2018 Seat Alhambra ECU

Towing bracket deviceKey of the Schematic diagram
››› Fig. 231:
PinMeaning
1Left turn signal
2Rear fog light
3Earth, pins 1 to 8
4Right turn signal
5Rear light, right
6Brake lights
7Rear light, left
8Reverse lights
9Permanent live
10Live charge cable
11Unassigned
12Unassigned
13Earth, pins 9 to 13 Electrical socket for trailer
The
v
ehic

le is fitted with a 13-pole power
socket for the electrical connection between
the trailer and the vehicle. With the engine
running, electrical devices on the trailer re-
ceive power from the electrical connection
(pin 9 and pin 10 on the trailer power plug).
If the system detects that a trailer has been
connected electrically, the electrical equip- ment on the trailer will receive voltage
through this

connection (pins 9 and 10). Pin
9 has a permanent live. This powers, for ex-
ample, the trailer's interior lighting. Electrical
devices such as a fridge in a caravan only re-
ceive electrical power if the engine is running
(through pin 10).
The earth wires, pin 3 and pin 13, should not
be connected to each other to avoid over-
loading the electrical system.
If the trailer has a 7-contact connector , you
will need to use an adapter cable. In this case
the function corresponding to pin 10 will not
be available.
Trailer cable
Always secure the trailer cable to the towing
vehicle correctly. Leave a little bit of slack in
the cable for turning. However, ensure that
the cable does not rub off the ground while
driving.
Trailer rear lights
Check the trailer rear lights to ensure they
work correctly and remain legal. Ensure that
the trailer does not use more than the maxi-
mum power ››› page 238.
Trailer connected to the anti-theft alarm:
● When a vehicle comes from the factory fit-
ted w ith an anti-thef

t alarm and tow hitch. ●
When the trai l

er is connected to the vehicle
using the socket.
● When the vehicle and trailer electrical sys-
tems w
ork correctly and are not damaged.
● When the vehicle is locked using the vehi-
cle k
ey and the anti-theft alarm is turned on.
When the vehicle is locked, the alarm is trig-
gered when the electrical connection be-
tween the vehicle and the trailer is removed.
Always turn off the anti-theft alarm system
before connecting or disconnecting a trailer.
Otherwise, the tilt sensor may erroneously
activate the alarm.
Trailer with rear LED lights
For technical reasons, trailers fitted with rear
LED lights cannot be connected to the anti-
theft alarm system.
When the vehicle is locked, the alarm does
not trigger if the electrical connection with
the trailer is cut if it has rear light with light-
emitting diodes. WARNING
Erroneous or unsuitable connection of elec-
tric c ab

les may supply energy to the trailer
causing an anomaly in the vehicle electronics
that could result in an accident with serious
consequences.
● All work on the electrical system must be
carried out on
ly by a specialised workshop. » 241
Technical data
Advice
Operation
Emergencies
Safety

Operation
●
Never c onnect
the trailer's electric system
to the electrical connections of the rear lights
or any other power sources. CAUTION
Do not leave the trailer connected to the vehi-
c le when p

arked; places on its support wheel
or its supports. For example, when changing
the load or a puncture, the vehicle will be
pushed up or down. The force acting on the
tow hitch and the trailer could damage the
vehicle or the trailer. Note
● In the event of

a fault in the vehicle or trail-
er electrical system or in the event of prob-
lems with the anti-theft alarm system, have
the system checked by a specialised work-
shop.
● If the trailer accessories use energy from
the power soc
ket when the engine is stop-
ped, the battery will be discharged.
● For technical reasons, trailers fitted with
rear LED light
s cannot be connected to the
anti-theft alarm system.
● If the vehicle battery is running low, the
electrica
l connection with the trailer is auto-
matically cut.
● With the engine running, the electrical
equipment on the trai
ler will be supplied with
power. Loading the trailer
Trailer weight / drawbar load
The trai
l

er weight is the load that the vehicle
can pull ››› . The drawbar load is the vertical
weight of

the tow hitch on the tow hitch ball
››› page 245.
The figures for trailer weights and drawbar
load weights given on the data plate of the
tow hitch are for values of this model only.
The correct figures for your specific vehicle,
which may be lower than these figures for the
tow hitch, are given in the vehicle documen-
tation. The instructions in the official vehicle
documents take precedence.
For the sake of road safety, SEAT recom-
mends using the maximum allowed drawbar
load. The handling of the combined vehicle
and trailer will be poor if the drawbar load is
too low.
The drawbar load increases the weight on the
rear axle, reducing the vehicle carrying ca-
pacity.
Gross combination weight
This figure refers to the combined weight of
the loaded vehicle and loaded trailer.
Loading the trailer
The combined vehicle and trailer must be
balanced. Use the maximum drawbar load authorised and do not overload the front or
the re
ar of

