2017 Seat Mii length

The essentials
Loosening the wheel bolts Fig. 53
Changing a wheel: Slacken the wheel
bo lts. Fig. 54
Changing a wheel: Tyre valve 1 and
po s
ition of
anti-theft wheel locking bolt 2 .
●
Only use the tool supplied with the vehicle
t o loo
sen the wheel

bolts.
● Loosen the wheel bolts only about one turn
before r
aising the vehicle with the jack. ●
If the wheel bo
lt is very tight, you may be
able to loosen it by pushing down on the end
of the wheel brace carefully with your foot.
Hold on to the vehicle for support and take
care not to slip.
Loosening wheel bolts
● Fit the wheel brace as far as it will go over
the wheel bolt
››› Fig. 53.
● Hold the wheel brace at the end and rotate
the bolt ap
proximately one turn anticlockwise
››› .
L oo
senin

g anti-theft wheel bolts
For wheels with full hubcap, the anti-theft
wheel lock must be threaded into position
››› Fig. 54 2 before mounting the hubcap.
Other w
i

se it will not be possible to mount the
entire hubcap.
● Take the adapter for anti-theft wheel bolts
out of the
vehicle tool kit.
● Insert the adapter onto the wheel bolt
›››
Fig. 54. Push it on as far as it will go.
● Fit the wheel brace onto the adapter as far
as po
ssible.
● Hold the wheel brace at the end and rotate
the bolt ap
proximately one turn anticlockwise
››› .Important information about wheel bolts
The wheel
rims and bo

lts have been de-
signed to be fitted to factory options. If differ-
ent 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.
In some circumstances, wheel bolts from the
same model vehicle should not be used.
Wheel bolt tightening torque
The prescribed tightening torque for wheel
bolts for steel and alloy wheels is 110 Nm.
Have the tightening torque of the wheel bolts
checked as soon as possible with a reliable
torque wrench.
If wheel bolts are rusty and it is difficult to
tighten them, the threads should be replaced
and cleaned before checking the tightening
torque.
Never grease or lubricate wheel bolts or the
wheel hub threads. Although they have been
tightened to the prescribed torque, they
could come loose while driving. WARNING
If the wheel bolts are not fitted correctly they
cou l

d be released while driving leading to
loss of vehicle control and serious damage. 38

Transport and practical equipment
WARNING
Driving with the rear lid unlocked or open
cou l
d cause serious injuries.
● Always drive with the rear lid closed.
● Secure all objects in the vehicle. Loose
items c
ould fall out of the vehicle and injure
other road users or damage other vehicles.
● Drive particularly carefully and think
ahead.
● A

void sudden manoeuvres and braking giv-
en that thi
s could cause an uncontrolled
movement of the open rear lid.
● When transporting objects that protrude
out of the lug
gage compartment, indicate
them suitably. Observe legal requirements.
● If objects must project out of the luggage
compar
tment, the rear lid must never be used
to “secure” or “attach” objects.
● If a baggage rack is fitted on the rear lid, it
should be r
emoved before travelling with the
rear lid open. WARNING
Toxic gases may enter the vehicle interior
when the re ar lid i

s open. This could cause
loss of consciousness, carbon monoxide poi-
soning, serious injury and accidents.
● To avoid toxic gases entering the vehicle al-
way
s drive with the rear lid closed.
● In exceptional circumstances, if you must
drive with the r
ear lid open, observe the fol- lowing to reduce the entry of toxic gases in-
side the
v

ehicle:
– Close all windows.
– Disable air recirculation mode.
– Open all of the air outlets on the instru-
ment panel.
– Switch on the blower to maximum. CAUTION
An open boot hatch changes the length and
height of the

vehicle. Driving a loaded vehicle
For the best handling when driving a loaded
v
ehic
l

e, note the following:
● Secure all objects ›››
page 114.
● Accelerate gently and carefully.
● Avoid sudden braking and manoeuvres.
● Brake early.
● If necessary, read the instructions for driv-
ing with a r
oof carrier system ››› page 127. WARNING
A sliding load could considerably affect the
st ab

ility and safety of the vehicle resulting in
an accident with serious consequences.
● Secure loads correctly so they do not move. ●
When tran s

porting heavy objects, use suit-
able ropes or straps.
● Lock the seat backs in vertical position. Practical equipment
Introduction Storage compartments must only be used to
st
or

e light or small objects. WARNING
In the event of sudden braking movements or
turn s, loo

se objects may be thrown around
the vehicle interior. This could cause serious
injuries to passengers and cause the driver to
lose control of the vehicle.
● Do not transport animals or place hard,
heavy or sh
arp objects inside the vehicle in:
open storage compartments, dash panel, rear
shelf, items of clothing or bags.
● While driving, always keep object compart-
ments c
losed. WARNING
Objects falling into the driver's footwell could
prev ent

use of the pedals. This could lead the
driver to lose control of the vehicle, increas-
ing the risk of a serious accident. » 115
Technical data
Advice
Operation
Emergencies
Safety

