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50
DPF Service
The DPF function allows you to carry out numerous functions to the Diesel Particulate
Filter system. The tool will manage DPF regeneration, DPF component replacement
teach-in and DPF teach-in after replacing the engine control unit.
The ECM monitors driving style and selects a suitable time to employ regeneration. Cars
driven primarily at idling speed and low load will attempt to regenerate earlier than cars
driven with higher loads and at higher speed. For regeneration to occur, a prolonged high
exhaust temperature must be obtained.
In the event that the vehicle has been driven in such a way that regeneration is not
possible, a diagnostics trouble code will be registered, DPF light and “Check Engine”
indicator will display. A service regeneration can be performed using this tool.
Before carrying out a forced DPF regeneration, 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 vehicle and attempting to perform an emergency regeneration, it
is important to obtain a full diagnostics 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.
The ECU must be re-adapted when replacing the DPF and adding the fuel additive
Eolys.
If the vehicle needs to be driven in order to perform a DPF service, ALWAYS have a
second person help you. One person should drive the vehicle while the other person
observes the screen on the Tool. Trying to drive and observe the Scan Tool at the
same time is dangerous, and could cause a serious traffic accident.
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