STARTING AND DRIVING
Diesel particulate filter
Diesel-driven cars are equipped with a particu-
late filter, which results in more efficient emis-
sion control.
The particles in the exhaust gases are collected
in the filter during normal driving. So-called
"regeneration" is started in order to burn away
the particles and empty the filter. This requires
the engine to have reached normal operating
temperature.
Regeneration of the particulate filter is automatic
and normally takes 10-20 minutes. It may take a
little longer at a low average speed. Fuel con-
sumption may increase slightly during regenera-
tion.
Regeneration in cold weather
If the car is frequently driven short distances in
cold weather then the engine does not reach
normal operating temperature. This means that
regeneration of the diesel particulate filter does
not take place and the filter is not emptied.
When the filter has become approx. 80% full of
particles, a yellow warning triangle illuminates,
Particulate filter full See
and the message
Owner's manual
is shown in the driver display.
Start regeneration of the filter by driving the car
until the engine reaches normal operating tem-
perature, preferably on a main road or motorway.
See the section "Drive mode ECO".
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416
The car should then be driven for approximately
20 minutes more.
NOTE
The following may arise during regeneration:
•
a smaller reduction of engine power may
be noticed temporarily
•
fuel consumption may increase temporar-
ily
•
a smell of burning may arise.
When regeneration is complete the warning text
is cleared automatically.
Use the parking heater* in cold weather - the
engine then reaches normal operating tempera-
ture more quickly.
IMPORTANT
If the filter is completely filled with particles, it
may be difficult to start the engine and the fil-
ter is non-functional. Then there is a risk that
the filter will need to be replaced.
Related information
•
Diesel (p. 414)
Driving economically
Drive economically and eco-consciously by driv-
ing smoothly, thinking ahead, and adjusting your
driving style and speed to the prevailing condi-
tions.
•
For lowest fuel consumption, activate drive
mode ECO.
•
13
Use the Eco Coast
freewheel function -
engine braking will cease and the car's
kinetic energy can be used to freewheel for
longer distances.
* Option/accessory, for more information, see Introduction.