With this function a request is sent to the engine control unit that a regeneration of the particle filter should be implemented.
Note:
Regeneration of the particle filter is normally operated by the engine control unit, but for example at city driving, the exhaust gas temperature often does not reach the temperature required for a regeneration to start. Then it is necessary that the car is run a longer distance at a steady pace with a speed of at least 60 km/h. If you still are not sure that a regeneration is carried out, you can request that it starts with this function.
If the particle filter is very blocked by soot, it is possible that the regeneration is frozen after a short period of time. Then it is necessary to regenerate the particle filter by driving in such a steady speed as possible for about 30 minutes, at a speed of at least 60 km/h. Then a new request for the regeneration of the particle filter should be done.
Test prerequisites:
No faults in the system.
Fuel level at least 10 litres.
Ignition on, engine off.
Procedure:
Press "OK" to ask for a regeneration in the engine control unit.
Turn off the ignition for 10 seconds.
Start the engine.
Run the car for at least 20 minutes with such a steady speed as possible of at least 60 km/h.
Regeneration of the particle filter is started as soon as the coolant temperature reaches 75 °C and the exhaust gas temperature exceeds 240 °C.
The status of the regeneration can be seen in the datalist parameters, which can also read the mileage since the latest regeneration.
If a regeneration can not be completed in time, it will resume in the next operating cycle, as soon as the coolant temperature reachs 75 °C and the exhaust gas temperature exceeds 240 °C.