the trailer:
● Distribute loads in the trailer so that heavy
obj
ects are as near to the axle as possible or
above it.
● Correctly secure the trailer load.
Tyr
e pressure
Inflate the trailer tyres according to the man-
ufacturer's instructions.
Inflate the towing vehicles tyres to the maxi-
mum ››› page 287. WARNING
Exceeding the maximum authorised axle
loa d, dr

awbar load or the gross combination
weight of the towing vehicle and trailer could
cause a serious accident with severe conse-
quences.
● Never exceed the specifications.
● With the actual load on the front and rear
axle
s, the maximum axle load should never
be exceeded. The weight on the front and rear
should never exceed the gross vehicle
weight. WARNING
If the load moves, the stability and safety of
the v ehic

le and trailer combination will be se-
riously affected and this could result in a seri-
ous accident. 242

Towing bracket device
●
Alw a
ys correctly load the trailer.
● Always secure loads correctly with suitable
and undam
aged attachment rope or straps. Driving with a trailer
Adjusting the headlights
When to
w

ing a trailer, the front of the vehicle
may rise and so the dipped beam headlights
may blind other drivers. Use the headlight
range control to lower the cone of light. If you
do not have headlight range control, have
the headlights adjusted by a specialised
workshop. Vehicles with high-intensity dis-
charge lamps adapt automatically and do not
require adjustment.
Things to note when towing a trailer or cara-
van
● If the trailer has an overru
n brake, apply
the brakes gently at first and then, firmly.
This will prevent the jerking that can be
caused by the trailer wheels locking.
● As of the combined vehicle and trailer
mas
s, braking distances will be greater.
● Select a low gear before driving down a
steep hi
ll to use the engine braking effect to
slow down the vehicle. Otherwise, the brak-
ing system could overheat and fail.
● The vehicle centre of gravity and handling
chan
ge because of the trailer load and be- cause of the increased combined mass of the
vehicl

e and trailer.
● If the towing vehicle is empty and the trail-
er loaded then the lo
ad distribution is incor-
rect. If you must travel in these conditions,
drive carefully and reduce your speed accord-
ingly.
Hill starts with a trailer
Depending on the hill and the gross com-
bined weight, it is possible that the com-
bined vehicle and trailer “move backwards”
slightly.
For a hill start with a trailer, proceed as fol-
lows:
● Press and hold the brake pedal.
● Press the  button onc
e to turn off the
electric parking brake ››› page 188.
● Press and hold the  button t
o hold the
vehicle and trailer combination using the
parking brake.
● With a manual gearbox: press the clutch
pedal t
o the floor.
● Engage first gear or the gear range D
›››
page 193, Gearbox.
● Release the brake pedal.
● Move off slowly. To do this, gently release
the clutc
h pedal (for manual gearbox). ●
Rele
ase the  button only when the en-
gine provides sufficient power to move the
vehicle and trailer combination. WARNING
Jerking the trailer in an unsuitable manner
cou l

d cause loss of vehicle control with the
subsequent serious consequences.
● Driving with a trailer and transporting
heavy or a l
arge objects will change the vehi-
cle handling and braking distances.
● Anticipate traffic and be extremely cau-
tious. Brak
e early.
● Adjust your speed and driving style to visi-
bility
, road, traffic and weather conditions.
Reduce your speed, especially on steep hills.
● Accelerate gently and carefully. Avoid brus-
que manoeuvr
es and sudden braking.
● Always take the following precautions seri-
ously
. Reduce your speed immediately if you
observe the trailer rocking from side to side.
● Never try to stop the “snaking” by increas-
ing speed.
● A

lways take the speed limits for vehicles
with and without
trailers into account. 243
Technical data
Advice
Operation
Emergencies
Safety

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 radi-
us of action of the airbags, 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. 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
250

Care and maintenance
equipment at the workshop. If this is the
c a
se, the inf
ormation 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 c
onnection to an exterior aer-
ial Mobile telephones transmit and receive radio
w
av
e

s, 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
directive

s 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
incorporat
ed 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 pos ition, 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 e xt

erior aerial, the maximum
permitted levels of electromagnetic radiation » 251
Technical data
Advice
Operation
Emergencies
Safety

