2017 Seat Mii engine

The essentials
WARNING
If the vehicle is not correctly raised, it could
fa l
l off the jack causing serious injury. Please
observe the following rules to minimise the
risk of injury:
● You should only use a jack approved by
SEAT f
or your vehicle. Other jacks, even those
approved for other SEAT models, might slip
out of place.
● The ground should be firm and flat. If the
ground i
s sloped or soft then the vehicle
could slip and fall off the jack. If necessary,
support the jack on a wide solid base.
● If the ground is slippery, such as tiles,
plac
e a non-slip surface (a floor mat, for in-
stance) beneath the jack to avoid slipping.
● Only fit the jack at the prescribed jacking
points. The c
law of the jack should grip the
reinforcement nerve on the underbody
››› Fig. 56.
● You should never place a body limb such as
an arm or leg u
nder a raised vehicle that is
solely supported by the jack.
● If you have to work underneath the vehicle,
you mus
t use suitable stands additionally to
support the vehicle, there is a risk of acci-
dent!.
● Never raise the vehicle if it is tilting to one
side or the engine i
s running.
● Never start the engine when the vehicle is
raised.
The vehicle may come loose from the
jack due to the engine vibrations. Removing and fitting a wheel
Fig. 57
Changing a wheel: loosen wheel bolts
w ith the soc
k

et at the end of the wheel brace Change the wheel after loosening the wheel
bo
lts
and r

aising the vehicle with the jack.
Removing the wheel
● Slacken the wheel bolts ›››
page 38.
● Raise the vehicle ›››
page 39.
● Using the hexagonal socket in the wheel
brace ›

›› Fig. 57, unscrew the slackened
wheel bolts and place them on a clean sur-
face.
● Take off the wheel.
How to u
se the spare wheel or temporary
spare wheel
Check the direction of rotation of the tyre
›››  page 208, Tyre code. ●
Place the s
pare wheel or temporary spare
wheel into position.
● Replace the wheel bolts and tighten slight
-
ly using the hexagonal socket on the end of
the wheel brace.
● To tighten the anti-theft locking wheel bolts
use the corr
esponding adaptor.
● Lower the car with the jack.
● Tighten all of the wheel bolts clockwise
›››
. Tighten the bolts in diagonal pairs (not
in a c ir
c
le).
● Put the caps, trim or full hubcap back on
›››
page 37. WARNING
If the wheel bolts are not treated suitably or
not tight ened t

o the correct torque then this
could lead to loss of vehicle control and to a
serious accident.
● All the wheel bolts and hub threads should
be cle
an and free of oil and grease. The wheel
bolts should be easily tightened to the cor-
rect torque.
● The hexagonal socket in the wheel brace
should be u
sed for turning wheel bolts only.
Do not use it to loosen or tighten the wheel
bolts. 40

The essentials
CAUTION
● Remo v
e the snow chains to drive on roads
without snow. Otherwise they will impair
vehicle handling, damage the tyres and wear
out very quickly.
● Wheel rims may be damaged or scratched if
the chain
s come into direct contact with
them. SEAT recommends the use of covered
snow chains. Note
Snow chains are available in different sizes
acc or

ding to the vehicle type. Emergency towing of the vehi-
c
l
e
T

owing Fig. 58
Right side of the front bumper: tow-
line anc hor
ag

e screwed in. Towline anchorages
Att
ac
h the b

ar or rope to the towline ancho-
rages.
It is located with the vehicle's tools
›››  page 70.
Screw the front towline anchorage into the
screw connection ››› Fig. 58 and tighten it
with the wheel brace.
Tow rope or tow bar
When towing, the tow bar is the safest and
vehicle friendly way. You should only use a
tow rope if you do not have a tow bar. A tow rope should be slightly elastic to avoid
damag

