Diesel Particulate Filter; Switching Off The Engine - Ford C-MAX Owner's Manual

Starting and Stopping the Engine
Stopping the engine when the
vehicle is moving
WARNING
Switching off the engine when the
vehicle is still moving will result in a
loss of brake and steering assistance.
The steering will not be locked, but higher
effort will be required. When the ignition is
switched off some electrical circuits,
warning lamps and indicators may also be
OFF.
Press and hold the button or press twice
within two seconds.

DIESEL PARTICULATE FILTER

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, dry grass or other
combustible materials. The DPF
regeneration process creates very high
exhaust gas temperatures and the exhaust
will radiate a considerable amount of heat
during and after DPF regeneration, and
after you have switched the engine off.
This is a potential fire hazard.
CAUTION
Avoid running out of fuel.
Note: During regeneration at low speed or
engine idle, you may smell a hot metallic
odor and could notice a clicking metallic
sound. This is due to the high temperatures
reached during regeneration and is normal.
C-MAX (CB7)
Note: After you have switched your engine
off the fans may continue to run for a short
period of time.
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, where there is increased
acceleration and deceleration, occasional
trips with the following conditions will
assist the regeneration process:
• Drive your vehicle at a constant speed,
preferably on a main road or highway,
for up to 20 minutes.
• Avoid prolonged idling and always
observe 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.

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.
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