ECU Seat Mii 2015 Owner's Guide

Operation
sockets in order to charge the vehicle's
batt
er
y.
● Only use accessories with approved elec-
tromagnetic
compatibility according to cur-
rent regulations.
● To avoid damage due to voltage variations,
switc
h off all devices connected to the 12 V
socket before switching the ignition on or off
and before starting the engine.
● Never connect an appliance to the 12 volt
power soc
ket that consumes more than the
power indicated in watts. Exceeding the max-
imum power absorption could damage the ve-
hicle's electrical system. For the sake of the environment
Do not leave the engine running when the ve-
hicl e i

s at a standstill. Note
● Us in

g devices with the engine stopped and
the ignition switched on will drain the bat-
tery.
● Unshielded equipment can cause interfer-
ence on the ra
dio equipment and the vehi-
cle's electrical system.
● Interference can occur on the radio's AM
wave
band if electrical appliances are used
near the aerial. Luggage compartment
Intr oduction Always transport heavy loads in the luggage
comp
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
v

ehicle 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.118

Operation
Luggage compartment shelf* Fig. 133
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. 133 B from
hou s
in
gs A .
● Extract the cover from its slot, in its rest po-
s ition and p
u

ll outwards. 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. 134
A: open the boot variable floor. B:
r ai
sed boot

variable floor. 120

Transport and practical equipment
Fig. 135
C: extend the boot downward. D: ex-
t end the boot
f
orward. Raise and lower the boot floor
● To r aise the floor, raise handle
› ›

› Fig. 134 1 in the direction of the arrow
and p u
l
l from the floor all the way up
››› Fig. 134 B.
● To lower it , guide the floor down
ward.
Extend the boot downward
● Raise the boot floor and push it downward
in the rail
›››
Fig. 135 C (arrows)
● Place the variable floor over the floor lining.
● If necessary, fold the backrest of the rear
seat f
orward ›››
page 119. Extending the luggage compartment forward
● Disassemble the luggage compartment tray
›››
page 120.
● Disassemble the rear headrests ›››
page 47.
● Fold the backrest of the rear seat forward
›››
page 119.
● If necessary, expand the boot downward. CAUTION
Do not let the luggage compartment floor fall
when clo s

ing it. Always carefully guide it
downward in a controlled manner. Otherwise,
the lining and the floor of the boot could be
damaged. Class N1 (commercial) vehicles
For safe vehicle operation, the electrical sys-
t
em mu
s

t work perfectly. Special attention
should be paid so it is not damaged during
adjustment, loading and unloading of trans-
ported objects.
Fastening rings* In the front part of the luggage compartment,
ther
e m
a

y be fastening rings to secure the
luggage.
In order to use the fastening rings, they must
be lifted beforehand. WARNING
If unsuitable or damaged belts or retaining
str ap

s are used, they may break in the event
of braking or an accident. Objects could then
be launched across the passenger compart-
ment and cause serious or fatal injuries.
● It is important to always use belts or retain-
ing str
aps that are suitable and in a good
condition.
● Belts and retaining straps should be se-
curely
fastened to the fastening rings.
● Objects in the luggage compartment that
are un
secured could move suddenly and mod-
ify the handling of the vehicle.
● Small light objects should also be fixed in
plac
e.
● The maximum tensile load of the fastening
ring for sec
uring objects should never be ex-
ceeded.
● A child seat should never be secured with
the fas
tening rings. Note
● The max imum t

ensile load that the fasten-
ing rings can support is 3.5 kN.
● Belts and securing systems for the appro-
priate lo
ad can be obtained from specialised
dealerships. SEAT recommends visiting a
SEAT dealership for this. 121
Technical data
Advice
Operation
Emergencies
Safety

Operation
Retaining hooks Fig. 136
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.122

