2012 Seat Exeo check engine light

197
Driving and the environment
Avoid idling
It is worthwhile switching off the engine when waiting in a traffic jam, at lev-
el crossings or at traffic lights with a long red phase. The fuel saved after
only 30 - 40 seconds is greater than the amount of fuel needed to restart
the engine.
The engine takes a long time to warm up when it is idling. Mechanical wear
and pollutant emissions are also especially high during this initial warm-up
phase. It is therefore best to drive off immediately after starting the engine.
Avoid running the engine at high speed.
Periodic maintenance
Periodic maintenance work guarantees that, before beginning a journey,
you will not consume more than the required amount of fuel. A well-serviced
engine gives you the benefit of improved fuel efficiency as well as maxi-
mum reliability and an enhanced resale value.
A badly serviced engine can consume up to 10% more fuel than necessary.
Avoid short journeys
To reduce the consumption and emission of polluting gases, the engine and
the exhaust filtration systems should reach the optimum service tempera-
ture.
With the engine cold, fuel consumption is proportionally higher. The engine
does not warm up and fuel consumption does not normalise until having
driven approximately four kilometres. This is why we recommend avoiding
short trips whenever possible.
Maintain the correct tyre pressures
Bear in mind that keeping the tyres at an adequate pressure saves fuel. If
the tyre pressure is just one bar too low, fuel consumption can increase by
as much as 5%. Due to the greater rolling resistance, under-inflation also
increases tyre wear and impairs handling.
The tyre pressures should always be checked when the tyres are cold.Do not use
winter tyres all year round as they increase fuel consumption by
up to 10%.
Avoid unnecessary weight
Every kilo of extra weight will put up the fuel consumption, so it is worth
checking the luggage compartment occasionally to make sure that no un-
necessary loads are being transported.
A roof rack is often left in place for the sake of convenience, even when it is
no longer needed. At a speed of 100-120 km/h your vehicle will use about
12% more fuel as a result of the extra wind resistance caused by the roof
rack even when it is not in use.
Save electricity
The engine activates the alternator, which produces electricity. With the
need for electricity, fuel consumption is also increased. Because of this, al-
ways turn off electrical components when you do not need them. Examples
of components that use a lot of electricity are: the fan at high speeds, the
rear window heating or the seat heaters*.
Note
● If you vehicle has Start-Stop, it is not recommended to disconnect this
function.
● It is recommended to close the windows when driving at more than
60 km/h
● Do not drive with your foot resting on the clutch pedal, as the pressure
can make the plate spin, more fuel will be used and it can burn the clutch
plate lining, causing a serious fault.
● Do not hold the vehicle on a hill with the clutch, use the foot brake or
hand brake, using the latter to start. The fuel consumption will be lower and
you will prevent the clutch plate from being damaged.
● On descents, use the engine brake, changing to the gear that is more
suitable for the slope. The fuel consumption will be lower and the brakes
will not suffer. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

