ECU Seat Alhambra 2015 Service Manual

Advice
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 position, 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 radi-
us of action of the airbags, or safely stowed
away. WARNING
When using a two-way radio without a con-
nection to an exterior 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 vehicle if it has first been correctly con-
nected to an exterior aerial. Information stored by the control
units
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 vehicle 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 vehicle 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-
c or
der.
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. For example, in vehicles with airbag sys-
tems, data relating to speed of impact, seat
belt status, seat positions and airbag activa-
tion times may be stored. 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
192

Care and maintenance
equipment at the workshop. If this is the
case, the information and descriptions given
in the Instruction Manual will not match the
original functions. Therefore, SEAT recom-
mends that any modifications be recorded in
the section “Other workshop notes” in the
Maintenance Programme.
The technical service centre must have a re-
cord 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 connection to an exterior
aerial Mobile telephones transmit and receive radio
waves, both when in use and when on stand-
by. Scientific studies state that radio waves
exceeding certain values may be harmful to
the human body. International committees and authorities have established limits and
directives in order to ensure electromagnetic
radiation from mobile phones remains within
certain limits that do not endanger health.
Nevertheless, there is no conclusive scientif-
ic evidence that wireless telephones are to-
tally safe.
Therefore, some experts recommend that use
of mobile phone be kept to a minimum until
the results of current research are published.
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, 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 mounted at the facto-
ry has been designed for use with conven-
tional mobile phones and phones with Blue-
tooth technology. Mobile phones should be
placed on a suitable phone cradle. In addi-
tion, the cradle should always be correctly fit-
ted into the base plate. This ensures that the
mobile phone is securely attached to the
dash panel, it is always within reach of the
driver and is connected to the vehicle exterior
aerial.
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 phones should only be used inside
the vehicle if they are connected to a hands-
free system with an exterior aerial.
WARNING
If the mobile phone is not securely fastened
in position, it could be sent flying around the
vehicle in the event of sharp braking, sudden
manoeuvres or accident, causing injury.
● While driving, mobile phones must be se-
curely fastened in position, outside the radi-
us of action of the airbags, or safely stowed
away. WARNING
When using a mobile phone without a con-
nection to an exterior aerial, the maximum
permitted levels of electromagnetic radiation » 193Technical specifications
Advice
Operation
Safety

Checking and refilling levels
● Before opening the bonnet, make sure that
the windscreen wiper arms are in place
against the windscreen ››› .
● Open the driver door.
● Pull the release lever ››› Fig. 162 in the di-
r ection of
the arrow. The bonnet is released
from the lock carrier by a spring mechanism
››› .
● Lift the bonnet using the release lever
››› Fig. 163 (arrow) and open the bonnet fully.
The bonnet i

s held open thanks to the gas
strut.
Closing the bonnet
● To close the bonnet, pull it down to over-
come the gas strut pressure ››› .
● Allow the bonnet to fall into the lock carrier.
Do not press down.
If the bonnet is not correctly closed, open it
once again and close it correctly.
The bonnet is correctly closed when it is flush
with the corresponding parts on the body-
work. WARNING
If the bonnet is not correctly closed, it could
suddenly open while driving leaving the driv-
er without visibility. This could result in a se-
rious accident.
● After closing the bonnet, always check that
it is properly secured by the locking mecha- nism in the lock carrier. The bonnet must be
flush with the surrounding body panels.
●
While driving, if you notice that the bonnet
is not correctly closed then stop immediately
and close it correctly.
● Only open and close the bonnet when there
is nobody within its range. CAUTION
● To avoid damage to the bonnet and to the
windscreen wiper arms, only open it when
the windscreen wipers are in place against
the windscreen.
● Before driving, always lower the wiper
arms. Checking fluid levels
Fig. 164
Diagram for the location of the vari-
ous elements. From time to time, the levels of the different
fluids in the vehicle must be checked. Never
fill with incorrect fluids, otherwise serious
damage to the engine may be caused.
Coolant fluid deposit
Engine oil dipstick
Oil filler neck
Brake fluid reservoir
Vehicle battery (underneath a cover)
Windscreen washer fluid reservoir »
1 2
3
4
5
6
217
Technical specifications
Advice
Operation
Safety