e to both vehicles. It is advisable to
use a tow rope made of synthetic fibre or sim-
ilarly elastic material.
● Only secure the tow rope or tow bar to the
towline anc
horage or specially designed fit-
ting.
Notes for the driver of the towed vehicle
● Keep the ignition running to prevent the
steerin
g wheel from locking and also to allow
the use of the turn signals, horn, windscreen
wipers and washers.
● As the power assisted steering does not
work if
the engine is not running, you will
need more strength to steer than normally.
● The brake must be depressed much harder
as the br
ake servo does not operate. Avoid
hitting the towing vehicle.
● Note the instructions and information con-
tained in the Ins
truction Manual for the vehi-
cle to be towed.
Notes for the driver of the towing vehicle
● Accelerate gently and carefully. Avoid sud-
den manoeuvr
es.
● Brake well in advance than usual and brake
gently.
● Not

e the instructions and information con-
tained in the In s

truction Manual for the vehi-
cle to be towed. 42

The essentials
Driving style
T o
w
ing requires some experience, especially
when using a tow rope. Both drivers should
realise how difficult it is to tow a vehicle. In-
experienced drivers should not attempt to
tow.
Do not pull too hard with the towing vehicle
and take care to avoid jerking the tow rope.
When towing on an unpaved road, there is al-
ways a risk of overloading and damaging the
anchorage points.
Switch on the ignition so that the turn sig-
nals, windscreen wipers and windscreen
washer can work. Ensure that the steering
wheel is unlocked and moves freely.
Place the gear lever in neutral on vehicles
with a manual gearbox. With an automatic
gearbox, place the lever in N.
To brake, press the brake pedal firmly. The
brake servo does not work when the engine
is switched off.
The power steering only works when the igni-
tion is switched on and the vehicle is moving,
provided that the battery is sufficiently charg-
ed. Otherwise, it will need more force.
Ensure that the tow rope remains taut at all
times. ››› in Instructions for tow-starting on
page 76
››› page 75 Tow-starting
In general, the vehicle should not be started
by
t

owing. Jump-starting is much more pref-
erable ››› page 43.
For technical reasons, the following vehicles
can not be tow started:
● Vehicles with an automatic gearbox.
● If the vehicle battery is flat, it is possible
that the en

gine control unit does not operate
correctly.
However, if your vehicle must absolutely be
tow-started (manual gearbox):
● Put it into second or third gear.
● Keep the clutch pressed down.
● Switch on the ignition and the hazard warn-
ing lights.
● Rel

ease the clutch when both vehicles are
movin
g.
● As soon as the engine starts, press the
clutc
h and move the gear lever into neutral.
This helps to prevent a collision with the tow-
ing vehicle. How to jump start
Jump lea
ds If the engine fails to start because of a dis-
ch
ar

ged battery, the battery of another vehi-
cle can be used to start the engine. Before
starting, check the magic eye on the battery
›››  page 196.
For starting assistance, jump lead cables con-
forming to the standard DIN 72553 are re-
quired (see the cable manufacturer instruc-
tions). The cable section in vehicles with pet-
rol engine must be at least 25 mm 2
. WARNING
Incorrect use of jump leads and incorrectly
jump st ar

ting could cause the battery to ex-
plode resulting in serious injury. Please ob-
serve the following rules to minimise the risk
of a battery explosion:
● The battery providing current must have
the same v
oltage (12V) and approximately
the same capacity (see markings on battery)
as the flat battery.
● Never charge a frozen or recently thawed
batter
y. A flat battery can also freeze at tem-
peratures close to 0°C (+32°F).
● If a battery is frozen and/or has been frozen
then it mus
t be replaced.
● A highly explosive mixture of gases is re-
lea
sed when the battery is being charged. Al-
ways keep lit cigarettes, flames, sparks and » 43