200Trailer towing
Where possible, operate the trailer with the maximum permitted drawbar
load on the ball joint of the towing bracket, but do not exceed the specified
limit.
Tyre pressure
Check the tyre pressures on your vehicle, and adjust for “full load” condi-
tions (refer to the sticker listing the tyre pressures on the door pillar). It may
also be necessary to adjust the tyre pressures on the trailer according to the
recommendations of the trailer manufacturer.
Exterior mirrors
Check whether you can see enough of the road behind the trailer with the
standard mirrors. If this is not the case you should have additional mirrors
fitted. The two exterior mirrors should be fitted on folding arms. Adjust the
mirrors to give sufficient rear vision.
Headlights
Before starting a journey, check the headlight beam settings with the trailer
hitched up. If necessary, alter the height of the headlight beams by means
of the headlight range control. See ⇒ page 119.
Power supply
When you remove the ignition key, the power supply to the trailer is inter-
rupted.
Removable ball joint coupling
Vehicles with a factory-fitted towing bracket are equipped with a removable
ball joint coupling. This is stored in the spare wheel well in the luggage
compartment together with the necessary fitting instructions.
Note
If you frequently tow, we recommend you also have the vehicle serviced be-
tween services. Notes on towing
Towing a trailer involves additional attention by the driver.
Weight distribution
The weight distribution of a loaded trailer with an unladen vehicle is very
unfavourable. However, if this cannot be avoided, drive extra slow to allow
for the unbalanced weight distribution.
Speed
The stability of the vehicle and trailer is reduced with increasing speed.
Therefore, it is advisable not to drive at the maximum permissible speed in
unfavourable road, weather or wind conditions. This especially applies
when driving downhill.
You should always reduce speed immediately if the trailer shows the slight-
est sign of swaying. Never try to stabilise the trailer by accelerating.
Anticipate hazards and brake in good time. If towing a trailer with an inertia
brake, first brake gently and then harder. This will prevent brake tapping by
the trailer wheels when they lock. Select a low gear in due course before go-
ing down a steep downhill. This enables you to use the engine braking to
slow down the vehicle.
Swaying and pitching can be reduced by stabiliser aids. We recommend
having stabiliser aids installed when towing trailers with a high trailer
weight. They can be purchased and installed at a Technical Service.
Reheating
When climbing long hills in hot weather with the engine running fast in low
gear, you should keep an eye on the coolant temperature gauge ⇒ page 60.
Reduce speed immediately if the needle moves to the right end of the scale.
If the temperature warning lamp  in the instrument panel should start
flashing, stop the vehicle and let the engine cool down by running it at
idling speed for a few minutes. 

216Vehicle maintenance and cleaning
WARNING
Vehicle care products may be toxic and hazardous. Using unsuitable car-
care products or, using them in the wrong way, may cause accidents, se-
rious injury, burns or intoxication.
● Keep your car-care products in their original containers.
● Read the instructions.
● Never keep car-care products in empty food containers, bottles or
other similar containers, other people may confuse them.
● Keep all car-care products out of the reach of children.
● Some products may give off harmful vapours during use. Therefore,
they should be used outdoors in well-ventilated places.
● Never use fuel, turpentine, engine oil, nail-varnish remover or any
other volatile product for washing, maintenance or cleaning. These are
toxic and highly flammable.
WARNING
Unsuitable maintenance and cleaning of vehicle components may impair
proper operation of safety equipment and cause serious injury.
● Maintain and clean vehicle components according to the manufactur-
er's instructions.
● Only use approved or recommended cleaning products.
CAUTION
● Cleaning products which contain solvents have a corrosive effect and
may damage the material irreparably.
● Stains and dirt containing aggressive substances or solvents attack the
material and may damage it irreparably, even when they are cleaned quick-
ly. ●
Dirt and stains should not be allowed to dry and should be cleaned as
quickly as possible.
● In the case of stubborn stains, take the vehicle to a specialised work-
shop to avoid damage. 
Treating your upholstery
Checklist
To treat and maintain your seat upholstery, keep the following in mind ⇒ 
:
 Before entering the vehicle, close any velcro fasteners that might
snag on the upholstery or trim fabric. Any open velcro fasteners may
damage the trim or upholstery fabrics.
 To prevent damage, avoid direct contact between sharp decorative
objects and the upholstery and trim fabrics. Decorative objects in-
clude zips, rivets and rhinestones on clothing and belts.
 From time to time, clean the dust that gathers in the perforations,
folds and seams so that the surfaces of the seats are not damaged
by its abrasive effect.
 Make sure clothes are colour-fast to avoid them running and staining
the upholstery. This is especially important if the upholstery is light
in colour.
CAUTION
If you ignore this checklist, which is important for maintaining your seat up-
holstery, the fabric may be damaged or stained.
● Consult the checklist and carry out the operations it describes.
Note
SEAT recommends you take the vehicle to a specialised workshop to treat
any stains on the upholstery caused by the discolouration of clothing. 

