technical data Seat Mii 2017 Service Manual

Transport and practical equipment
CAUTION
At very high or very low temperatures the
smar tphone might
not operate properly, or
the actual device could get damaged.
● Take your smart phone with you when you
get out
of the vehicle to protect it from very
high or very low temperatures, and from in-
tense solar radiation. CAUTION
Humidity can damage the electrical contacts
for the sm ar

tphone on the instrument panel.
● Do not wet the smartphone’s housing when
cle
aning it. Use only a dry cloth. Note
SEAT recommends that you always take your
smar t

phone with you when you get out of
the vehicle to avoid possible thefts. Luggage compartment
Intr oduction Always transport heavy loads in the luggage
c
omp
ar

tment and place the seat backs in a
vertical position. Never overload the vehicle.
Both the carrying capacity as well as the dis-
tribution of the load in the vehicle have ef- fects on the driving behaviour and braking
ability

››› .
WARNING
When the vehicle is not in use or being
wat c

hed, always lock the doors and the rear
lid to reduce the risk of serious injury or
death.
● Do not leave children unwatched, especial-
ly when the boot i
s open. Children could
climb into the luggage compartment, close
the rear lid from inside and be unable to es-
cape themselves. This could lead to serious
injury or death.
● Never allow children to play in or around
the vehic
le.
● Never transport people in the luggage com-
partment
. WARNING
Unsecured or incorrectly secured objects can
cau se seriou

s injury in case of a sudden ma-
noeuvring or breaking or in case of an acci-
dent. This is especially true when objects are
struck by a detonating airbag and fired
through the vehicle interior. To reduce the
risks, please note the following:
● Secure all objects in the vehicle. Always
plac
e equipment and heavy objects in the
boot.
● Always secure objects to the fastening
rings
with suitable rope or straps to prevent
them from being thrown around the interior and moving to the airbag deployment area in
the event
of

sudden movements or accidents.
● While driving, always keep object compart-
ments c
losed.
● Do not place hard, heavy or sharp objects
inside the
vehicle interior, in open storage
compartments, the rear shelf or on the dash
panel.
● Remove hard, heavy and sharp objects from
clothes
and pockets inside the vehicle and
store securely. WARNING
The transport of heavy object changes vehi-
cl e h

andling and increases braking distance.
Heavy loads that have not been stored or se-
cured correctly could cause loss of control
and result in serious injury.
● Vehicle handling changes when transport-
ing heavy
objects due to a change in the cen-
tre of gravity.
● Distribute the load as uniformly and as low
down on the v
ehicle as possible.
● Store heavy objects in the luggage com-
partment
as far from the rear axle as possi-
ble. CAUTION
Hard objects on the rear shelf could chafe
again s

t the wires of the heating element in
the heated rear window and cause damage. » 123
Technical data
Advice
Operation
Emergencies
Safety

Transport and practical equipment
Luggage compartment shelf* Fig. 137
In the luggage compartment: remov-
in g and in
s
talling the rear shelf You may put light items of clothing on the
r
e
ar shelf

. Check that the rear view is not limi-
ted.
Removing the shelf
● Unhook the loops ›››
Fig. 137 B from
hou s
in
gs A .
● Extract the shelf from its housing C up-
w ar
d

s and then pull it out. WARNING
Unsecured or incorrectly secured objects or
anima l

s on the rear shelf could cause serious
injuries in case of a sudden manoeuvre, sud-
den braking or an accident.
● Do not leave hard, heavy or sharp objects
(loose or in bag
s) on the rear shelf. ●
Never tr an

sport animals on the rear shelf.
● Never drive with the rear shelf raised. Al-
way
s lower it or remove it before the journey. CAUTION
To prevent the rear shelf from being dam-
ag ed:
● Alw

ays check that the side supports are
firmly en
gaged.
● Regulate the height of the load in the lug-
gage c
ompartment to ensure the rear shelf
does not press down on the load with the rear
lid closed. Luggage compartment variable floor
Fig. 138
A: open the boot variable floor. B:
r ai
sed boot