Advice
●
Avoid sparks and electrostatic discharges
when working with cables and electrical devi-
ces.
● Never short the battery terminals.
● Never use a damaged battery. It can ex-
plode. Replace a damaged battery immedi-
ately.
● Replaced damaged or frozen batteries as
soon as possible. A flat battery can also
freeze at temperatures close to 0 °C (+32 °F).
● For vehicles with the battery in the luggage
compartment: Check that the battery gas
ventilation hose is securely attached. CAUTION
● Never disconnect the battery if the ignition
is switched on or if the engine is running.
This could damage the electrical system or
electronic components.
● Do not expose the battery to direct sunlight
over a long period of time, as the intense ul-
traviolet radiation can damage the battery
housing.
● If the car is left standing for long periods,
protect the battery from extreme cold temper-
ature so that it does not “freeze up” and be-
come damaged. Warning lampIt
lights upPossible causeSolution 
Faulty generator.
Contact a specialised
workshop. Have the
electrical system
checked.
Disconnect any unneces-
sary electrical devices.
The generator does not
charge the battery while
the vehicle is in motion.
Several warning and control lamps light up
for a few seconds 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 and messages are ignor-
ed, the vehicle may stall in traffic, or may
cause accidents and severe injuries.
● Never ignore the warning lamps or text
messages.
● Stop the vehicle safely as soon as possible. CAUTION
Failure to heed the control lamps and text
messages when they appear may result in
faults in the vehicle. Checking the electrolyte level of the
vehicle battery
Fig. 172
In the engine compartment: Remove
the cover from the vehicle's battery. Fig. 173
In the engine compartment: unfold
the vehicle's battery hose. The battery's electrolyte level should be
checked regularly in high-mileage vehicles,
in hot countries and in older batteries. Other
batteries do not require maintenance.
228

Advice
● The vehicle must be unlocked before dis-
connecting the battery, otherwise the alarm
will be triggered.
● First disconnect the negative cable and
then the positive ››› .
Connecting the vehicle's battery
● Before reconnecting the battery, switch off
the engine and all electrical devices.
● First reconnect the positive cable and then
the negative ››› .
Different control lamps may light up after
connecting the battery and switching the ig-
nition on. They will be turned off after a short
trip at a speed of between 15-20 km/h
(10-12 mph). If the warning indicators remain
lit, please visit a specialised workshop to
have the vehicle checked.
If the battery has been disconnected for a
long time, it is possible that the next service
date is not displayed or calculated correctly
››› page 40 . Respect the maximum service in-
t er
vals permitted ››› Booklet Maintenance
Programme.
Vehic

les with Keyless Access (››› page 59): if,
after connecting the battery, the ignition can-
not be switched on, lock and unlock the vehi-
cle from outside. Then try to switch on the ig-
nition again. If the ignition does not work,
seek professional assistance. Automatic device disconnection
The intelligent vehicle electrical system auto-
matically implements a range of measures to
prevent the battery from discharging when
high demands are made on it:
● the idling speed is increased so that the al-
ternator provides more electricity.
● where necessary, the power of the most
powerful devices is reduced or even com-
pletely disconnected.
● On starting the engine, the power supply
from the 12-volt power sockets and the ciga-
rette lighter may be interrupted for a short
time.
The on-board management program cannot
always prevent the battery from running flat.
For example, if the ignition is left on for a
long period with the engine off or if the side
lights or parking lights are left on while the
vehicle is stationary.
Why does the battery run flat?
● When stationary for a long time without
starting the engine, particularly if the ignition
is switched on.
● Use of electrical devices with the engine
switched off.
● If the auxiliary heater is running
››› page 128
. WARNING
Incorrectly securing the battery or using the
wrong battery can cause short-circuits, fire
and serious injuries.
● Always use only maintenance free batteries
that do not run flat alone and whose proper-
ties, specifications and size correspond to
the standard battery. The specifications are
indicated on the battery case. WARNING
A highly explosive mixture of gases is re-
leased when the battery is under charge.
● The batteries should be charged in a well-
ventilated room only.
● Never charge a frozen or recently thawed
battery. A flat battery can also freeze at tem-
peratures close to 0 °C (+32 °F).
● Always replace a battery which has frozen.
● Battery cables not correctly connected may
cause a short circuit. Reconnect first the posi-
tive cable and then the negative cable. CAUTION
● Never disconnect the battery if the ignition
is switched on or if the engine is running.
This could damage the electrical system or
electronic components.
● Never plug accessories that supply current,
such as solar panels or a battery charger, to
the 12-volt power sockets or the cigarette 230

