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The 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 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 in addition to the DPF light and “Check Engine” indicators
displaying. A service regeneration can be requested in the workshop, using the
diagnostic tool.
Before performing a forced DPF regeneration using the tool, check the
following items:
The fuel light is not on.
No DPF-relevant faults are 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
1. The DPF will not regenerate if the engine management light is on, or there
is a faulty EGR valve.
2. The ECU must be re-adapted when replacing the DPF and when topping
up the fuel additive Eolys.
3. If the vehicle needs to be driven in order to perform a DPF service, a
second person is needed for the function. One person should drive the
vehicle while the other person observes the screen on the Tool. Do not
attempt to drive and observe the scan tool at the same time. This is
dangerous and puts your life and the lives of other motors and pedestrians
at risk.
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