Function
The particulate filter is dependent on the vehicle equipment and filters out soot particles in the exhaust gas.
Regeneration
In normal vehicle operation, the filter cleans itself. 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. The diesel particulate filter requires cleaning (regeneration).
Noises, slight smells and increased engine speeds may occur during regeneration. The radiator fan may run on while the vehicle is
moving or when the engine has been switched off.
To assist the regeneration of the particulate filter, Volkswagen recommends that you avoid making frequent short journeys.
The soot in the particulate filter is burnt off at high temperatures on a periodic basis. During the periodic regeneration process,
the yellow indicator lamp
does not light up.
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