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75
4) When the operation is completely finished, the scan tool will display a
confirmation message. Otherwise, it will display a message to remind
you of a problem. After you exit the diagnosis program, please repair the
problem immediately.
DPF Service
The DPF function allows you to carry out numerous functions to the Diesel
Particulate Filter system without having to send your car to a main dealer.
The tool will manage DPF regeneration, DPF component replacement teach-
in and DPF teach-in after replacing the engine control unit.
ECM monitors driving style and selects a suitable time to employ regeneration.
Cars driven a lot at idling speed and low load will attempt to regenerate earlier
than cars driven more with high load and high speed. In order for regeneration
to take place, a prolonged high exhaust temperature must be obtained.
In the event of the car being driven in such a way that regeneration is not
possible, i.e. frequent short journeys, a diagnostic trouble code will eventually
be registered, DPF light and “Check Engine” indicator comes on. A service
regeneration can be requested in the workshop, using the diagnostic tool.
Before carrying out a forced DPF regeneration using the tool, check the
following items:
The fuel light is not on.
Figure 7-20 Sample SAS Function Screen 2
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