Advice
●
Aft er c
losing 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 no
body within its range. CAUTION
● To av oid d

amage 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. 241
Diagram for the location of the vari-
ou s
el

ements. From time to time, the levels of the different
fluid
s
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
The checking and refilling of service fluids
are carried out on the components men- 1 2
3
4
5
6 tioned above. These operations are descri-
bed in
››
›

page 271.
Overview
Further explanations, instructions and restric-
tions on the technical data are contained as
of ››› page 297
Engine oil Introduction WARNING
Incorrectly handling engine oil can cause in-
jury and seriou

s burns.
● Always protect your eyes when handling
engine oil
.
● Oil is toxic and must be kept out of the
reac
h of children.
● Engine oil should only be kept in its origi-
nal
packaging; the same goes for used oil un-
til it is disposed of.
● Never store engine oil in empty food con-
tainers
or bottles as other people may acci-
dentally drink it.
● Regular contact with engine oil can be bad
for the skin. If
you come into contact with en-
gine oil, wash your skin with soap and water.
● With the engine running, the engine oil
gets
extremely hot and can cause severe skin 274

Advice
Keep children away from acid and batter-
ies!
WARNING
Working on the vehicle battery and the elec-
trica l

system can cause corrosion, fire and
electric shocks. Always read and take into ac-
count the following warnings and safety
standards before carrying out any work:
● Before working on the battery, switch off
the engine, the ignition and al
l electrical de-
vices then disconnect the negative connec-
tion on the battery.
● Keep children away from acid and the bat-
tery
itself!
● Wear eye protection.
● Battery acid is very corrosive and caustic. It
can burn sk
in and cause blindness. When
handling the battery, protect yourself from
splashes of acids, above all your hands, arms
and face.
● Do not smoke and never work close to pla-
ces
exposed to flames or sparks.
● Avoid sparks and electrostatic discharges
when workin
g with cables and electrical devi-
ces.
● Never short the battery terminals.
● Never use a damaged battery. It can ex-
plode. Rep
lace a damaged battery immedi-
ately. ●
Rep l

aced 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
compar
tment: Check that the battery gas
ventilation hose is securely attached. CAUTION
● Nev er di s

connect 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 lon
g 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 lamp

It lights up
Faulty generator.
Contact a specialised workshop.
Have the electrical system checked.
Disconnect any unnecessary electri-
cal devices. The generator does not
charge the battery while the vehicle
is in motion. Several warning and control lamps light up
f
or 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 and messages are ignor-
ed, the v ehic

le may stall in traffic, or may
cause accidents and severe injuries.
● Never ignore the warning lamps or text
mess
ages.
● Stop the vehicle safely as soon as possible. CAUTION
Failure to heed the control lamps and text
mes s

ages when they appear may result in
faults in the vehicle. 284

Wheels and tyres
WARNING
Incorrectly securing the battery or using the
wron g b
attery 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-
le a

sed when the battery is under charge.
● The batteries should be charged in a well-
ventil
ated room only.
● Never charge a frozen or recently thawed
batter
y. 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 shor
t circuit. Reconnect first the posi-
tive cable and then the negative cable. CAUTION
● Never di s

connect 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 a
s solar panels or a battery charger, to
the 12-volt power sockets or the cigarette lighter. This could damage the vehicle's elec-
trica
l

system. For the sake of the environment
● Di spo

se of the battery in an environment-
friendly manner. Batteries contain toxic sub-
stances such as sulphuric acid and lead.
● Battery acid can contaminate the environ-
ment. If it
has leaked use adequate care col-
lecting it (gloves and protective glasses), and
dispose of it correctly. Wheels and tyres
T y
r

es
Introduction The SEAT Alhambra is equipped as standard
with anti-p
u

ncture technology tyres (Conti-
Seal). In the event of a puncture or air leak of
up to 5 mm, the tyre seals the hole with a
protective layer inside the tread.
The inclusion of this technology means that
there is no type of spare wheel included in
the vehicle's equipment.
SEAT recommend that all work on tyres and
wheels is carried out by a specialised work-
shop. These workshops have the necessary
special tools and replacement parts, trained
personnel and facilities for disposing of the
old tyres while respecting the environment.
SEAT recommends taking your car in for tech-
nical service. WARNING
The vehicle cannot be totally controlled or
brak ed if

the tyres (new or used) are worn or
damaged.
● Incorrect use of wheels and tyres could
make driv
ing more dangerous and result in
serious accidents and damage. » 287
Technical data
Advice
Operation
Emergencies
Safety