The essentials
fire far from the battery. Never use a mobile
tel
ephone when c
onnecting and removing the
jump leads.
● Charge the battery only in well ventilated
area
s given that when the battery is charged
by outside assistance, it creates a mix of
highly explosive gases.
● Jump leads should never enter into contact
with mov
ing parts in the engine compart-
ment.
● Never switch the positive and negative
pole
s or connect the jump leads incorrectly.
● Note the instruction manual provided by
the manufact
urer of the jump leads. CAUTION
To avoid considerable damage to the vehicle
electric a

l system, note the following careful-
ly:
● If the jump leads are incorrectly connected,
this c
ould result in a short circuit.
● The vehicles must not touch each other,
otherwi
se electricity could flow as soon as
the positive terminals are connected. How to jump start: description
Fig. 59
Diagram of connections for vehicles
w ithout


Start Stop system Fig. 60
Diagram of connections for vehicles
w ith
St

art Stop system Jump lead terminal connections
Swit
c

h off the ignition of both vehicles
››› .
1. Connect one end of the
re
d
jump lead to
the positive + terminal of the vehicle
w ith the fl
at
battery A
› ››
Fig. 59
.
C
onnect the other end of the red jump
lead to the positive terminal + in the
v ehic
l

e providing assistance B .
F or

vehicles without Start-Stop system:
connect one end of the black jump lead
to the negative terminal – of the vehi-
c l
e pr

oviding the current B
› ››
Fig. 59
.
F
or vehicles with Start-Stop system: con-
nect one end of the black jump lead X to a suitable ground terminal, to a solid
piec
e of
met

al in the engine block, or to
the engine block itself ››› Fig. 60.
Connect the other end of the black jump
lead X to a solid metal component bol-
t ed t
o the en

gine block or to the engine
block itself of the vehicle with the flat
battery. Do not connect it to a point near
the battery A .
P o
s

ition the leads in such a way that
they cannot come into contact with any
moving parts in the engine compart-
ment.
Starting Start the engine of the vehicle with the
boosting battery and let it run at idling
speed.
2.
3.
4a.
4b.
5.
6.
7.
44

The essentials
Start the engine of the vehicle with the
fl at
b
attery and wait for 2 or 3 minutes
until the engine is running.
Removing the jump leads Before you remove the jump leads,
switch off the dipped beam headlights if
they are switched on.
Turn on the heater blower and heated
rear window in the vehicle with the flat
battery. This helps minimise voltage
peaks which are generated when the
leads are disconnected.
When the engine is running, disconnect
the leads in reverse order to the details
given above.
Make sure the battery clamps have sufficient
metal-to-metal contact with the battery termi-
nals.
If the engine fails to start after about 10 sec-
onds, switch off the starter and try again after
about 1 minute. WARNING
● Ple a

se note the safety warnings referring to
working in the engine compartment
›››  page 187.
● The battery providing assistance must have
the same v
oltage as the flat battery (12V) and
approximately the same capacity (see imprint 8.
9.
10.
11.
on battery). Failure to comply could result in
an exp
lo

sion.
● Never use jump leads when one of the bat-
teries
is frozen. Danger of explosion! Even af-
ter the battery has thawed, battery acid could
leak and cause chemical burns. If a battery
freezes, it should be replaced.
● Keep sparks, flames and lighted cigarettes
awa
y from batteries, danger of explosion.
Failure to comply could result in an explo-
sion.
● Observe the instructions provided by the
manufact
urer of the jump leads.
● Do not connect the negative cable from the
other vehic
le directly to the negative terminal
of the flat battery. The gas emitted from the
battery could be ignited by sparks. Danger of
explosion.
● Never attach the negative cable to fuel sys-
tem component
s or the brake lines in the oth-
er vehicle.
● The non-insulated parts of the battery
clamp
s must not be allowed to touch. The
jump lead attached to the positive battery
terminal must not touch metal parts of the ve-
hicle, this can cause a short circuit.
● Position the leads in such a way that they
cannot c
ome into contact with any moving
parts in the engine compartment.
● Do not lean on the batteries. This could re-
sult
in chemical burns. Note
The vehicles must not touch each other, oth-
erw i

se electricity could flow as soon as the
positive terminals are connected. Changing the wiper blades
Wind s

creen wipers service position Fig. 61
Wipers in service position. The wiper arms can be raised when the wip-
er
s
ar

e in service position ›››
Fig. 61.
● Close the bonnet ›››

 page 187.
● Switch the ignition on and off.
● Press the windscreen wiper lever down-
ward
s briefly ›››
Fig. 32 4 .
» 45

