check engine Seat Alhambra 2012 Workshop Manual

292Checking and refilling levels
Vehicle battery
Introduction
The battery is a component of the vehicle's electrical system.
Never work on the electrical system without fully understanding the opera-
tions required, the applicable safety standards and without the correct tools
⇒ 
! Have the work carried out by a specialised workshop if you are uncer-
tain. SEAT recommends visiting a Technical Service. Negligent work can
cause serious injury.
Location and number of batteries in the vehicle
The battery is located in the engine compartment.
Explanation of the warning indications on the vehicle's battery
SymbolMeaning
Wear eye protection!
Battery acid is very corrosive and caustic. Always wear
protective gloves and eye protection!
Fires, sparks, open flames and smoking are prohibited.
A highly explosive mixture of gases is released when
the battery is under charge.
Keep children away from acid and batteries!
Additional information and warnings:
● ⇒ Booklet Maintenance Programme
● Starter assist systems (Start-Stop function) ⇒ page 196
● Working in the engine compartment ⇒ page 279
● Accessories, parts replacement, repairs and modifications ⇒ page 261
WARNING
Working on the vehicle battery and the electrical system can cause corro-
sion, fire and electric shocks. Always read and take into account the fol-
lowing warnings and safety standards before carrying out any work:
● Before working on the battery, switch off the engine, the ignition and
all electrical devices then disconnect the negative connection on the bat-
tery.
● Keep children away from acid and the battery itself!
● Wear eye protection.
● Battery acid is very corrosive and caustic. It can burn skin 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 places exposed to flames or
sparks.
● Avoid sparks and electrostatic discharges when working with cables
and electrical devices.
● Never short the battery terminals.
● Never use a damaged battery. It can explode. Replace a damaged bat-
tery immediately.
● Replaced damaged or frozen batteries as soon as possible. A flat bat-
tery 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. 

294Checking and refilling levels
Checking the electrolyte level of the vehicle battery
Fig. 175 In the engine
compartment: Remove
the cover from the vehi-
cle's battery.
Fig. 176 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 re-
quire maintenance. Start-Stop systems (
⇒ page 198) are equipped with a special battery label-
led “AGM”. For technical reasons, it is not possible to check the electrolyte
level of these batteries
Preparations
● Prepare the vehicle for work in the engine compartment ⇒ page 279
● Open the bonnet  ⇒ page 279.
Opening the battery cover
The battery covers are different depending on the engine size of the vehicle:
● In the case of a cover: press the tab ⇒ fig. 175 A
in the direction of the
arrow and pull the cover upwards.
● In the case of a hose: fold the cover to one side to remove ⇒ fig. 176.
Checking the battery electrolyte level
● Make sure there is sufficient lighting to clearly recognise the colours.
Never use open flames or sparklers as a light source.
● Depending on the level of acid, the Magic eye on the top of the battery
will change colour.
Colour indicatorNecessary operations
light yellow or col-
ourlessThe electrolyte level of the vehicle's battery is too low.
Have the battery checked and, where applicable, re-
placed by a specialised workshop.
Black indicationThe electrolyte level of the vehicle's battery is correct.
WARNING
Working with the vehicle battery involves a risk of corrosion, explosions
and electric shock.
● Always wear protective gloves and eye protection. 

295
Checking and refilling levels
WARNING (Continued)
● Battery acid is very corrosive and caustic. It can burn skin and cause
blindness. When handling the battery, protect yourself from splashes of
acids, above all your hands, arms and face.
● Never tilt the vehicle battery. Battery acid could spill out of the open-
ings to release gases and cause corrosion damage.
● Never open the vehicle battery.
● If battery acid splashes on you, immediately rinse your eyes and skin
abundantly with water for several minutes. Then seek medical care imme-
diately.
● If acid is swallowed by mistake, consult a doctor immediately.