variable floor. » 125
Technical data
Advice
Operation
Emergencies
Safety

Transport and practical equipment
Retaining hooks Fig. 140
In the luggage compartment: retain-
in g hook
s There may be hooks in the upper left and
right
p
ar
t of the luggage compartment. WARNING
Never use these hooks to secure objects. In
ca se of

sudden braking or an accident, they
could rupture. CAUTION
The hooks can support a maximum of 2.5 kg
eac h. Roof carrier
Intr oduction The vehicle roof has been designed to opti-
mise aer
ody

namics. For this reason, conven-
tional roof carrier systems cannot be secured
to the water drains.
Given that the water drains have been incor-
porated into the roof for aerodynamic rea-
sons, only the SEAT approved basic supports
and roof carrier systems can be used.
When the roof carrier system should be re-
moved:
● When they are not used.
● When the vehicle is being washed in a car
wa sh.
● When the

vehicle height exceeds the maxi-
mum height, for ex
ample, in some garages. WARNING
The risk of an accident is increased by trans-
portin g he

avy or bulky loads on the roof,
which affects the car's handling by shifting
the centre of gravity and increasing suscepti-
bility to cross winds.
● Always secure loads correctly with suitable
and undam
aged attachment rope or straps.
● Large, heavy, wide and flat loads negatively
affect the
vehicle aerodynamics, centre of
gravity and handling. ●
Av oid bru

sque manoeuvres and sudden
braking.
● Adjust your speed and driving style to visi-
bility
, road, traffic and weather conditions. CAUTION
● Alw a

ys remove the roof carrier system from
the roof before entering a car wash.
● The height of your vehicle is changed by
the inst
allation of the roof carrier and the
load secured on it. Compare the vehicle
height with the passage height, for example
in underground car parks or for garage doors.
● The roof antenna and the range of the rear
lid should not
be affected by the roof carrier
system or the load being transported.
● Take extra care not to let the hatch strike
the roof lo
ad when opening. For the sake of the environment
The vehicle uses more fuel when the roof car-
rier sys t

em is fitted. 127
Technical data
Advice
Operation
Emergencies
Safety

Air conditioning
support, the roof carrier system and the load
bein g tr
an
sported ››› .
A lw
a
ys check the weight of the base support,
the roof carrier system and the weight of the
load to be transported and, if necessary,
weigh them. Never exceed the maximum au-
thorised roof load.
If you are using a roof carrier with a lower
weight rating, you cannot transport the maxi-
mum roof load. Do not exceed the maximum
weight limit for the roof carrier given in the
fitting instructions.
Distributing a load
Uniformly distribute loads and secure them
correctly ››› .
Chec k
att

achments
After fitting the base supports and the roof
carrier system, always check the attachments
after a short trip and at regular intervals. WARNING
Exceeding the maximum authorised roof load
can r e

sult in accidents and/or vehicle dam-
age.
● Never surpass the maximum authorised
weight f
or the roof, the maximum authorised
weight on the axles and the total maximum
authorised weight of the vehicle. ●
Never e x

ceed the capacity of the roof carri-
er system even if this is less than the maxi-
mum authorised roof load.
● Secure heavy items as far forward as possi-
ble and di
stribute the vehicle load uniformly. WARNING
Loose and incorrectly secured loads can fall
fr om the r oof

carrier system causing acci-
dents and injury.
● Always use suitable ropes and straps in
good condition.
● A

lways secure loads correctly. Air conditioning
He atin
g,

ventilation and air
conditioning
Introduction Read the additional information carefully
›› ›

 page 28
One of the following systems can be installed
in the vehicle:
● Heating and fresh air system
● Manual air conditioning
● Climatronic
The heatin g and fr

esh air system heats and
ventilates the interior. The heating and fresh
air system cannot cool.
The manual air conditioning and the Clima-
tronic cool and dehumidify the air. They oper-
ate most effectively with the windows and
the sunroof closed. If a great deal of heat ac-
cumulates in the interior, ventilating it can
accelerate the cooling process.
Display of active functions
The LEDs that light up on the rotary controls
on the buttons indicate that the function in
question is activated. »
129
Technical data
Advice
Operation
Emergencies
Safety

