User Manual

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11. DPF Service
11.1 DPF Safety
The DPF function allows you to carry out numerous functions on the
Diesel Particulate Filter system without having to send the car to a main
dealer. The tool will retrieve/erase DPF-related codes, reset the DPF
light after the filter has been replaced, micromanage the injection rate,
and burn off collected particles when a maximum fill level is reached
by performing static/dynamic regeneration.
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 loads and engine
speeds. In order for regeneration to take place, a prolonged high
exhaust temperature must be attained.
In the event of the car being driving 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 come
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.
 No DPF-relevant faults stored in system.
 The vehicle has the correct spec engine oil.
 The oil for diesel is not contaminated.
IMPORTANT: Before diagnosing a problem vehicle and
attempting to perform an emergency regeneration, it is important
to obtain a full diagnostic log and read out relevant measured
value blocks.
NOTE: The DPF will not regenerate if the engine management
light is on, or there is a faulty EGR valve.