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DIESEL PARTICULATE
FILTER (DPF)
(2.4 JTD 20V CAE version)
The Diesel Particulate Filter is a me-
chanical filter, integral with the ex-
haust system, that physically traps
particulate present in the exhaust
gases of Diesel engines.
The diesel particular filter has been
adopted to eliminate almost totally
particulates in compliance with cur-
rent / future law regulations.
During normal use of the car, the
engine control unit records a set of
data (e.g.: travel time, type of route,
temperatures, etc.) and it will then
calculate how much particulates has
been trapped by the filter.
Since this filter physically traps par-
ticulates, it shall be cleaned (re-
claimed) at regular intervals by burn-
ing carbon particles. Reclaiming pro-
cedure is controlled automatically by
the engine control unit according to
the filter conditions and the condi-
tions of use of the car. During re-
claiming the following phenomena
could take place: idling slight in-
crease, fan activation, slight smoke in-
crease, high exhaust temperatures.
These situations shall not be consid-
ered as faults and they do not affect
car performance and environment.
Diesel particulate filter clogged
When the Diesel particulate filter is
clogged, the instrument panel warn-
ing light è will turn on (on certain
versions symbol è is displayed). In
this case keep the car running until
warning light è (or symbol è) turns
off.
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