temporary use over short distances.
● The temporary spare wheel must always be
secured w
ith the factory supplied wheel
bolts.
● You should never use more than one tem-
porary
spare wheel. ●
Aft er mou

nting the temporary spare wheel,
check the tyre pressure as soon as possible
››› page 200.
● Snow chains on the temporary spare wheel
are not permitt
ed. Note
Wherever possible, secure the spare wheel,
t empor ar

y spare wheel or the replaced wheel
safely in the luggage compartment. In vehi- cles with anti-puncture kit, it is not possible
to sec
ur

e the defective wheel. Tyre code
Fig. 177
Universal code on tyres Radial
Rim di
amet
er c

ode
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
12
205
Technical data
Advice
Operation
Emergencies
Safety

Wheels and tyresTyre code (example)Meaning
Made in GermanyCountry of manufacture.
MAX LOAD 615 KGUS load rating, indicating maximum permitted load per tyre.
MAX INFLATION 350 KPA (51 PSI)US limit, indicating maximum permitted tyre pressure.
SIDEWALL 1 PLY RAYONInformation about tyre wall components:
1 layer of rayon (artificial silk).
TREAD 4 PLIES
1 RAYON + 2 STEEL + 1 NYLONInformation about tread components:
In the example, there are 4 layers below the tread: 1 layer of rayon (artificial silk), 2 layers of steel reinforcement and 1
layer of nylon.
Information for the end consumer concerning the comparative values of the established base tyres (standardised test procedures)
››› page 175:
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 rot
ation, 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 k
g
545 kg
615 kg
Speed rating
The speed rating indicates the maximum
speed permitted for the tyres. »
78
81
83
85
87
91
207
Technical data
Advice
Operation
Emergencies
Safety

Technical features
Technical data
T ec
hnic
al features
Important information Introduction The information in the vehicle documentation
alwa
y

s takes precedence over the informa-
tion in this Instruction Manual.
All technical specifications provided in this
documentation are valid for the standard
model in Spain. The vehicle data card inclu-
ded in the Maintenance Programme or the
vehicle registration documents shows which
engine is installed in the vehicle.
The figures may be different depending
whether additional equipment is fitted, for
different models, for special vehicles and for
other countries. Abbreviations used in the Technical Specifi-
cation
s

section
kWKilowatt, engine power measurement.
PSPferdestärke (horsepower), formerly
used to denote engine power.
rpmRevolutions per minute - engine speed.
NmNewton metres, unit of engine torque.
litres per100 kmFuel consumption in litres per 100 km
(70 miles).
g/kmCarbon dioxide emissions in grams per
km (mile) travelled.
CO 2Carbon dioxide
CNCetane number, indication of the diesel
combustion power.
RONResearch octane number, indication of
the knock resistance of petrol. Vehicle identification data
Fig. 178
Vehicle data label. Fig. 179
Vehicle identification number. Vehicle identification number
The
v
ehic

le identification number (chassis
number) can be read from outside the vehicle
through a viewer in the windscreen
››› Fig. 179. This viewer is located in the lower »
209
Technical data
Advice
Operation
Emergencies
Safety

Technical data
part of the windscreen. The vehicle identifica-
tion number (c h
a
ssis number) is also stam-
ped on the right water drain channel. The wa-
ter drain channel is located between the sus-
pension tower and the wing. Open the bon-
net to read the vehicle identification number
.
Vehicle data plate
The vehicle data label ››› Fig. 178 is at the
front of the spare wheel well. It contains the
following data:
Vehicle identification number (chassis
number).
Vehicle type, engine power, gearbox type.
Engine and gearbox code, paint number,
interior equipment.
Optional extras, PR numbers.
These data are also provided in the Mainte-
nance Programme.
Specific vehicle weight information The instructions in the official vehicle docu-
ments
t
ak

e precedence. All the technical data
provided in this documentation is applicable
to the basic model. The vehicle data label in
the Maintenance Programme or the vehicle
documentation shows which engine is instal-
led in your vehicle. 1 2
3
4 The figures may be different depending
whether a
d
dition

al equipment is fitted, for
different models and for special vehicles.
Kerb weight values shown in the following ta-
ble apply to a vehicle with driver (75 kg), liq-
uids including a fuel tank 90% full, in addi-
tion to tools and a spare wheel ››› . The
k erb w
eight

indicated increases with optional
equipment and retrofitting of accessories,
while proportionally reducing carrying ca-
pacity.
The load is equivalent to the following
weights:
● Passengers.
● Total equipment.
● Roof load, included in the carrier. WARNING
Exceeding the maximum authorised weight
and the loa d on the ax

les could cause dam-
age to the vehicle, accidents and serious in-
juries.
● The real load on the axles should never ex-
ceed the max
imum permitted.
● The load and its distribution in the vehicle
have eff
ects on the vehicle handling and the
braking ability. Always drive at a suitable
speed. CAUTION
Distribute the load as uniformly and as low
down on the v

ehicle as possible. When trans-
porting heavy objects in the luggage com-
partment, these should be placed as far for-
ward as possible or over the rear axle to have
as little influence on handling as possible. Information on fuel consumption
The consumption and emission values indi-
cat
ed do not

refer to one specific vehicle.
They are only to be used to compare the val-
ues of the different vehicle versions. The fuel
consumption and CO 2 emissions of a vehicle
not only depend on the effective use of fuel.
They also depend on your driving style and
other non-technical factors.
Calculation of fuel consumption
Fuel consumption and emission values are
determined according to the current version
of the 715/2007/EC or 80/1268/EEC regula-
tion and are valid for the vehicle kerb weight.
The specifications do not refer to an individu-
al vehicle. To measure the fuel consumption,
two measuring cycles are carried out on a
rolling road test bed. The test criteria are as
follows:
210