Charging, replacing and connecting or disconnecting the
battery
Charging the battery
The vehicle battery should be charged by a specialised workshop only, as
batteries using special technology have been installed and they must be
charged in a controlled environment ⇒ 
. SEAT recommends visiting a
Technical Service.
Replacing a vehicle battery
The battery has been developed to suit the conditions of its location and
has special safety features. If the battery must be replaced, consult a Tech-
nical Service for information on electromagnetic compatibility, the size and
maintenance, performance and safety requirements of the new battery in
your vehicle before you purchase one. SEAT recommends you have the bat-
tery replaced by a Technical Service.
Use only maintenance-free genuine batteries conforming to TL 825 06 and
VW 7 50 73 Standards. These standards must be dated April 2008 or later. Start-Stop systems (
⇒ page 198) are equipped with a special battery. There-
fore, it must only be replaced with a battery of the same specifications.
Disconnecting the vehicle's battery
If you must disconnect the battery from the electrical system, please note
the following:
● Switch off the ignition and all electrical equipment.
● The vehicle must be unlocked before disconnecting the battery, other-
wise 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, the ignition and
electric devices.
● First reconnect the positive cable and then the negative ⇒ 
.
Different control lamps may light up after connecting the battery and switch-
ing the ignition 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 57. Respect
the maximum service intervals permitted ⇒ Booklet Maintenance Pro-
gramme.
Automatic consumer disconnection
The intelligent vehicle electrical system automatically implements a range
of measures to prevent the battery from discharging when high demands
are made on it: 
Safety FirstOperating instructionsPractical tipsTechnical Specifications

296Checking and refilling levels
● the idling speed is increased so that the alternator provides more elec-
tricity.
● where necessary, the power of the most powerful consumers is reduced
or even completely disconnected.
● On starting the engine, the power supply from the 12-volt sockets and
the cigarette 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 consumers with the engine switched off.
● If the auxiliary heater is running ⇒ page 165.
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 properties, specifications and size correspond to the stand-
ard battery. The specifications are indicated on the battery case.
WARNING
A highly explosive mixture of gases is released 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 al-
so freeze at temperatures close to 0 °C (+32 °F).
WARNING (Continued)
● Always replace a battery which has frozen.
● Battery cables not correctly connected may cause a short circuit. Re-
connect first the positive cable and then the negative cable.
CAUTION
● Never disconnect the battery if the ignition is switched on or if the en-
gine is running. This could damage the electrical system or electronic com-
ponents.
● Never plug accessories supply current, such as solar panels or a battery
charger, to the 12-volt sockets or the cigarette lighter. This could damage
the vehicle's electrical system.
For the sake of the environment
● Dispose of the battery in an environment-friendly manner. Batteries con-
tain toxic substances such as sulphuric acid and lead.
● Battery acid can contaminate the environment. Collect any spilt service
fluids and allow a dispose of them correctly. 

304Wheels and tyres
Driving style : driving round bends fast or sudden acceleration or braking
speed up the wear of tyres. When the driving style is normal, if the tyres
wear too quickly, have the running gear settings checked at a Technical
Service.
Wheel run-out: The wheels on new vehicles are balanced. However, certain
circumstances may lead to imbalance (run-out), which is detected as vibra-
tions in the steering wheel. Run-out leads to wear of the steering and sus-
pension. In the event of run out, the wheels should be balanced again.
When a new wheel is fitted, it should be balanced again.
Running gear settings : an incorrectly positioned running gear increases the
wear of tyres and affects your safety while driving. If tyres wear too quickly,
have the wheel alignment checked at a specialised workshop.
WARNING
If you notice unusual vibration or the car pulls to one side while driving,
this may indicate that one of the tyres is damaged.
● Reduce speed immediately and stop, while observing the highway
code.
● Check the wheels and tyres for damage.
● Never carry on driving on worn tyres or wheels. Request qualified as-
sistance immediately.
● If there is no visible exterior damage, drive slowly and carefully to the
nearest qualified workshop and have the vehicle checked.

Winter tyres*
In winter conditions winter tyres will considerably improve the vehicle's han-
dling. The design of summer tyres (width, rubber compound, tread pattern)
gives less grip on ice and snow. Winter tyres also improve the vehicle brak-
ing performance, reducing the braking distance in winter weather. SEAT rec- ommend that winter tyres be fitted to the vehicle at temperatures below
+7 °C (+45 °F).
The performance of winter tyres is much reduced if the
tyre tread is worn be-
low 4 mm (1/16 inch). The age of the tyre is another factor affecting per-
formance, regardless of the depth of the tyre tread.
Please observe the following when using winter tyres:
● Observe legal requirements in each country.
● Winter tyres must be fitted on all four wheels.
● Only use winter tyres in wintery weather conditions.
● Only use winter tyres of the size authorised for the vehicle.
● Only use radial winter tyres of the same type, size (rolling circumference)
and tread pattern.
● Adjust speeds to within the limits indicated (code letter on tyre) ⇒ 
.
Speed limit
A code letter indicating the speed limit is stamped on all winter tyres
⇒ page 307.
In some vehicles, it is possible to set a speed warning in the MFA (multifunc-
tion indicator) menu on the instrument panel ⇒ page 62.
If you use V-rated tyres the speed limits and tyre pressure will be deter-
mined by engine size. Please ask your Technical Service for further informa-
tion on the maximum permitted speed and the required pressures for the
tyres.
All-wheel drive*
Thanks to its all-wheel drive, your car will have plenty of traction in winter
conditions, even with the standard tyres. Nevertheless, SEAT still recom-
mend that winter tyres or all-season tyres should be fitted on all four wheels
when winter road conditions are expected, mainly because this will give a
better braking response. 