Air conditioning
Air vents Fig. 143
On the dash panel: air vents To achieve sufficient heating power, cooling
and
v
enti
lation in the interior, the vents
should be left open.
Key to the Fig. 143:
Adjustable air vents: the vent slats can
be used to open and close the vents and
to adjust air direction. For the air to reach
1 the windows as best as possible, open
the c
orr
e
sponding vent and turn it to the
defrost/demist position, where it will en-
gage.
Non-adjustable air vents
There are more vents in the footwell areas
and at the back of the interior. 2 CAUTION
Never place food, medicines or other temper-
atur e-

sensitive objects close to the air vents.
Food, medicines and other objects sensitive
to heat or cold may be damaged or made un-
suitable for use by the air coming from the
vents. 131
Technical data
Advice
Operation
Emergencies
Safety

Driving
Maximum cooling power or heating power in
the c a
se of
Climatronic
When driving, the maximum cooling power or
heating power can be adjusted by pressing
the 1 or
2
› ››
Fig. 144
b
utton repeatedly.
The temperature is not regulated.
● Maximum cooling power: adjus
t the tem-
perature below +16°C (+60°F). The display
then shows LO.
● Maximum heating power: adjus
t the tem-
perature above +29°C (+84°F). The display
then shows HI.
Dust and pollen filter
The dust and pollen filter should be changed
regularly in order to maintain air conditioner
performance.
If the vehicle is used frequently in areas
where the outside air is highly polluted, it
may be necessary to change the filter before
the next scheduled service.
Water under the vehicle
If the humidity and temperature outside the
vehicle are high, condensation can drip off
the evaporator in the cooling system and
form a small pool underneath the vehicle.
This is normal and does not indicate a leak! Driving
St op
pin

g and starting the en-
gine
Switching on the ignition and starting
the engine Fig. 145
Vehicle key positions Read the additional information carefully
› ›
›

 page 20
Immobiliser display
When an invalid key is used or in the event of
a system fault,  is displayed on the instru-
ment panel. The engine cannot be started.
Pushing or towing
For technical reasons, the vehicle must not
be push- or tow-started. Jump starting is pref-
erable. Key not authorised for the vehicle
If a key

which is not authorised for this vehi-
cle is inserted in the ignition lock, it can be
removed as follows:
● Automatic gearbox : the key c
annot be re-
moved from the ignition lock. Press and re-
lease the selector lever locking button. Key
can be removed from the vehicle.
● Manual gearbox: Remov
e the key from the
ignition. WARNING
Switching off the engine while driving makes
st op

ping the vehicle difficult. As a conse-
quence you may lose control of the vehicle
and there is a risk of serious accident.
● The assisted braking and steering systems,
the airbag sys
tem, seat belts and certain
safety equipment are only active while the
engine is running.
● The engine should only be switched off
when the vehic
le is at a standstill. WARNING
While the engine is running or starting it
cou l

d help reduce the risk of serious injury.
● Never start or leave the engine running in
poorly v
entilated or closed spaces. Exhaust
gas contains carbon monoxide, a toxic, col-
ourless and odourless gas. Carbon monoxide
can cause people to lose consciousness. It
can also cause death. » 133
Technical data
Advice
Operation
Emergencies
Safety

Driving
Engaging the steering wheel lock
In v
ehic
les with automatic gearbox, the igni-
tion key can only be removed when the selec-
tor lever is in position N.
– Remove the key from the ignition in posi-
tion 1
› ››
Fig. 145
›
›› .
– Turn the steering wheel until you hear it en-
gag
e.
P

ossible vehicle theft is prevented with the
steering lock engaged. WARNING
Never switch off the engine while the vehicle
is mo

ving. You may lose control of the vehicle
and there is a risk of serious accident.
● The airbags and belt tensioners do not
work when the ignition i
s switched off.
● The brake servo does not work with the en-
gine off. T
o stop, the brake pedal must be
pressed with more force.
● As the power steering does not work if the
engine is
not running, you will need more
strength to steer than normally.
● If the key is removed from the ignition, the
steerin
g may lock and it will not be possible
to steer the vehicle. CAUTION
If the engine has been driven at high speed
for a pr o