Technical featuresUrban cycle
Measurement of the urban cycle starts
with an engine cold start. City driving is
then simulated at between 0 and
50 km/h (0 and 31 mph).
Road cycle
In the road cycle simulation, the car un-
dergoes frequent acceleration and
braking in all gears, as in normal every-
day driving. The road speed ranges
from 0 to 120 km/h (0 and 75 mph).
Combined
The average combined consumption is
calculated with a weighting of around
37 % for the urban cycle and 63 % for
the road cycle.
CO
2 emis-
sions of the
combination
The exhaust gases are collected during
both driving cycles to calculate carbon
dioxide emissions (urban and road).
The gas composition is analysed below
to evaluate the CO 2 content and other
emissions. Note
● The kerb w eight

may vary according to the
vehicle equipment. This could raise consump-
tion and the CO 2 emissions slightly.
● In practice, consumption values could be
different
to the values calculated based on
the 715/2007/EC or 80/1268/EEC regula-
tions. Wheels
Ty
r

e pressure, snow chains, wheel
bolts Tyre pressures
The stic
k

er with the tyre pressure values can
be found on the inside of the fuel tank flap.
The tyre pressure values are given for cold
tyres ››› page 200. The slightly raised pres-
sures of warm tyres must not be reduced.
››› Snow chains
Sno
w c
h

ains may be fitted only to the front
wheels.
Consult the section “wheels” of this manual.
Wheel bolts
After the wheels have been changed, the
tightening torque of the wheel bolts should
be checked as soon as possible with a torque
wrench ››› . The tightening torque for steel
and al lo
y

wheels is 140 Nm. WARNING
● Check the ty

re pressure at least once per
month. Checking the tyre pressure is very im-
portant. If the tyre pressure is too high or too
low, there is an increased danger of accidents
- particularly at high speeds. ●
If the tight enin

g torque of the wheel bolts
is too low, they could loosen while the vehi-
cle is in motion. Risk of accident! If the tight-
ening torque is too high, the wheel bolts and
threads can be damaged. Note
We recommend that you ask your Technical
Ser vic

e for information about appropriate
wheel, tyre and snow chain size. 211
Technical data
Advice
Operation
Emergencies
Safety

Technical data
Engine data P etr
o
l engine 1.0 44 kW (60 PS) Engine specifications
Power output in kW (PS) at rpmMaximum torque (Nm at rpm)No. of cylinders/displacement (cm
3
)Fuel
44 (60)/5,000-6,00095/3,000-4,3003/999Super 95 RON
PerformanceManualEcomotiveStart-Stop
EcomotiveAutomatic
Top speed (km/h)160 (4)161 (4)161 (4)160 (4)
Acceleration from 0-80 km/h (seconds)9.19.19.49.4
Acceleration from 0-100 km/h (seconds)14.414.415.315.3
Consumption (l/100 km)/ CO 2 (g/km)
Urban cycle5.6/1305/1164.6/1065.3/123
Extra-urban cycle3.9/913.6/843.7/873.9/91
Combined4.5/1054.1/954/934.4/103
Weights (in kg)
Gross vehicle weight1,2901,2901,3001,290
Weight in running order (with driver)929940931932
Gross front axle weight680680680680
Gross rear axle weight640640640640
Permitted roof load50505050 212

Technical features
Petrol engine 1.0 55 kW (75 PS) Engine specificationsPower output in kW (PS) at rpmMaximum torque (Nm at rpm)No. of cylinders/displacement (cm
3
)Fuel
55 (75)/6,20095/3,000-4,3003/999Super 95 RON
PerformanceManualStart-StopStart-Stop
EcomotiveAutomatic
Top speed (km/h)171 (4)172 (4)172 (4)171 (4)
Acceleration from 0-80 km/h (seconds)8.38.39.29.2
Acceleration from 0-100 km/h (seconds)13.213.213.913.9
Consumption (l/100 km)/ CO 2 (g/km)
Urban cycle5.8/1345.1/1184.6/1065.5/127
Extra-urban cycle3.9/903.7/873.8/894/94
Combined4.6/1064.2/984.1/954.5/105
Weights (in kg)
Gross vehicle weight1,2901,2901,3001,290
Weight in running order (with driver)929940931932
Gross front axle weight680680680680
Gross rear axle weight640640640640
Permitted roof load50505050 213
Technical data
Advice
Operation
Emergencies
Safety