310Wheels and tyres
WARNING (Continued)
● Only use suitable tools that are not damaged when changing a wheel.
● Always stop the engine, turn on the electronic parking brake and
place the gear selector lever in position P, for an automatic gearbox, or
engage a gear for a manual gearbox to reduce the risk of the vehicle mov-
ing accidentally.
● Have the tightening torque of the wheel bolts checked as soon as
possible with a reliable torque wrench.

Preparations for changing a wheel
Check list
Before changing a wheel, complete the following operations in the order
given ⇒ 
:
Park the vehicle on an even and solid surface.
Connect the electronic parking brake ⇒ page 185.
Automatic gearbox: Move selector lever to position P ⇒ page 176.
Stop the engine and remove the key from the ignition ⇒ page 172.
Manual gearbox: Select a gear ⇒ page 176.
Have all vehicle occupants get out of the vehicle and wait in a safe
place (for example, behind the safety barrier).
Block the opposite wheel with wedges or a similar object.
When towing a trailer: unhook the trailer from the towing vehicle and
park it correctly.
If the luggage compartment is full: take the baggage out of the vehicle. Take the vehicle tool kit out of the luggage compartment.
Remove the wheel trims ⇒ page 308.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
WARNING
Failure to follow the checklist prepared for your own safety could lead to
accidents and severe injuries.
● Always complete the operations given in the checklist and observe
the general rules of safety.


314Wheels and tyres
Check list
For your own safety and that of other passengers, the following points
should be observed in the order given ⇒ 
:
Select a suitable flat and firm surface for raising the vehicle.
Switch off the engine, engage a gear (manual gearbox) or place the se-
lector lever in position P ⇒ page 176 and turn on the electronic parking
brake ⇒ page 185.
When towing a trailer: unhook the trailer from the towing vehicle and
park it correctly.
Loosen the wheel bolts on the wheel to be changed ⇒ page 311.
Look below the vehicle for the jacking point ⇒ fig. 185 closest to the
tyre which has to be changed.
Raise the jack with the handle until it can be inserted below the jacking
point.
Ensure that the foot of the jack is firmly on the ground and that it is
placed immediately below the lifting point on the vehicle ⇒ fig. 186.
Straighten the jack and continue raising it using the handle until the
claw holds the vertical reinforcement beneath the vehicle ⇒ fig. 186.
Raise the vehicle until the wheel is clear of the ground.
WARNING
If the vehicle is not correctly raised, it could fall off the jack causing seri-
ous injury. Please observe the following rules to minimise the risk of in-
jury:
● You should only use a jack approved by SEAT for your vehicle. Other
jacks, even those approved for other SEAT models, might slip out of
place.
● The ground should be firm and flat. If the ground is sloped or soft
then the vehicle could slip and fall off the jack. If necessary, support the
jack on a wide solid base.
1.
2.
3.
4.
5.
6.
7.
8.
9.
WARNING (Continued)
● If the ground is slippery (for example, on tiles), place a non-slip sur-
face (for example a floor mat) beneath the jack to avoid slipping.
● Only fit the jack at the prescribed jacking points. The claw of the jack
should grip the reinforcement nerve on the underbody ⇒ fig. 186.
● You should never have any limbs beneath a raised vehicle which is
only supported by a jack.
● If you have to work underneath the vehicle, you must use suitable
stands additionally to support the vehicle, there is a risk of accident!.
● Never raise the vehicle if it is tilting to one side or the engine is run-
ning.
● Never start the engine when the vehicle is raised. The vehicle may
come loose from the jack due to the engine vibrations.
WARNING
Failure to follow the checklist prepared for your own safety could lead to
accidents and severe injuries.
● Always complete the operations given in the checklist and observe
the general rules of safety.