Transport and practical equipment
Fastening the base supports and the
r oof
c
arrier system Fig. 137
Attachment points for the basic sup-
por ts
and the r

oof carrier system in two-door
vehicles. Fig. 138
Attachment points for the basic sup-
por ts and the r

oof carrier system in four-door
vehicles. The mounts are the basis of a complete roof
c
arrier sy s

tem. Special fixtures must be add-
ed in order to safely transport luggage, bicy- cles, skis, surf boards or boats on the roof.
The suitab

le accessories can be acquired at
SEAT dealerships.
Securing the base supports and roof carrier
system
The roof carrier system must always be instal-
led exactly according to the instructions pro-
vided.
Two-door vehicles: the holes and marks indi-
cating the fitting points for base front sup-
ports are in the lower half of the roof struts
››› Fig. 137 (enlarged left image). The holes
and marks are only seen with the door open.
The fitting marks for base rear supports are in
the upper half of the windows ››› Fig. 137 (en-
larged right image).
Four-door vehicles: the holes or marks indi-
cating the fitting points for base supports are
in the lower half of the roof struts and can on-
ly be seen with the door open ››› Fig. 138.
The base support should only be fitted to the
points indicated in the diagram . WARNING
If the base supports and the roof carrier sys-
tem ar e inc

orrectly fitted or used in an unsuit-
able manner, the entire system could break
free causing accident and injury.
● Always take the manufacturer assembly in-
structions
into account. ●
Only u

se base supports and roof carrier
systems that are not damaged and are cor-
rectly fitted.
● The base support should only be fitted to
the points indic
ated in the diagram
››› Fig. 137.
● Secure the base supports and roof carrier
syst
em correctly.
● Check the screws and attachments before
driving and af
ter a short distance. During
each long journey, check the attachments
during every break.
● Always fit the roof carrier system correctly
for wheels, sk
is and surfboards, etc.
● Never modify or repair the basic supports
or roof c
arrier system. Note
Read and take into account the instructions
included w ith the r

oof carrier system fitted
and keep them in the vehicle. Loading the roof carrier
Loads can only be correctly secured when the
r
oof
c

arrier system is correctly fitted ››› .
M ax
imum authori
sed roof load
The maximum authorised roof load is 50 kg.
The roof load includes the weight of the base »
123
Technical data
Advice
Operation
Emergencies
Safety

Operation
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 system
Introduction Read the additional information carefully
›› ›

 page 28
Dust and pollen filter
The dust and pollen filter with its activated
charcoal cartridge serves as a barrier against
impurities in the interior ambient air.
For the air conditioner to work with maximum
efficiency, the dust and pollen filter must be
replaced at the intervals specified in the
Maintenance Programme.
If the filter loses efficiency prematurely due
to use in areas with very high levels of air
pollution, the filter must be changed more
frequently than stated in the Service Sched-
ule. WARNING
Reduced visibility through the windows in-
cr e

ases the risk of serious accidents.
● Ensure that all windows are free of ice and
snow and th
at they are not fogged up pre-
venting a clear view of everything outside. 124

Operation
ABS to be activated more quickly and
eff ectiv
ely
.
Do not lift your foot off the brake pedal!
When the brake pedal is released or when
the brake force is reduced, braking assist au-
tomatically turns off the brake servo.
Traction control system (ASR) or Traction
Control (TC)*
In the event of wheelspin, the traction control
system ASR or TC reduces the engine torque
to match the amount of grip available. The
ASR or TC makes some situations easier, for
example, when starting, accelerating or go-
ing uphill, even in unfavourable road condi-
tions.
Electronic differential lock (EDS)
EDL is available when driving in straight lines
under normal conditions. When the EDL de-
tects wheelspin, it brakes the spinning wheel
and directs the power to the other one. To
prevent the disc brake of the braked wheel
from overheating, the EDL cuts out automati-
cally if subjected to excessive loads. The EDL
will switch on again automatically when the
brake has cooled down. WARNING
Driving at high speed on icy, slippery or wet
grou nd c

an result in loss of vehicle control and serious injury to the driver and passen-
ger
s.
● Adju

st your speed and driving style to visi-
bility
, road, traffic and weather conditions.
Even though the brake assist systems, ABS,
BAS, EDL, ASR and ESC* provide more securi-
ty, do not take unnecessary risks while driv-
ing.
● Brake assist systems can not overcome the
law
s of physics. Even with ESC* and other
systems, slippery and wet roads will always
be dangerous.
● Driving to quickly on wet ground can result
in the wheels lo
sing contact with the ground
in an effect known as “aquaplaning”. Without
adherence, it is impossible to brake, steer or
control the vehicle.
● Brake assist systems cannot avoid acci-
dents if
, for example, the driver does not re-
spect safety distances or drives to quickly in
difficult conditions.
● Even though brake assist systems are ex-
tremely eff
ective 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-
erab 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 197. 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-
sired.
● 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.148