Driving
and increase braking distance. If you drive for
a pr o
lon
ged period on salted roads without
braking then brake carefully several times to
eliminate the layer of salt on the brakes ››› .
If the
v

ehicle remains parked for considera-
ble lengths of time, is used little, or if the
brakes are not used, there may be corrosion
on the brake discs and a build up of dirt on
the brake pads. If the brakes are not used fre-
quently, or if rust has formed on the discs,
SEAT recommends cleaning the pads and
discs by braking firmly a few times at a mod-
erately high speed. Only do this without en-
dangering vehicles behind you or any other
road users ››› .
F au
lt

s in the brake system
During braking, if you notice that the vehicle
does not react as usual (that the braking dis-
tance has increased suddenly) it may be pos-
sible that there is a fault in the braking sys-
tem. This is indicated by the warning lamp
. Take the vehicle to a specialised work-
shop immediately and have the fault re-
paired. Drive at a moderate speed and be
prepared to use more pressure on the brake
pedal, and allow for longer stopping distan-
ces.
Brake servo
The brake servo only operates when the en-
gine is running and the pressure applied by
the driver on the brake pedal increases. If the brake servo does not operate or the ve-
hicle mu

st be towed, then the brake pedal
will have to be pressed with more force given
that the braking distance will be increased
when the brake servo does not operate ››› .
WARNING
New brake pads do not brake to full efficien-
cy.
● For the fir

st 320 km, new brake pads have
not y
et reached their maximum braking ca-
pacity, and need to be “run in” first. For this,
to compensate for reduced braking efficiency
the brake pedal will have to be pressed with
more force.
● To avoid losing control of the vehicle and
caus
ing serious accidents, always take great
care when driving with new brake pads.
● When running in new brake pads, always
res
pect the safety distances between you and
other vehicles and do not cause situations re-
quiring extreme braking performance. WARNING
When brakes overheat, braking is less effi-
cient and br

aking distances increase.
● When driving on slopes, brakes can be
overlo
aded and overheat quickly.
● Reduce speed or change down a gear when
faced w
ith steep and long slopes. This allows
you to use the engine braking effect and to
reduce the strain on the brake system. ●
Non-s t

andard or damaged front spoilers
could restrict the airflow to the brakes and
cause them to overheat. WARNING
Wet, frozen or salt-covered brakes take lon-
g er t o en

gage and this increases braking dis-
tances.
● Test the brakes carefully.
● Dry the brakes, free them of ice and salt by
brakin
g gently several times, when visibility,
weather, and road and traffic conditions per-
mit. WARNING
Driving without the brake servo may signifi-
cantly inc

rease the braking distance and re-
sult in a severe accident.
● Never allow the vehicle to move forwards
when the engine is
switched off.
● If the brake servo does not operate or the
vehicl
e must be towed, then the brake pedal
will have to be pressed with more force given
that the braking distance will be increased
when the brake servo does not operate. CAUTION
● Never m ak

e the brakes “slip” by pressing
the pedal gently, if it is not really necessary
to brake. Continuously pressing on the brake
pedal will heat the brakes. This could signifi-
cantly reduce braking power, increase » 141
Technical data
Advice
Operation
Emergencies
Safety

Advice
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 72. 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.
Wheel bolts
Wheel bolts must be tightened to the correct
torque ››› page 72.
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
w

ith 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
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. Note
A SEAT Service Centre should be consulted to
find out whether wheel s

or tyres of different
sizes to those originally fitted by SEAT can be
fitted, and to find out about the combinations
allowed between the front axle (axle 1) and
the rear axle (axle 2). 202

Technical features
Dimensions Fig. 181
Dimensions. Mii 3-doorMii 5-door
A/BFront and rear projection (mm)595/542
CWheelbase (mm)2,420
DLength (mm)3,557
E/FFront/rear a)
track width (mm)1,428/1,424
GWidth (mm)1,6411,645
HHeight at kerb weight (mm)1,478
Turning radius (m)approx. 9.8
a) This data will change depending on the type of wheel rim.
217
Technical data
Advice
Operation
Emergencies
Safety