Airbag system
WARNING
● The seat belt
s and airbags can only provide
maximum protection if the occupants are
seated correctly ››› page 48.
● If a fault has occurred in the airbag system,
have the sy
stem checked immediately by a
specialised workshop. Otherwise, during a
frontal collision the system might not trigger
correctly or may fail to trigger at all. Airbag activation
The airbags deploy extremely rapidly, within
thou
s
andths

of a second, to provide addi-
tional protection in the event of an accident.
A fine dust may develop when the airbag de-
ploys. This is normal and it is not an indica-
tion of fire in the vehicle.
The airbag system is only ready to function
when the ignition is on.
In special accidents instances, several air-
bags may activate at the same time.
In the event of minor head-on and side colli-
sions, rear-end collisions, overturning or roll-
over of the vehicle, airbags do not activate.
Activation factors
The conditions that lead to the airbag system
activating in each situation cannot be gener-
alised. Some factors play an important role,
such as the properties of the object the vehi- cle hits (hard/soft), angle of impact, vehicle
speed, etc

.
Deceleration trajectory is key for airbag acti-
vation.
The control unit analyses the collision trajec-
tory and activates the respective restraint
system.
If the deceleration rate is below the prede-
fined reference value in the control unit the
airbags will not be triggered, even though
the accident may cause extensive damage to
the car.
The following airbags are triggered in seri-
ous head-on collisions ● Driver airbag.
● Front passenger front airbag
The fol
lowing airbags are triggered in seri-
ous side-on collisions
● Front side airbag on the side of the acci-
dent.
● Re

ar side airbag on the side of the acci-
dent.
In an acc

ident with airbag activation:
● the interior lights switch on (if the interior
light swit
ch is in the courtesy light position);
● the hazard warning lights switch on;
● all doors are unlocked; ●
the fuel s
upply to the engine is cut.
Airbag safety instructions Front airb
ags Read the additional information carefully
›› ›

 page 14. WARNING
The airbag is deployed at high speed in frac-
tions of

a second.
● Always keep the deployment areas of the
front airb
ags vacant.
● Never secure objects to the covers or in the
deployment
area of the airbag modules, e.g.
drink holders or phone supports.
● The deployment space between the front
pas
sengers and the airbags must not in any
case be occupied by other passenger, pets
and objects.
● Never fix any object to the windscreen
above the fr
ont airbag on the front passenger
side.
● Do not alter, cover or stick anything to the
steerin
g wheel hub or the surface of the air-
bag module on the passenger side of the
dash panel. » 61
Technical data
Advice
Operation
Emergencies
Safety

Emergencies
case it is lost, another adapter can be or-
der ed u
s
ing 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-
ten anc

e. If required, it should be greased us-
ing universal type grease. Changing a wheel
Intr oduction Read the additional information carefully
› ›
›

 page 36
Some vehicle versions and models do not
have a factory-fitted jack or box spanner. In
this case, we recommend consulting a Speci-
alised workshop to change the wheel. 3 4
5
6
7 You should only change the wheels yourself if
the
v
ehic

le is parked in a safe place, you are
familiar with the procedure and safety stand-
ards and you have all the necessary tools!
Otherwise, you should seek professional as-
sistance. WARNING
Changing a wheel can be dangerous, espe-
ci a