Wheels and tyres
time to time according to the system
››› Fig. 174 . The useful life of all the tyres will
then be about the s
ame time.
SEAT recommends you take the vehicle to a
specialised workshop to have the tyres
changed.
Tyres that are over 6 years old
Tyres are subject to an ageing process as a
result of physical and chemical processes.
This may affect their performance. Tyres
which are stored for long periods of time
without being used, harden and become
more fragile than tyres which are in constant
use.
SEAT recommends that tyres over six years
old are replaced with new tyres. This also ap-
plies to tyres which appear to be in perfect
condition on the outside and which have a
tread depth within the values stipulated by
the Law ››› .
The date of manufacture, part of the tyre
identification number (TIN), indicates the age
of the tyre ››› page 238 .
St orin

g tyres
Mark tyres when you remove them to indicate
the direction of rotation (left, right, forwards,
backwards). This ensures you will be able to
mount them correctly when you replace
them. When removed, the wheels and/or
tyres should be stored in a cool, dry and pref- erably dark location. Do
not place tyres
mount

ed on the wheel in a vertical position.
Protect tyres not mounted on wheels from
dirt by storing them in suitable bags and
standing them on the ground on their tread. WARNING
Aggressive fluids or substances could result
in visible 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,
may 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 used in an emergency and with ex-
treme caution. For the sake of the environment
Old tyres must be disposed of by qualified
personnel according to the laws in the coun-
try concerned. Wheel rims
The design of wheel bolts is matched to the
rims. If different 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 246.
F or t

echnical reasons, it is not generally pos-
sible 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 c on

sulted 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 246
.
Beadlock wheel rims
Beadlock wheel rims have various compo-
nents. These are joined together by special
bolts using a special procedure. This ensures »
233
Technical specifications
Advice
Operation
Safety

Emergencies
First-aid kit
There is a first aid kit ››› page 112 in the rear
left-hand side storage compartment of the
luggage compartment.
The first aid kit must comply with legal re-
quirements. Check the expiry date of the con-
tents of the first aid kit.
Fire extinguisher
There is a Fire extinguisher underneath the
fr ont
passenger seat.
The fire extinguisher must conform to legal
requirements, be ready for use and be
checked regularly. Check the certification
seal on the extinguisher. WARNING
Loose objects in the vehicle interior can be vi-
olently thrown in case of a sudden manoeu-
vre or braking and especially in accidents
causing serious injury.
● Secure fire extinguishers, first aid kit, re-
flective vests and warning triangle securely
to their respective supports. Protecting yourself and securing the
vehicle
Fig. 179
In the centre of the dash panel: push
button for hazard warning lights. Always fulfil legal requirements for securing a
broken down vehicle. In a number of coun-
tries it is now obligatory, for example, to turn
on the hazard warning lights and use a re-
flective safety vest
››› page 242.
When being towed with the hazard warning
lights on, a change in direction or traffic lane
can be indicated as usual using the turn sig-
nal lever. The hazard lights will be interrup-
ted temporarily.
For your own safety and that of other passen-
gers, the following points should be ob-
served in the order given:
Park the vehicle a safe distance from
traffic and on suitable ground ››› .
1. Turn on the hazard warning lights with
the button

››› Fig. 179.
Connect the electronic parking brake
››› page 137 .
Mo v

e the selector lever to its intermedi-
ate position or to
P ››› page 143.
Stop the engine and remove the key
from the ignition ››› page 133.
Have all occupants leave the vehicle and
move to safety, for example behind a
guard rail.
When leaving the vehicle, take all keys
with you.
Place an emergency warning triangle to
indicate the position of your vehicle to
other road users.
Allow the engine to cool and check if a
specialist is required.
Examples of when to use the hazard warning
lights:
● If the vehicles ahead suddenly slow down
or reach the end of a traffic jam, to warn the
vehicles behind.
● In case of an emergency.
● If the vehicle breaks down.
● When being towed.
Always comply with the applicable laws re-
garding the use of hazard warning lights. »
2.
3.
4.
5.
6.
7.
8.
9.
243Technical specifications
Advice
Operation
Safety

