ECU Seat Alhambra 2016 Service Manual

Transport and practical equipment
roof. All these system components are
av ai
l
able from a technical service centre.
Securing the base supports and roof carrier
system
Always secure the base supports and roof
carrier system correctly.
The roof carrier system must always be instal-
led exactly according to the instructions pro-
vided.
The position openings are located on the in-
ner side of the side roof rods ››› Fig. 175. 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 use base supports and roof carrier
syst
ems 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. 175.
● 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. ●
Alw a

ys fit the roof carrier system correctly
for wheels, skis, surfboards, etc.
● Never modify or repair the basic supports
or roof c
arrier system. Note
Read and take into account the instructions
inc luded 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 100 kg
(220 lbs). The roof load includes the roof car-
rier system and the load being transported
››› .
A lw
a

ys check the roof carrier system weight
and the weight of the load to be transported
and, if necessary, weigh them. Never exceed
the maximum authorised 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 exceed the capacity of the roof carri-
er syst
em even if this is less than the maxi-
mum authorised roof load.
● Secure heavy items as far forward as possi-
ble and, in g
eneral, distribute the vehicle
load uniformly. WARNING
Loose and incorrectly secured loads can fall
from the r oof

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

lways secure loads correctly. 165
Technical data
Advice
Operation
Emergencies
Safety

Operation
Storage compartments Intr oduction Storage compartments must only be used to
st
or
e light or small objects.
In the front centre armrest compartment the
following factory-fitted connections are avail-
able: USB/AUX-IN.
The factory-fitted CD changer is located in the
left-hand storage compartment of the boot. WARNING
In the event of sudden braking movements or
turn s, loo

se objects may be thrown around
the vehicle interior. This could cause serious
injuries to passengers and cause the driver to
lose control of the vehicle.
● Do not transport animals or place hard,
heavy or sh
arp objects inside the vehicle in:
open storage compartments, dash panel, rear
shelf, items of clothing or bags.
● While driving, always keep object compart-
ments c
losed. WARNING
Objects falling into the driver's footwell could
prev ent

use of the pedals. This could lead the
driver to lose control of the vehicle, increas-
ing the risk of a serious accident. ●
Mak e s

ure the pedals can be used at all
times, with no objects rolling underneath
them.
● The floor mat should always be secured to
the floor.
● Never p

lace other mats or rugs on top of
the original
mat supplied by the factory.
● Make sure that no objects can fall into the
driver's f
ootwell while the vehicle is in mo-
tion. CAUTION
● Obj

ects on the shelf could chafe against
the wires of the heating element in the heat-
ed rear window and cause damage.
● Do not keep heat-sensitive objects, food or
medicines
inside the vehicle. Heat and cold
could damage them or render them useless.
● Light-transparent objects placed inside the
vehicl
e, such as lenses, magnifying glasses
or transparent suction caps on the windows,
may concentrate the sun's rays and cause
damage to the vehicle. Note
The ventilating slits between the heated rear
windo w and the shelf

must not be covered so
that used air can escape from the vehicle. Spectacle case in the roof console
Fig. 176
On the roof console: sunglasses
s t
or

age compartment. To open, pr
ess and release the button
› ›

› Fig. 176 (arrow).
To close, press the cover upwards until it
clicks into place.
To ensure the interior monitoring works cor-
rectly, the spectacle case must be closed
when the vehicle is locked ››› page 120.
166

Transport and practical equipment
Vehicle wallet compartment
The glo v
e c
ompartment is designed to store
the vehicle documentation.
The vehicle on-board documentation wallet
should always be kept in the glove compart-
ment. Insert it crosswise in the glove com-
partment.
Glove compartment cooling
There is an air vent ››› Fig. 183 A on the rear
p anel
so th

at cooled air from the air condi-
tioner (this must be connected) is fed into
the glove compartment. Turn the air vent to
open and close it. WARNING
The risk of serious injuries in the event of an
acc ident

during a sudden braking manoeuvre
or turn is increased if the glove compartment
is left open.
● Keep the glove compartment closed while
the vehic
le is in motion. CAUTION
For structural reasons, some model versions
wi l

l have gaps behind the glove compartment
into which small objects may fall. This could
lead to strange noises and damage to the ve-
hicle. You should therefore not keep very
small objects in the glove compartment. Storage compartments in the rear
f
ootw
el

l* Fig. 184
Storage compartments in the foot-
w el
l

of the second row of seats. Move the mat to one side (where applicable).
T
o
open