317
If and when
Move the selector lever to its intermediate position or to P ⇒ page 176.
Stop the engine and remove the key from the ignition ⇒ page 172.
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 ve-
hicle 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 regarding the use of hazard warn-
ing lights.
If the hazard warning lights are not working, you must use an alternative
method of drawing attention to your vehicle. This method must comply with
traffic legislation.
WARNING
Failure to follow the checklist prepared for your own safety could lead to
accidents and severe injuries.
● Always complete the operations given in the checklist and observe
the general rules of safety.
4.
5.
6.
7.
8.
9.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 much time (even with the ignition turned off).
● For some vehicles, the brake lights will blink when braking suddenly at
speeds of approximately 80 km/h to warn vehicles behind. If braking con-
tinues, then the hazard warning lights will automatically be turned on at the
speed of less than approximately 10 km an hour. The brake lights remain lit.
Upon accelerating, the hazard warning lights will be automatically turned
off. 
Safety FirstOperating instructionsPractical tipsTechnical Specifications

326If and when
Fuses
Introduction
Due to the constant update of vehicles, fuse assignments depending on
equipment and the use of the same fuse for various electrical components,
at the time of printing this manual it is not possible to provide an up-to-date
summary of the electrical components fuse positions. For detailed informa-
tion about the fuse positions, please consult a Technical Service.
In general, a fuse can be assigned to various electrical components. Like-
wise, an electrical component can be protected by several fuses.
Only replace fuses when the cause of the problem has been solved. If a
newly inserted fuse blows after a short time, you must have the electrical
system checked by a qualified dealership as soon as possible.
Additional information and warnings:
● Working in the engine compartment ⇒ page 279
WARNING
The high voltages in the electrical system can give serious electrical
shocks, causing burns and even death!
● Never touch the electrical wiring of the ignition system.
● Take care not to cause short circuits in the electrical system.
WARNING
Using unsuitable fuses, repairing fuses or bridging a current circuit with-
out fuses can cause a fire and serious injury.
● Never use a fuse with a higher value. Only replace fuses with a fuse of
the same amperage (same colour and markings) and size.
● Never repair a fuse.
● Never replace a fuse by a metal strip, staple or similar.
CAUTION
● To avoid damage to the vehicles electric system, before replacing a fuse
turn off the ignition, the lights and all electrical elements and remove the
keys from the ignition.
● If you replace a fuse with higher-rating fuse, you could cause damage to
another part of the electrical system.
● Protect the fuse boxes when open to avoid the entry of dust or humidity.
Dirt and humidity inside fuse boxes can cause damage to the electrical sys-
tem.
Note
● One single consumer could have more than one fuse.
● Several consumers could run over one single fuse. 

331
If and when
Several warning and control lamps should light up for a few seconds when
the ignition is switched. This signals that the lamp is working properly. They
will switch off after a few seconds.
Checking the bulbs of a trailer
For vehicles with the factory fitted trailer system, certain trailer lights are al-
so controlled if the socket is correctly connected.
A fault on a trailer turn indicator is indicated on the instrument panel by the
indicator blinking twice as fast (  or ) ⇒ page 95.
● General fault of all indicators on one side.
● Fault in one tail light (on some models, also the registration light).
● Fault in two brake lights.
WARNING
If the warning lamps and messages are ignored, 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 warning lamps and text messages when they appear
may result in faults in the vehicle.
Note
A fault in the LED on the tail lights will not be indicated. However, if the fault
affects all the LEDs then this will be indicated by the indicator . Information for replacing bulbs
Checklist
To replace a bulb, carry out the following operations always in the order giv-
en ⇒ 
:
Park the vehicle a safe distance from traffic and on suitable ground.
Connect the electronic parking brake ⇒ page 185.
Turn the light switch to position 0 ⇒ page 95.
Move the gear lever into the neutral position ⇒ page 95.
Automatic gearbox: Move selector lever to position P ⇒ page 176.
Stop the engine and remove the key from the ignition ⇒ page 172.
Manual gearbox: Select a gear ⇒ page 176.
Wait until all of the passenger compartment lights are turned off
⇒ page 95.
Allow the corresponding bulb to cool. Visually inspect fuses to see if any are blown ⇒ page 326.
Replace the bulb according to the instructions ⇒ 
. Bulbs should only
be replaced by new identical models. Bulb information is displayed on
the bulb socket or on the bulb itself.
In general, never touch the bulb glass directly. The heat of the bulb
would cause the fingerprint to evaporate and condense on the reflector.
This will impair the brightness of the headlight.
Check if the new bulb is working. If the bulb is not working, it may not
have been correctly fitted, it could be damaged or the connector may
not be correctly connected.
Every time a bulb for the headlights is replaced, visit a specialised
workshop to check the headlights. 
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
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Safety FirstOperating instructionsPractical tipsTechnical Specifications