Advice
If the hazard warning lights are not working,
you must use an alternative method of draw-
ing attention to your vehicle. This method
must comply with traffic legislation. WARNING
A faulty vehicle in traffic represents a risk of
accident for the driver and for other road
users.
● Stop the vehicle safely as soon as possible.
Park the vehicle a safe distance from sur-
rounding traffic to lock all the doors in case of
an emergency. Turn on the hazard warning
lights to warn other road users.
● Never leave children or disabled people
alone in the vehicle if the doors are to be
locked. In case of an emergency, passengers
will be trapped inside the vehicle. Individuals
locked in the vehicle can be exposed to very
high or very low temperatures. WARNING
The components of the exhaust system reach
very high temperatures. This could cause a
fire and considerable damage.
● Always park your vehicle so that no part of
the exhaust system can come in contact with
flammable materials (such as dried grass or
fuel). Note
● The vehicle battery will discharge and run
down if the hazard warning lights remain on for too long (even with the ignition turned
off).
● For some vehicles, the brake lights will
blink when braking suddenly at speeds of ap-
proximately 80 km/h (50 mph) to alert vehi-
cles to the rear. If braking continues, the haz-
ard warning lights system will automatically be turned on at a speed of less than approxi-
mately 10 km/h (6 mph). The brake lights re-
main lit. Upon accelerating, the hazard warn-
ing lights will be automatically turned off. Vehicle tool kit*
Introduction When securing the vehicle in case of a break-
down, please note the legal requirements for
each country.
WARNING
Loose objects in the vehicle interior can be vi-
olently fired through the compartment in
case of a sudden manoeuvre or braking and
especially in accidents causing serious in-
jury.
● Make sure that the vehicle tools are stored
safely in the luggage compartment. WARNING
Unsuitable or damaged vehicle tools can
cause injury or accidents.
● Never work with inappropriate or damaged
tools. Location
Fig. 180
In the luggage compartment, viewed
from inside the vehicle: the vehicle tool kit lo-
cated in a cavity close to the lock carrier. Depending on the model, the vehicle tools
may be kept in the luggage compartment, in
a cavity close to the lock carrier
››› Fig. 180 .
L oo
sen the safety straps and remove the ve-
hicle tool kit. For vehicles factory-fitted with
winter tyres, you will find additional tools in a
toolbox located in the luggage compartment.
244

Emergencies
Note
After use, return the jack to its initial position
using the handle in order to securely store it
in the vehicle. Components
Fig. 181
Components of the vehicle tool kit The vehicle tool kit depends on the vehicle
equipment. The following is a description for
a vehicle with all options.
The individual elements of the vehicle tool
kit

›
›› Fig. 181
Ad apter for anti-theft bolt. SEAT recom-
mend you carry the wheel bolt adapter in
the vehicle tool kit at all times. The code
number
of the anti-theft wheel bolt is
stamped on the front of the adapter. In
case it is lost, another adapter can be or-
1 dered using this number. Note the anti-
theft bolt code for the wheels and keep it
in a place other than the vehicle.
Towline anchorage, removable.
Wheel spanner.
Jack crank handle. The crank handle
needs to be folded away before returning
it to the tool kit.
Jack. Before storing the jack in the tool
kit, fold its hook.
Screwdriver with hexagon socket in the
handle for screwing and unscrewing the
wheel bolts. The screwdriver bit is inter-
changeable. The screwdriver may be
found underneath the wheel spanner.
Wire hook for pulling off the wheel cover,
integral hubcaps and the wheel bolt
caps.
Note
The jack does not generally require any main-
tenance. If required, it should be greased us-
ing universal type grease. 2
3
4
5
6
7 Folding wheel chocks*
Fig. 182
To unfold the foldable wedges. The folding chocks are in the tool kit
››› Fig. 181 .
As semb

le the folding chocks
● Lift the base plate ››› Fig. 182 1 .
● Insert the two “tabs” of the mounting plate
into the long openings on the base plate 2 .
Correct use
The folding chocks may be used to block the
wheel diagonally opposite to the wheel being
changed.
The chocks should be placed directly in front
and behind the wheel and only be used on
firm ground. »
245
Technical specifications
Advice
Operation
Safety

Advice
If the wheel bolt 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. 185 .
● Ho l
d the wheel brace at the end and rotate
the bolt approximately one turn anticlockwise
››

› .
Loosening anti-theft wheel bolts
For wheels with full trim, the anti-theft wheel
lock must be threaded into position
››› Fig. 186 2 or
3 . Otherwise 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 anti-theft wheel
bolt.
● Fit the wheel brace onto the adapter as far
as possible.
● Hold the wheel brace at the end and rotate
the bolt approximately one turn anticlockwise
› ›

› .
Important information about wheel bolts
The wheel rims and bolts 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
140 Nm.
Hav e the tight

ening 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
tor

que.
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
could be released while driving leading to
loss of vehicle control and serious damage.
● Only use wheel bolts which correspond to
the wheel rims in question.
● Never use different wheel bolts. ●
The bolts and threads should be clean, free
of oil and grease and easy to thread.
● To loosen and tighten the wheel bolts, al-
ways use the wheel brace supplied with the
vehicle.
● Loosen the wheel bolts only about one turn
before raising the vehicle with the jack.
● 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.
● Never loosen the bolted joints of wheel
rims with bolted ring trims.
● If the wheel bolts are not tightened to the
correct torque, they may come loose while
driving, and the bolts and rims may come
out. If the tightening torque is too high, the
wheel bolts and threads can be damaged. 248