227
Checking and refilling levels
Opening the bonnet
Fig. 168 Release catch
under the bonnet
Before opening the bonnet make sure that the windscreen wiper
arms are not lifted away from the glass. Otherwise the paint may
be damaged.
– Lift the bonnet slightly ⇒ 
.
– Press the release catch under the bonnet upwards ⇒ Fig. 168.
This will release the arrester hook under the bonnet.
– Open the bonnet.
The bonnet is held in position by a gas-filled strut.
WARNING
Never open the bonnet if you see steam or drips of coolant being re-
leased from the engine compartment. Failure to comply could result in
burns. Wait until no steam or coolant can be seen before opening the
bonnet.
 Work in the engine compartment
Extra caution is necessary when working on components in
the engine compartment.
Always be aware of the danger of injury and scalding as well as the risk of
accident or even fire when working in the engine compartment (e.g. when
checking and refilling fluids). Always observe the warnings listed below
and follow all general safety precautions. The engine compartment of the
vehicle is a potentially hazardous area ⇒ 
WARNING
● Switch the engine off.
● Remove the ignition key.
● Apply the handbrake firmly.
● If your vehicle is equipped with a manual gearbox, place the gear lev-
er in neutral. If you are driving an automatic vehicle, place the selector
lever in position P.
● Wait for the engine to cool down.
● Children should not be allowed to approach the engine compartment.
● Never spill liquids used for vehicle operation on the engine compart-
ment, as these may catch fire (e.g. coolant).
● Take care not to cause short circuits in the electrical system, especial-
ly when working on the battery.
● Never touch the radiator fan while the engine is hot, as the fan could
start up suddenly.
● Never open the expansion tank when the engine is hot. The cooling
system is under pressure.
● Protect face, hands and arms from any hot steam or hot coolant fluid
released by covering the cap with a large, thick rag when opening the ex-
pansion tank. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

231
Checking and refilling levels
Topping up the engine oil 
Fig. 170 In the engine
compartment: Engine oil
filler cap
– Unscrew cap  from oil filler opening ⇒ Fig. 233.
– Carefully put in the specified grade of oil ⇒ page 229, adding
0.5 litres at a time.
– After two minutes, check the oil level once again ⇒ page 230.
– Where necessary, add more engine oil.
– Replace the oil filler cap carefully and push the dipstick all the
way in.
WARNING
● When refilling with oil, make sure no oil falls onto hot engine parts.
Failure to comply could result in fire.
● Wash your skin thoroughly if it comes into contact with engine oil.
CAUTION
● The oil level must never be above area a. This could damage the cata-
lytic converter or the engine. Contact a specialised workshop to drain the
engine oil if necessary.
● No additives should be used with engine oil. Any damage caused by the
use of such additives would not be covered by the factory warranty.
For the sake of the environment
● Oil must not be disposed of in the drain or on the ground.
● Always observe legal requirements when disposing of empty oil canis-
ters. 
Cooling system Engine coolant specifications
The engine cooling system is supplied from the factory with a specially trea-
ted mixture of water and, at least, 40 % of the additive G 13 (TLVW 774 J).
The engine coolant additive is recognisable by its purple colour. This mix-
ture of water and additive gives the necessary frost protection down to
-25 °C (-13 °F) and protects the light alloy parts of the cooling system
against corrosion. It also prevents scaling and considerably raises the boil-
ing point of the coolant.
To protect the engine cooling system, the percentage of additive must al-
ways be at least 40 %, even in warm climates where anti-freeze protection is
not required.
If greater frost protection is required in very cold climates, the proportion of
additive can be increased. However, the percentage of additive should not
exceed 60 %, as this would reduce the frost protection and, in turn, de-
crease the cooling capacity. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