Advice
The optimal reach of the equipment is only
ac hiev
ed w
ith an external aerial.
Check first with a specialised workshop that
understands the technical possibilities of in-
stallation if you wish to use a two-way radio
with a transmitting power of over 10 watts.
SEAT recommends taking your car in for tech-
nical service.
All legal requirements, together with the in-
structions for the use of two-way radios must
be observed. WARNING
If the two-way radio is not securely fastened
in pos ition, it

could be sent flying around the
vehicle in the event of sharp braking, sudden
manoeuvres or accident, causing injury.
● While driving, two-way radios must be se-
curely
fastened in position, outside the air-
bags deployment zones, or safely stowed
away. WARNING
When using a two-way radio without a con-
nection to an e xt

erior aerial, the maximum
permitted levels of electromagnetic radiation
may be exceeded. This is also the case if the
aerial has not been correctly installed.
● You should only use a two-way radio inside
the vehic
le if it has first been correctly con-
nected to an exterior aerial. Information stored by the control
u
nit
s Your vehicle is fitted at the factory with a ser-
ies
of

electronic control units responsible for
the engine and gearbox management. In ad-
dition, the control units supervise the per-
formance of the exhaust gas system and the
airbag systems.
Therefore, while the vehicle is being driven,
these electronic control units are continuous-
ly analysing the vehicle data. In the event of
faults or deviations from the theoretical val-
ues, only this data is stored. Normally, the
warning lamps on the instrument panel light
up in the event of faults.
This data can only be read and analysed us-
ing special equipment.
The storing of the data allows specialised
workshops to detect and repair faults. Stored
data may include:
● Data relating to the engine or the gearbox
● Speed
● Direction of travel
● Braking force
● Detection of seat belt
The v ehic

le control units never record conver-
sations held by passengers in the vehicle.
In vehicles equipped with an emergency call
function via the mobile phone or other appli- ances connected in the vehicle, it is possible
to send the v

ehicle position. If the control
unit records an accident with airbag activa-
tion, the system may automatically send a
signal. This will depend on the network oper-
ator. Normally, transmission is only possible
in areas with good coverage.
Event Data Recorder
The vehicle is not fitted with an event data re-
corder.
An event data recorder temporarily stores the
vehicle information. Therefore, in the event of
an accident, it is possible to obtain detailed
information about how the accident occur-
red. Vehicles with airbag systems can store
data relating to impact speed, seat belt sta-
tus, seat positions and airbag activation
times may be stored, etc. The volume of data
depends on the manufacturer.
Event data recorders can only be mounted
with authorisation from the vehicle owner
and, in some countries, they are governed by
local legislation.
Reprogramming control units
On the whole, all the data required for the
component management is stored in the con-
trol units. The programming of certain con-
venience functions, such as the turn signals,
individual door opening and instructions on
the display can be modified using special
162

Care and maintenance
equipment at the workshop. If the comfort
f u
nction
s are reprogrammed, the information
and Instruction Manual descriptions will not
coincide with the modified functions. There-
fore, SEAT recommends that any modifica-
tions be recorded in the section “Other work-
shop notes” in the Maintenance Programme.
The SEAT Official Service must have a record
of any modification to the programming.
Reading the vehicle fault memory
There is a diagnostics connector in the vehi-
cle interior for reading the vehicle fault mem-
ory. The fault memory documents errors and
deviations from the theoretical values of the
electronic control units.
The diagnostics connector is in the driver
side footwell area, next to the lever for open-
ing the bonnet, below a cover.
The fault memory should only be read and re-
set by a specialised workshop.
Using a mobile telephone in a vehicle
without c
onnection to an exterior aer-
ial Mobile telephones transmit and receive radio
w
av
e

s also called high-frequency energy,
both when in use and when on stand-by. Sci-
entific studies state that radio waves exceed-
ing certain values may be harmful to the hu- man body. International committees and au-
thorities h

