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SWITCHING OFF THE
ENGINE
Vehicles with a turbocharger
CAUTION
Do not switch the engine off when it
is running at high speed. If you do,
the turbocharger will continue
running after the engine oil pressure has
dropped to zero. This will lead to
premature turbocharger bearing wear.
Release the accelerator pedal. Wait until
the engine has reached idle speed and
then switch it off.
DIESEL PARTICULATE
FILTER (DPF)
The DPF forms part of the emissions
reduction systems fitted to your vehicle.
It filters harmful diesel particulates (soot)
from the exhaust gas.
Regeneration
WARNING
Do not park or idle your vehicle over
dry leaves or dry grass or other
combustible material. The
regeneration process requires very high
exhaust gas temperatures and the
exhaust will radiate a considerable
amount of heat during and after
regeneration, and after you have switched
the engine off. This is a potential fire
hazard.
Starting the engine
73
Unlike a normal filter which requires
periodic replacement, the DPF has been
designed to regenerate, or clean itself to
maintain operating efficiency. The
regeneration process takes place
automatically. However, some driving
conditions mean that you may need to
support the regeneration process.
If you drive only short distances or your
journeys contain frequent stopping and
starting, occasional trips with the following
conditions could assist the regeneration
process:
•
Drive your vehicle, preferably on a
main road or motorway, for up to 20
minutes avoiding prolonged idling, but
always observing speed limits and
road conditions.
•
Do not switch off the ignition.
•
Use a lower gear than normal to
maintain a higher engine speed during
this journey, where appropriate.
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