lly on the hard shoulder. Please observe
the following rules to minimise the risk of in-
jury:
● Stop the vehicle safely as soon as possible.
Park at
a safe distance from surrounding traf-
fic to change a wheel.
● When changing a wheel, keep all passen-
gers, and p
articularly children, a safe dis-
tance away from the work area.
● Turn on the hazard warning lights to warn
other roa
d users.
● Ensure the ground on which you park is flat
and solid. If nec
essary, support the jack on a
wide solid base.
● If you are changing a wheel yourself, you
should be f
amiliar with the required proce-
dure. Otherwise, you should seek professio-
nal assistance.
● Only use suitable tools that are not dam-
aged when ch
anging a wheel.
● Always stop the engine, apply the hand-
brake l
ever firmly and place the selector lever
in position N, or engage a gear for a manual gearbox to reduce the risk of the vehicle mov-
ing ac
c

identally.
● Have the tightening torque of the wheel
bolts
checked as soon as possible with a reli-
able torque wrench. WARNING
If the wheel trims are not appropriate or not
fitt ed c orr

ectly, they could cause major acci-
dents or damage.
● Incorrectly mounted wheel trims may come
off whil
e driving and endanger other road
users.
● Damaged trims must never be mounted on
the wheels.
● Alw

ays ensure that the brake ventilation
and coolin
g is not cut off or blocked. This is
also valid if hubcaps are fitted later. If there
is not enough air, you may require signifi-
cantly longer braking distances. CAUTION
Remove and remount wheel trims taking care
to av oid d

amage to the vehicle. Tyre repair
TM S (T

yre Mobility System)* Read the additional information carefully
› ›
›

 page 35
72

Self-help
The Anti-puncture kit* (Tyre Mobility System)
w i
l
l reliably seal punctures caused by the
penetration of a foreign body of up to about
4 mm in diameter. Do not remove foreign ob-
jects, e.g. screws or nails, from the tyre.
After inserting the sealant residue in the tyre,
you must again check the tyre pressure about
10 minutes after starting the engine.
You should only use the tyre mobility set if
the vehicle is parked in a safe place, you are
familiar with the procedure and you have the
necessary tyre mobility set! Otherwise, you
should seek professional assistance.
Do not use the tyre sealant in the following
cases:
● If the wheel rim has been damaged.
● In outside temperatures below -20°C (-4°F).
● In the event of cuts or perforations in the
tyre gr
eater than 4 mm.
● If you have been driving with very low pres-
sure or a c
ompletely flat tyre.
● If the sealant bottle has passed its use by
date. WARNING
Using the tyre mobility system can be dan-
ger ou

s, especially when filling the tyre at the
roadside. Please observe the following rules
to minimise the risk of injury: ●
Stop the v

ehicle safely as soon as possible.
Park it at a safe distance from surrounding
traffic to fill the tyre.
● Ensure the ground on which you park is flat
and solid.
● Al

l passengers and particularly children
must
keep a safe distance from the work area.
● Turn on the hazard warning lights to warn
other roa
d users.
● Use the tyre mobility system only if you are
famili
ar with the necessary procedures. Oth-
erwise, you should seek professional assis-
tance.
● The tyre mobility set is intended for tempo-
rary
emergency use only until you can reach
the nearest specialised workshop.
● Replace the repaired tyre with the tyre mo-
bility
set as soon as possible.
● The sealant is a health hazard and must be
cle
aned immediately if it comes into contact
with the skin.
● Always keep the tyre mobility set out of the
reac
h of small children.
● Never use an equivalent jack, even if it has
been appro
ved for your vehicle.
● Always stop the engine, apply the hand-
brake l
ever firmly and engage gear if using a
manual gearbox, in order to reduce the risk of
vehicle involuntary movement. WARNING
A tyre filled with sealant does not have the
same per f

ormance properties as a conven-
tional tyre.
● Never drive faster than 80 km/h (50 mph).
● Avoid heavy acceleration, hard braking and
fas
t cornering.
● Drive for only 10 minutes at a maximum
speed of 80
km/h (50 mph) and then check
the tyre. For the sake of the environment
Dispose of used or expired sealant observing
any l

egal requirements. Note
● A new bottle of se

alant can be purchased at
SEAT dealerships.
● Take into account the separate instruction
manual
of the tyre mobility set* manufactur-
er. 73
Technical data
Advice
Operation
Emergencies
Safety