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Catalytic converter
Please refer to
and
at the start of the chapter on page 148.
Observe the following information to help ensure
the long-term functionality of the exhaust sys-
tem and the catalytic converter in the petrol en-
gine:
– Only use fuel that has been approved for the
vehicle
page 147.
→
– Do not run the fuel tank empty
– Do not overfill engine oil
– Do not tow-start the vehicle. Use jumper ca-
bles for emergency starting
If you notice misfiring, loss of power or uneven
running when driving, reduce speed immediately
and have the vehicle checked by a correspond-
ingly qualified workshop
→
unburned fuel can enter the exhaust system and
escape into the atmosphere. The catalytic con-
verter can also be damaged by overheating.
The emissions may have a sulphur-like
smell even if the emission purification sys-
tem is working properly.
Particulate filter
Please refer to
and
at the start of the chapter on page 148.
Function
To comply with national regulations on vehicle
emissions, certain vehicle models are equipped
with particulate filters in their emission purifica-
tion systems. These filters are designed to cap-
ture fine carbon particles from the exhaust gases,
thereby reducing atmospheric pollution.
In order to maintain optimal particulate filter
performance, engines equipped with a particu-
late filter should be used in conjunction with
low-ash engine oil
page 169 to ensure the
→
proper functioning of the filter.
1)
Regeneration: The process of removing carbon particles from the particulate filter through technical means to restore its normal op-
eration.
on page 145 and
page 148.
→
page 171.
→
page 158.
→
page 150. Otherwise,
on page 145 and
1)
Regeneration
During vehicle operation, the particulate filter
continuously captures carbon particles from the
exhaust gas and undergoes intermittent combus-
tion at high temperatures.
In normal vehicle operation, the soot in the par-
ticulate filter is burnt off at high temperatures on
a periodic basis. If it is not possible for the filter
to clean itself, for example if the vehicle is only
ever used for short trips, the filter will become
saturated with soot. When the accumulation rea-
ches a certain level, the particulate filter requires
regeneration.
Noises, slight smells, and increased idle speeds
may occur during regeneration. These are not in-
dicative of any malfunction. Additionally, it is
possible to observe the radiator fan continuing to
run during driving or after the engine has been
switched off.
The particulate filter requires
regeneration
When the yellow indicator lamp
engine will initiate active regeneration. It is rec-
ommended to drive at medium to high speeds
for a certain distance to facilitate the swift com-
pletion of the regeneration process by the partic-
ulate filter.
The regeneration process is performed automati-
cally by the engine, and the indicator lamp
should switch off once regeneration is complete.
If the indicator lamp remains lit up or if indicator
lamp appears (some vehicle models may ap-
pear indicator lamp ), go to the nearest quali-
fied workshop. Volkswagen recommends using a
Volkswagen dealership. If not handled in time,
the driving experience may be impacted. This
could potentially cause damage to the particulate
filter.
WARNING
Unintended driving manoeuvres may put other
road users at risk.
● Always adjust your speed and driving style
according to visibility, weather, road, and
traffic conditions.
● Comply with the relevant national and local
traffic regulations.
Fuel and emission control
lights up, the
149
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