Autel MaxiCheck EPB - Manual (Page 108)

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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 a 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.
NOTE: The ECU must be re-adapted when replacing the DPF
and when topping up the fuel additive Eolys.