, pull on the rear centre part of the
cover ›››
Fig. 184 (arrow).
To close, press the cover down. WARNING
Make sure children are properly belted in and
corr ectly

secured to avoid severe or fatal inju-
ries while the vehicle is in motion.
● If you are using a child seat with a base or
foot, alw
ays install this base or foot correctly
and safely.
● If the vehicle has a storage compartment in
the footwel
l in front of the last row of seats, this compartment cannot be used as de-
signed; on the c
ontr

ary, it must be filled us-
ing the specially designed accessory so that
the base or foot is correctly supported by the
closed compartment and the child seat is se-
cured properly. If this compartment is not
suitably secured when using a child seat with
a base or foot then the compartment cover
could rupture in an accident and the child will
be ejected and suffer serious injury.
● Please read and observe the child seat
manufact
urer's handling instructions. Drawers*
Fig. 185
Drawer under the front seat There may be a drawer below the front seats.
Openin
g and c
lo

sing the drawer
To open, press the button on the drawer han-
dle and pull the drawer out. »
169
Technical data
Advice
Operation
Emergencies
Safety

Driver assistance systems
WARNING
Driving at high speed on icy, slippery wet
grou nd c
an result in loss of vehicle control
and serious injury to the driver and passen-
gers.
● Adjust 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 sys-
tems, 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 consider-
ably r

educed 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, ASL EDL and ESC.
● Changes to the vehicle suspension or using
unap
proved wheel/tyre combinations can af-
fect operation of the ABS, BAS, ASL EDL and
ESC, as well as their effectiveness.
● Likewise, the effectiveness of ESC depends
on the use of s
uitable tyres ››› page 288. Note
● To en s

ure that the ESC and ASR work prop-
erly, all four wheels must be fitted with iden-
tical tyres. Any differences in the rolling radi-
us of the tyres can cause the system to re-
duce engine power when this is not desired.
● If a malfunction should occur in the ABS,
the ESC, EDL and ASR w
ill also be out of ac-
tion.
● Noises may be heard while any of the
above sy
stems are operating. Switching ASR on and off
Fig. 206
Detailed view of the centre console:
b utt
on u

sed to switch ASR on and off (vehi-
cles with ESC) The electronic stability control ESC consists
of
ABS, EDL
and ASR and on

ly works when
the engine is running.
The ASR can be switched off while the engine
is running by pressing the  OFF
› ›
› Fig. 206
b

utton. The ASR (and similar) is only switch-
ed off when the required traction is not ob-
tained:
● When driving through deep snow or on
loose grou
nd (gravel, etc.).
● When “freeing” a trapped vehicle.
Turn the ASR bac
k on by pressing the but-
ton  OFF
›
› ›
Fig. 206
.
207
Technical data
Advice
Operation
Emergencies
Safety

Towing bracket device
Towing bracket device
Driv in
g w
ith a trailer
Introduction Always be aware of the legal requirements for
eac
h c

ountry to drive with a trailer and to use
a tow hitch.
Your car is intended mainly for transporting
passengers however, it can also be used to
tow a trailer provided that it is fitted with the
necessary equipment. The additional load
has an effect on the useful life, fuel con-
sumption and the vehicle performance and,
in some cases, reduce the service intervals.
Driving with a trailer requires more force from
the vehicle and, thus, more concentration
from the driver.
For wintertime temperatures, fit winter tyres
to the vehicle and the trailer.
Drawbar load
The maximum permitted Drawbar load exer-
ted by the trailer drawbar on the ball joint of
the tow hitch must not exceed 100 kg (ap-
proximately 220 lbs).
Vehicles with the Start-Stop function
With a SEAT factory fitted or retrofitted tow
hitch, the Start-Stop function is automatically deactivated when a trailer is connected. For
to
w hit

ches not installed by SEAT, the Start-
Stop function must be deactivated manually
using a button located on the dash panel be-
fore driving with a trailer and it must remain
off for the entire journey ››› .
WARNING
Never transport people in a trailer: this will
endan g

er in their life and is against the law. WARNING
The incorrect use of the tow hitch can cause
acc ident

s and injury.
● Only use a tow hitch in perfect condition
and correctly
installed.
● Never change or repair a tow hitch.
● To reduce the risk of injury in case of a re-
vers
ing collision, injury to pedestrians and
cyclists when parking, always keep the ball
joint in when a trailer is not being used.
● Never fit a trailer tow hitch “that distrib-
utes
the load” or “balances the load”. Your
vehicle has not been designed for this type of
tow hitch. The tow hitch may fail and the
trailer will separate from the vehicle. WARNING
Driving with a trailer and transporting heavy
or lar g

