DIESEL PARTICULATE
FILTER DPF
(Diesel Particulate Filter)
(where provided)
ENVIRONMENTAL
PROTECTION
A
The devices for curtailing petrol engine
emissions are the following:
C
The Diesel Particulate Filter is a mechan-
ical filter integral with the exhaust system
that physically traps carbon particles pre-
sent in the exhaust gases of Diesel engines.
❒ three-way catalytic converter;
❒ Lambda sensors;
The diesel particulate filter has been
adopted to eliminate particulates almost
totally in compliance with current / future
law regulations. During normal use of the
vehicle, the engine control unit records a
set of data (e.g.: travel time, type of route,
temperatures, etc.) and it will then calcu-
late the amount of particles trapped by the
filter.
❒ fuel evaporation prevention system.
fig. 95
In addition, do not let the engine run, even
for a test, with one or more spark plugs
disconnected.
FUEL TANK PLUG fig. 95
To refuel open the flap A and unscrew the
plug B. The plug is provided with a loss
prevention device C which secures it to
the flap, thus making it impossible to lose.
The devices for curtailing diesel fuel en-
gine emissions are the following:
❒ oxidising catalytic converter;
The plug B is provided with a lock and key.
To access it open the flap A, turn the igni-
tion key anticlockwise and loosen the plug.
Since this filter physically traps particulates,
it shall be cleaned (reclaimed) at regular
intervals by burning carbon particles. The
regeneration procedure is controlled au-
tomatically by the engine control unit ac-
cording to the filter conditions and the
conditions of use of the vehicle.
❒ exhaust gas recirculation system
(E.G.R.);
❒ diesel particulate filter (DPF) (where
provided).
When refuelling, fasten the plug to the de-
vice inside the lid as shown in the figure.
During the regeneration procedure, the
following situations may occur: limited in-
crease of idle speed, activation of electric
fan, limited increase of smoke, high tem-
peratures at the exhaust. These events
must not be considered as a malfunction-
ing: they do not impair vehicle behaviour
and the environment. If the dedicated
message is displayed, refer to section
“Warning lights and messages”.
Do not place free flames or lit
cigarettes near to the fuel
filler: this may pose a risk of
fire. Keep your face away
from the fuel filler to prevent breath-
ing in harmful vapours.
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English 