232Checking and refilling levels
When the coolant is topped up, use a mixture of distilled water and, at
least, 40 % of the G 13 or G 12 plus-plus (TL-VW 774 G) additive (both are
purple) to obtain an optimum anticorrosion protection ⇒ 
. The mixture of
G 13 with G 12 plus (TL-VW 774 F), G 12 (red) or G 11 (green-blue) engine
coolants will significantly reduce the anticorrosion protection and should,
therefore be avoided ⇒ 
.
WARNING
If there is not enough anti-freeze in the coolant system, the engine may
fail leading to serious damage.
● Please make sure that the percentage of additive is correct with re-
spect to the lowest expected ambient temperature in the zone in which
the vehicle is to be used.
● When the outside temperature is very low, the coolant could freeze
and the vehicle would be immobilised. In this case, the heating would
not work either and inadequately dressed passengers could die of cold.
CAUTION
The original additives should never be mixed with coolants which are not
approved by SEAT. Otherwise, you run the risk of causing severe damage to
the engine and the engine cooling system.
● If the fluid in the expansion tank is not purple but is, for example,
brown, this indicates that the G 13 additive has been mixed with an inade-
quate coolant. The coolant must be changed as soon as possible if this is
the case! This could result in serious faults and engine damage.
For the sake of the environment
Coolants and additives can contaminate the environment. If any fluids are
spilled, they should be collected and correctly disposed of, with respect to
the environment. Checking the coolant level
The coolant level can be checked visually.
Fig. 171 Engine com-
partment: Coolant fluid
deposit
– Switch the ignition off.
– Check the coolant level on coolant fluid expansion tank
⇒ Fig. 171. When the engine is cold, it should be between the
“min” and “max” marks. When the engine is hot, it may be
slightly above the “max” mark.
Its location is shown in the corresponding general overview of the engine
compartment.
The coolant level should be checked with the engine switched off.
The coolant level is monitored by a warning lamp on the instrument panel
display ⇒ page 79. However, we recommend that it should be checked oc-
casionally. 

234Checking and refilling levels
WARNING
When working in the engine compartment be aware that the radiator fan
may start running suddenly, leading to the risk of injury.

Washer fluid and windscreen wiper blades Windscreen washer system
Plain water is not sufficient for the windscreen washer sys-
tem.
Fig. 172 In the engine
compartment: Cap of
windscreen washer fluid
reservoir.
The container for the windscreen washer contains the cleaning fluid for the
windscreen and the headlight washer system*. The container is located in
the engine compartment (front left). The filler cap is marked with the symbol
 ⇒ Fig. 172. The capacity of the container is listed in ⇒ page 296. Plain water on its own is not enough to clean the glass properly. It is there-
fore advisable to add a suitable washer fluid additive (with wax solvent) to
the water. A washer fluid with freeze-resistant additive should be used in
winter.
CAUTION
● Never put radiator antifreeze or other additives into the windscreen
washer fluid.
● Never use washer fluid which contains paint thinners or solvents as it
can damage the paintwork. 

236Checking and refilling levels
WARNING
Do not drive unless you have good visibility through all windows!
● The ignition must not be switched on while the front wiper arms are
in a raised position. The wipers would return to their park position and
damage the paintwork on the bonnet.
● To prevent smearing on the windscreen, the wiper blades should be
cleaned regularly using a window cleaner solution. If the wiper blades
are very dirty (e.g. insects etc.), they should be cleaned using a sponge
or cloth. Failure to do so could result in an accident.
● For safety reasons, the wiper blades should be changed once or twice
a year.
CAUTION
● Damaged or dirty windscreen wipers could scratch the windscreen.
● Never use fuel, nail varnish remover, paint thinner or similar products to
clean the windows. This could damage the windscreen wiper blades.
● Never move the windscreen wiper or windscreen wiper arm manually.
This could cause damage.
● Do not pull the windscreen wipers forward unless they are in the service
position. Otherwise the bonnet could be damaged. Brake fluid
Checking the brake fluid level
The brake fluid level can be checked visually.
Fig. 175 Engine com-
partment: markings on
brake fluid reservoir
The brake fluid level must be between the “Min” and “Max” ⇒ Fig. 175
markings.
The fluid level may drop slightly after a period of time due to the automatic
compensation for brake pad wear. This is quite normal.
However, if the level goes down noticeably in a short time, or drops below
the “Min” mark, there may be a leak in the brake system. If the fluid level in
the reservoir is too low, this will be indicated by the brake warning lamp
⇒  page 71 and
⇒ page 78. If this should happen,
take the vehicle to a spe-
cialised workshop immediately and have the brake system inspected. 