ave established limits and direc-
tives in order to ensure electromagnetic radi-
ation from mobile phones remains within cer-
tain limits that do not endanger health. Nev-
ertheless, there is no conclusive scientific
evidence that wireless telephones are totally
safe.
That is why some experts recommend moder-
ate use of the mobile telephone, and the ap-
pliance of measures to reduce radiation on
the human body.
When a mobile phone not connected to an
exterior aerial is used inside the vehicle, the
electromagnetic radiation may be greater
than if the mobile phone were connected to a
built-in aerial or to another exterior aerial.
If the vehicle is fitted with a suitable hands-
free device that allows the employment of
numerous additional mobile telephone func-
tions with compatible Bluetooth technolo-
gy ®
, it will comply with the legislation in
many countries which only permits the use of
mobile phones inside vehicles using a
hands-free device.
The hands-free system of the Portable Navi-
gation System (supplied by SEAT) has been
designed for use with conventional mobile
phones and phones with Bluetooth technolo-
gy ®
››› page 164. Mobile telephones must be
placed in a suitable telephone support or
stored safely in the vehicle. If a support is used for the telephone, it must be securely
fas
tened to the base plate. The mobile will be
secure on the instrument panel and always
within reach of the driver only by following
these procedures. Mobile telephone connec-
tion with an external aerial is carried out sub-
ject to the hands-free device, via the tele-
phone support or by the Bluetooth ®
connec-
tions present in the mobile telephone and
the vehicle.
If the mobile phone is connected to an aerial
incorporated into the vehicle or an exterior
aerial connected to the vehicle, it will help re-
duce the electromagnetic radiation transmit-
ted and the risk to human health. It will also
improve the quality of the connection.
If the phone is used inside the vehicle with-
out the hands-free system, it will not be se-
curely fastened and will not be connected to
the exterior aerial of the vehicle telephone.
Nor will the telephone charge if it is not on
the support. In addition, some calls may
break off and the quality of the connection
will be affected.
Mobile telephones should only be used in-
side the vehicle if they are connected to a
hands-free system. SEAT recommends using
an external aerial should you wish to use a
mobile telephone inside the vehicle.
Bluetooth ®
is a registered trademark of Blue-
tooth ®
SIG, Inc. »
163
Technical data
Advice
Operation
Emergencies
Safety

Advice
WARNING
If the mobile phone is not securely fastened
in pos ition, it
could be sent flying around the
vehicle in the event of sharp braking, sudden
manoeuvres or accident, causing injury.
● While driving, the mobile telephone, other
equipment includin
g telephone accessories
such as telephone supports, notepads and
navigators must be correctly secured, away
from the airbags deployment zones, or stored
in a safe place. WARNING
When using a mobile telephone or two-way
ra dio w

ithout connecting an external aerial,
the maximum permitted levels of electromag-
netic radiation in the vehicle may be excee-
ded, thus putting the driver and the rest of
the vehicle occupants in danger. This is also
the case if the aerial has not been correctly
installed.
● A minimum of 20 centimetres should be
kept betw
een mobile phone aerials and artifi-
cial pacemakers, as mobile telephones may
affect the working of pacemakers.
● Do not keep mobile phones in breast pock-
ets dir
ectly above pacemakers.
● Immediately switch off the mobile tele-
phone if y
ou suspect any interference with
pacemakers or other types of medical equip-
ment. SEAT Portable System*
Fig. 156
In the centre console: Remove the
n av
ig

ator. Fig. 157
Remove the navigator holder The SEAT Portable System (supplied by SEAT)
al
lo
w

s for the use of other vehicle functions
such as additional applications ››› .The gradient and the angle of vision can be
set
b
y

moving the navigator to the required
position ››› Fig. 156 ››› .
The P or
t

able Navigation System Instruction
Manual can be observed directly on the
equipment.
Functions 1)
● Multifunction display (MFI) shown with ad-
ditional in
struments ››› page 86.
● Operation of a factory-fitted radio and a
›››
Booklet Radio system connected multime-
dia player.
● Image display.
● Navigation.
● Hands-free system for mobile telephones
via Bluet
ooth.
● Door open.
● Optical parking system (OPS).
● Recommended gear and driving advice.
Obser
ve the Instruction Manual in the equip-
ment
● Connect the Portable Navigation System.
● Press the button more on the scr
een.
● Press the Manual button. 1)
subject to the vehicle
164