longed period of time, it may over-
heat when turned off. To avoid engine dam- age, allow the engine to run for approximate-
ly 2 minut
e

s in neutral before switching it off. Note
After stopping the engine, the engine com-
p ar tment

fan may continue running for a few
minutes, even when the ignition has been
switched off or the key removed. The radiator
fan is automatically switched off. Electronic immobiliser
The gear lock prevents the engine from being
s
t
ar

ted with an unauthorised key and the ve-
hicle being moved.
The vehicle key has a built-in chip. It auto-
matically deactivates the electronic immobil-
iser when the key is inserted into the ignition
lock.
The electronic immobilizer will be activated
again automatically as soon as you remove
the key from the ignition lock.
For this reason, the vehicle can only be used
with a genuine SEAT key with the correct
code. Coded keys can be obtained from SEAT
dealerships ››› page 92.
If an unauthorised key is used, the signal 
appears on the instrument panel display. The
vehicle cannot be started in this case Note
The correct operation of the vehicle is only
guarant eed when origin

al SEAT keys are
used. Braking and parking
Introduction The assisted brake systems are the electron-
ic di

stribution of braking force (EBV), the an-
ti-lock brake system (ABS), the brake assist
system (BAS), the electronic differential lock
(EDL), traction control (TC)*, the traction con-
trol system (ASR) and the electronic stability
control (ESC*). WARNING
Driving with worn brake pads or a faulty
brak e sy

stem may lead to serious accident.
● If you believe the brake pads to be worn or
the brake sy
stem to be faulty, immediately
refer to a specialised workshop to check the
brake pads and replace the worn ones. WARNING
Careless parking can cause serious injury.
● Never remove the key from the ignition if
the v ehic

le is in motion. The steering lock » 135
Technical data
Advice
Operation
Emergencies
Safety

Driving
Flashes
Traction Control*
regulator operating.Take your foot off the accelera-
tor. Adjust your driving style to
the road conditions. Several warning and control lamps light up
for a f
ew sec

onds when the ignition is switch-
ed on, signalling that the function is being
verified. They will switch off after a few sec-
onds. WARNING
If the warning lamps are ignored, the vehicle
ma y

stall in traffic, or may cause accidents
and severe injuries.
● Never ignore the warning lamps.
● Stop the vehicle safely as soon as possible. WARNING
Driving with brakes in bad condition could re-
su lt

in a serious accident.
● If the brake warning lamp  does not
go
out, or if it lights up when driving, the brake
fluid level in the reservoir is too low or there
is a fault in the brake system. Obtain profes-
sional assistance immediately ››› page 194,
Checking the brake fluid level.
● If the brake warning lamp  lights up t
o-
gether with the ABS warning lamp , the
regulation function of the ABS could be mal-
functioning. As a result, the rear wheels can
lock relatively easily when braking. If the rear wheels lock this could result in loss of vehicle
contr
o

l! If possible, reduce your speed and
drive carefully to a specialised workshop
close by to check the brake system. During
the following journey, avoid sudden braking
and manoeuvres.
● If the ABS warning lamp  does not
go out
or if it lights while driving, the ABS is mal-
functioning. The vehicle can only be stopped
using normal braking without ABS. The pro-
tection provided by the ABS is not available.
Visit a specialised workshop as soon as pos-
sible. CAUTION
Failure to heed the warning lamps when they
appe ar m

ay result in faults in the vehicle. Brake assist systems
The assisted braking systems ESC*, ABS,
EB
V
, B

