Driving and the environment255
Safety FirstOperating instructionsPractical tipsTe c h n i c a l D a t a
Engine management and exhaust gas
purification system
Introduction
Additional information and warnings:
xChanging gear Ÿpage 201
xRefuelling Ÿpage 293
xFuel Ÿpage 297
xEngine oil Ÿpage 309
xVehicle battery Ÿpage 318
xInformation stored in the control units Ÿpage 285
xTow-starting and towing away Ÿpage 375
WARNING
The components of the exhaust system reach very high temperatures. This
could cause a fire.
xAlways park your vehicle so that no part of the exhaust system can
come in contact with flammable materials (such as dried grass).
xDo not apply additional underseal or anti-corrosion coatings to the
exhaust pipes, catalytic converter, heat shields or the diesel particulate
filter.
Warning lamps
lights upPossible causeSolution
% 0 #Fault in engine management
(Electronic Power Control).Take the vehicle to a qualified
workshop as soon as possible
and have the engine checked.
DPre-heating a diesel engine
before starting the engine. Ÿpage 195
BFault in catalytic converter.
You should reduce speed accord-
ingly. Drive carefully until you
reach the next qualified work-
shop. Have the engine checked
there.
¬Diesel particulate filter
blocked
Drive for 15 minutes in 4th gear
(manual gearbox), or in D (auto-
matic gearbox) at a minimum
speed of 70 km/h (45 mph).
Observe speed limits Ÿ.
If the warning lamp remains lit
up, take the vehicle to a quali-
fied workshop Ÿpage 256.
flashesPossible causeSolution
DFault in the engine manage-
ment (diesel engines).Take the vehicle to a qualified
workshop as soon as possible
and have the engine checked.
B
Combustion fault which could
damage the catalytic con-
verter.You should reduce speed accord-
ingly. Drive carefully until you
reach the next qualified work-
shop. Have the engine checked
there.
Driving and the environment 256
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.
WARNING
Observe traffic regulations when cleaning the diesel particulate filter while
driving.
xOnly carry on driving if visibility, weather, road and traffic conditions so
permit.
xNever endanger your safety or that of other road users.
Caution
Always pay attention to any lit lamps and to the corresponding descriptions
and instructions to avoid damage to the vehicle.
Note
While the indicators ¬, B or % 0 # remain lit, there may be engine problems,
fuel consumption may be greater and the engine may lose power
Catalytic converter
The catalytic converter permits the subsequent treatment of the exhaust
gases thus reducing contaminating gas emissions. To ensure a longer
working life for the exhaust system and catalytic converter in a petrol engine:
xAlways use unleaded petrol.
xNever run the tank completely dry.
xDo not top up with too much engine oil Ÿpage 309.
xDo not tow-start the vehicle; use the starter cables Ÿpage 371.If you should notice misfiring, uneven running or loss of power when the car
is moving, reduce speed immediately. Have the car inspected by a qualified
workshop. If this happens, unburnt fuel can enter the exhaust system and
escape into the atmosphere. The catalytic converter can also be damaged by
overheating.
For the sake of the environment
Even when the emission control system is working perfectly, there may be a
smell of sulphur from the exhaust gas under some conditions. This depends
on the sulphur content of the fuel being used.
Diesel particulate filter
The diesel particulate filter removes soot particulates from the exhaust gas.
The filter retains these particulates and burns them. To assist the combustion
process, SEAT recommends you avoid frequent short trips.
xAlways use diesel with a low sulphur content Ÿpage 297.
xNever use petrol or fuel oil.
xNever use biodiesel. However, a blend prepared by the diesel manufac-
turer containing biodiesel within the limits established by the EN 590
standard may be used Ÿpage 297.
xNever run the tank completely dry.
xDo not top up with too much engine oil Ÿpage 309.
xDo not tow-start the vehicle; use the starter cables Ÿpage 371.
In order to reduce blocking of the diesel particulate filter, some vehicles with
an automatic gearbox may increase the engine speed slightly to automati-
cally start cleaning the diesel particulate filter. The warning lamp will not light
up in this case
¬.