e objects can affect vehicle handling
and even cause an accident. ●
Alw a

ys secure loads correctly with suitable
and undamaged attachment rope or straps.
● Adjust your speed and driving style to visi-
bility
, road, traffic and weather conditions.
● Trailers with a high centre of gravity can
over
turn more easily than those with a low
centre of gravity.
● Avoid brusque manoeuvres and sudden
brakin
g.
● Always take the following precautions seri-
ously
.
● Reduce your speed immediately if you ob-
serve the tr
ailer rocking from side to side.
● Never drive at more than 80 km/h (50 mph)
when tow
ing a trailer (or 100 km/h [62 mph]
in exceptional circumstances). This also ap-
plies in countries where higher speeds are
permitted. Always take the speed limits for
vehicles with and without trailers in each
country into account.
● Never try to stop the “snaking” by increas-
ing speed. WARNING
When driving with a trailer and using a tow
hitc h th

at was not installed by SEAT, the
Start-Stop function must be manually deacti-
vated. Otherwise, this could cause a braking
anomaly that could result in an accident with
serious consequences.
● Always manually deactivate the Start-Stop
function when a tr
ailer is being used on a tow
hitch that has not been installed by SEAT. » 237
Technical data
Advice
Operation
Emergencies
Safety

Operation
Note
● Alw a
ys turn off the anti-theft alarm system
before connecting or disconnecting a trailer
››› page 119. Otherwise, the tilt sensor may
erroneously activate the alarm.
● Never use a trailer with a new engine (for
the first
1,000 km or 600 miles) ››› page 247.
● At SEAT, we recommend folding in the tow
hitch b
all when a trailer is not being used. In
case of a rear collision, the damage caused to
the vehicle with the extended tow hitch ball
could be more extensive.
● In some models, a tow hitch is necessary
for to
wing vehicles. For this reason, you
should store the tow hitch in the vehicle at all
times. Technical requirements
If the car is supplied with a
fact
or
y-fitted tow-
ing bracket it will already have the necessary
technical modifications and meet the statuto-
ry requirements for towing a trailer.
Only use an approved tow hitch for the gross
trailer weight rating. The tow hitch must be
suitable for both the vehicle and trailer and
must be securely fitted to the vehicle chassis.
Only use a tow hitch with a removable ball
joint. Always check and take into account the
tow hitch manufacturer's instructions. Never
fit a trailer tow hitch “that distributes the
load” or “balances the load”. Bumper mounted tow hitch
Never fit a t

ow hitch or its attachments to the
bumper. A tow hitch should never interfere
with the bumper performance. Do not modify
the exhaust system and brake system. Regu-
larly check the tow hitch to ensure it is firmly
fitted.
Engine cooling system
Driving with a trailer increases the load on
the engine and cooling system. The cooling
system should always have sufficient coolant
and to be able to cope with the vehicle and
trailer.
Electric trailer brake
If the trailer has its own braking system,
please note the relevant legal requirements.
The trailer braking system should never be
connected to the vehicle braking system.
Trailer cable
Always use a cable between the vehicle and
the trailer ››› page 240.
Trailer rear lights
The rear lights of a trailer must fulfil the cor-
responding standards ››› page 240.
Never connect the trailer's rear lights directly
to the vehicle electric system. In case of any
doubt about the electrical connection of the trailer, ask a specialised workshop. SEAT rec-
ommends
visiting a technical service.
Wing mirrors
When the field of vision behind the trailer
cannot be seen using the standard wing mir-
rors of the towing vehicle, additional wing
mirrors are required according to the legal re-
quirements of each country. The wing mirrors
must be fitted before driving and must pro-
vide a sufficient field of vision behind.
Trailer electricity consumption
Never exceed the specifications:
DevicesMaximum power
Side lights and rear lights50 Watts
Turn signal (each side)54 Watts
Brake lights (total)84 Watts
Reversing lights (total)42 Watts
Rear fog light42 Watts WARNING
If the tow hitch is badly fitted or unsuitable,
the trai l

er may separate from the vehicle
causing an accident with serious consequen-
ces. 238

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 288. 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 when starting.
For a hill start with a trailer, proceed as fol-
lows:
● Press and hold the brake pedal.
● Press the button  once to turn off the
el ectric
p

arking brake ››› page 189.
● Press and hold the button  to hold the
v ehic
l

e 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 194, 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 pr o
v
ides 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