Dpf full JAGUAR XF 2009 1.G Owners Manual

135
Starting the engine

DIESEL PARTICULATE FILTER (DPF)
The Diesel Particulate Filter (DPF) forms part of
the emissions reduction system fitted to your
vehicle. The DPF will remove a high proportion
of the harmful car bon microspheres (soot)
before they leave the exhaust. It achieves this
by filtering out the particles, which are then
stored until they are burnt away and the filter is
emptied.
Regeneration
Unlike a normal filter which requires periodic
replacement, the DPF has been designed to
regenerate, or clean itself, to maintain
operating efficiency. Th is regeneration process
takes place automatically in most cases.
However, some unfavourable driving
conditions may mean th at the regeneration
process must be initiate d deliberately by the
driver.
Warning indicators and messages
If regeneration cannot be achieved
automatically by the system, due to short
journeys for example, the driver will be notified
via a warning indicator or message.
DPF FULL
If this message appears in the message centre
(with a red backlight), the vehicle should be
taken to your Dealer/Authorised Repairer as
soon as possible.
DPF FULL SEE HANDBOOK
If this message appears in the message centre
(with an amber backlight), the driver should
carry out the DPF regene ration procedure that
follows, as soon as possible.
CAUTION
The regeneration procedure produces
high temperatures in the DPF. Heat can
be felt radiating from beneath the vehicle,
which is normal and not a cause for concern.
However, the vehicle should not be parked
over combustible material, particularly during
dry weather. The heat generated could be
sufficient to start a fire when in close proximity
to combustible material such as long dry
grass, paper etc.
CAUTION
Failure to take the appropriate action
when a warning message appears, may
result in damage to the engine and DPF
system, increased vehicle emissions and
costly repairs.

Starting the engine
136

Regeneration procedure
If the warning DPF FULL SEE HANDBOOK
appears in the message centre, carry out the
following procedure as soon as possible.
Note: At all times during this procedure you
should observe all releva nt speed limits, laws
and regulations. Always ta ke account of traffic
and weather conditions and drive with
consideration for other road users.
1. Drive the vehicle until the engine reaches
normal operating temp erature. The engine
should not be left idli ng to achieve working
temperature.
2. Drive the vehicle for a further twenty
minutes, keeping the vehicle at a steady
speed between 75 km/h (45 mph) and
120 km/h (75 mph).
Keeping a constant speed enables the DPF
to regenerate more efficiently. It is
therefore recommended that Cruise
control is used to achieve this, if possible.
3. If regeneration is su ccessful, the warning
message will extinguish. If the message
remains, repeat the process.
If the warning message fa ils to extinguish after
60 minutes of driving, contact your Dealer/
Authorised Repairer for assistance.