AS, ASR, TC and EDL only operate when
the ignition is switched on. They contribute
significantly to increasing active safety.
Electronic Stability Control (ESC)*
ESC* reduces the risk of skidding and increa-
ses the vehicle stability by braking individual
wheels under specific driving conditions.
ESC* detects critical handling situations,
such as understeer, oversteer and wheelspin
on the driven wheels. The system stabilises the vehicle by braking individual wheels or
by r

educing the engine torque.
The ESC* has limits. It is important to realise
that ESC* is also subject to the laws of phys-
ics. ESC* will not be able to deal with all sit-
uations with which drivers may be faced. For
example, if the road surface changes sudden-
ly then ESC* will not be useful in all cases. If
the vehicle suddenly enters a section cov-
ered by water, mud or snow then ESC* will
not provide assistance in the same way as on
dry ground. If the vehicle loses its grip on the
ground and moves on a film of water (“aqua-
planing”), the ESC* will not be able to help
the driver control the vehicle due to the loss
of adherence with the road surface prevent-
ing braking and steering. If the vehicle is
driven through series of bends at high
speed, the ESC* will not always be as effec-
tive: the vehicle reaction to aggressive driv-
ing is not the same as at reduced speeds.
Adjust your speed and driving style to suit
visibility, and weather, road and traffic condi-
tions. ESC* cannot push the limits of the laws
of physics; improve the transmission availa-
ble or maintain the vehicle on the road if a
lack of driver attention creates an inevitable
situation. Otherwise, ESC* assists in main-
taining vehicle control in extreme situations
and uses the movements of the steering
made by the driver to maintain the vehicle
moving in the desired direction. If the vehicle
is driven at such a speed that it will leave the »
137
Technical data
Advice
Operation
Emergencies
Safety

Driving
●
Ev en though br
ake assist systems are ex-
tremely effective and help control the vehicle
in difficult situations, remember that the ve-
hicle stability depends on tyre grip.
● When accelerating on a slippery surface,
for ex
ample on ice or snow, press the acceler-
ator carefully. The wheels can still slip even
with brake assist systems resulting in loss of
vehicle control. WARNING
The effectiveness of the ESC* can be consid-
er ab ly

reduced if other components and sys-
tems affecting driving dynamics are not main-
tained or are not functioning correctly. This
includes, among others, brakes, tyres and
other systems already mentioned.
● Remember that changing and fitting other
components
to the vehicle can affect opera-
tion of the ABS, BAS, ASR TC, EDL and ESC*.
● Changes to the vehicle suspension or using
unap
proved wheel/tyre combinations can af-
fect operation of the ABS, BAS, ASR, TC, EDL
and ESC* and their effectiveness.
● Likewise, the effectiveness of ESC* de-
pends on the u
se of suitable tyres
››› page 200. Note
● To en s

ure that the ESC*, ASR and TC work
properly, all four wheels must be fitted with
identical tyres. Any differences in the rolling
radius of the tyres can cause the system to reduce engine power when this is not de-
sir
ed.
● If

a malfunction should occur in the ABS,
the ESC*, ASR, T
C and EDL will also be affec-
ted.
● Noises may be heard while any of the
above sy
stems are operating. Handbrake
Fig. 146
Between the front seats: handbrake. Using the handbrake
●
Pull firmly in an upwards direction on the
h andbr
ak

e lever while pressing the button.
● The handbrake is applied when the control
lamp  lights up on the in
strument panel
››› page 136 when the ignition is switched
on. Releasing the handbrake
● Pull gently in an upwards direction on the
handbrak
e lever and press the lock button
››› Fig. 146 (arrow).
● Move the handbrake lever downwards
keeping the loc
k button pressed. WARNING
The incorrect use of the handbrake may result
in a serious ac

cident.
● Never use the handbrake to brake the vehi-
cle e
xcept in an emergency. The braking dis-
tance is considerably longer, because braking
is only applied to the rear wheels. Always use
the foot brake.
● Never drive with the handbrake gently ap-
plied. Thi
s can overheat the brake, affecting
the brakes system. This also causes prema-
ture wear on the rear brake pads.
● Never accelerate from the engine compart-
ment with the en
gine running and a gear en-
gaged. The vehicle could move, even if the
handbrake is applied. Note
If the vehicle moves at a speed superior to
6 km/h (4 mph) with the h andbr

ake applied,
an audible warning is sounded. 139
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