Protecting The Environment; Diesel Particulate Filter (Dpf); Diesel Particulate Filter Clogged - Alfa Romeo Brera Owner's Manual

PROTECTING THE
ENVIRONMENT
The devices for curtailing petrol engine
emissions are the following:
❒ three-way catalytic converter;
❒ Lambda sensors;
❒ fuel evaporation system.
In addition, do not let the engine run,
even for a test, with one or more spark
plugs disconnected.
The devices for curtailing diesel fuel en-
gine emissions are the following:
❒ oxidising catalytic converter;
❒ exhaust gas recirculation system
(E.G.R.);

❒ diesel particulate filter (DPF).

WARNING
During normal service
the diesel particulate
filter (DPF) reaches high tem-
peratures. Do not therefore
park the car over inflammable
materials (grass, dry leaves,
pine needles, etc.): fire hazard.
114
DIESEL PARTICULATE FILTER
(DPF)
The Diesel Particulate Filter is a me-
chanical filter, integral with the exhaust
system, that physically traps particulate
present in the exhaust gases of Diesel
engines.
The diesel particular filter has been
adopted to eliminate almost totally par-
ticulates in compliance with current /
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 fil-
ter.
Since this filter physically traps particu-
lates, it shall be cleaned (reclaimed) at
regular intervals by burning carbon par-
ticles. Reclaiming procedure is controlled
automatically by the engine control unit
according to the filter conditions and the
conditions of use of the car. During re-
claiming the following phenomena could
take place: idling slight increase, fan ac-
tivation, slight smoke increase, high ex-
haust temperatures. These situations
shall not be considered as faults and they
do not affect car performance and envi-
ronment.
Diesel particulate filter
clogged
When the Diesel particulate filter is
clogged, the display will show symbol
h and the dedicated message. In
this case keep the car running until sym-
bol h + and message turn off.