Seat LEON 2024 - Catalytic Converter; Particulate Filter

Fuel and exhaust gas cleaning
323
Engine management and emissions control system
1)
Except 2.0l TSI petrol engines.
WARNING
Do not apply wax underneath the vehicle
around the area of the exhaust system: Fire
hazard!
Catalytic converter
To maintain the useful life of the catalytic
converter
●
Only use unleaded petrol with petrol en-
gines.
●
Never run the fuel tank dry.
●
When changing or adding engine oil, do not
exceed the necessary amount ›››page348,
Checking and topping up the engine oil
level.
●
Never tow the vehicle to start it, use jump
leads if necessary ›››page327.
If you notice misfiring, uneven running or loss of
power when the car is moving, have the vehicle
inspected by a specialised workshop. In gen-
eral, the emissions warning lamp will light up
when any of these symptoms occur. If this hap-
pens, any unburnt fuel can enter the exhaust
system and escape into the atmosphere. The
catalytic converter can also be damaged by
overheating.
NOTICE
Never run the fuel tank completely dry be-
cause an irregular fuel supply can cause ig-
nition faults. This allows unburnt fuel to enter
the exhaust system, which could cause over-
heating and damage the catalytic converter.
For the sake of the environment
Even when the emission control system is
working perfectly, there may be a smell of
sulphur from the gases on occasions. This
depends on the sulphur content of the fuel
used. This can quite often be avoided by
changing to another brand of fuel.
Particulate filter
Valid for: vehicles with petrol or diesel particu-
late filters
The particulate filter eliminates most of the
soot from the exhaust gas system. Under nor-
mal driving conditions the filter cleans itself.
If the filter does not clean itself (e.g. if short
journeys are made continuously), it becomes
blocked with soot and the following indication is
displayed to the driver:
Particulate filter: cleaned while the vehi-
cle is moving. See Manual.
The particulate filter needs cleaning (regenera-
tion).
Regeneration of the petrol and diesel partic-
ulate filter
1)
Requirements for the regeneration journey: the
engine must be at operating temperature.
●
Drive at a speed of between 50-120km/h
(31-75mph). This increases the temperature
and burns the soot in the filter ›››page324.
●
Consider the legal speed limits as well as the
recommended gears.
●
End the regeneration journey once the con-
trol warning lamp has gone out.
If the warning lamp stays on after 30 minutes
of running in regeneration mode, have a speci-
alised workshop repair the fault.
Regeneration of the particulate filter (only
for 2.0l TSI petrol engines)
Requirements for the regeneration journey: the
engine must be at operating temperature.
●
Drive at a speed of at least 80 km/h
›››page324.
●
Completely remove your foot from the accel-
erator pedal for a few seconds to let the vehicle
roll with the gear engaged.
●
Consider the legal speed limits as well as the
recommended gears.
●
Repeat this procedure (accelerate and let
roll) until the control lamp turns o.