Frequent DPF regenerations

[mrjohnson]

C3 Picasso 1.6Hdi 2012; 50k miles

I've been through the DPF warning then DPF clogged error code journey. No other error codes.

Eolys pouch OK, so I bought a Artidiag 600S, verified there was a high differential pressure and did forced a regen which worked fine. Removed the error code. Differential pressure now fine.

BUT....

Although the car is running well with no error codes it throws a forced regen every 100miles or so, which is crazy. The 600S won't let me reset anything else to do with the DPF.

Ideas?

[GiveMeABreak]

That is not a forced regeneration.... A force regeneration is done when the vehicle is stationary and via the diagnostic tool only. This is NOT recommended due to the stress and strain placed on engine components that will not have the benefit of cooling when the vehicle is naturally moving on a journey.

Your vehicle will either 'naturally regenerate' when conditions allow and the exhaust gas temp reaches about 550°C whilst driving, or will use assisted regeneration when necessary which allows for regeneration to take place at 450 °C.

There should be no need for any intervention / resets or anything else, so I don't know what you are referring to.

You only tell the engine ECU the DPF has been replaced when you have physically cleaned it or replaced it.

You need to go on a decent run, reduce any short stop and start journeys you may make in order to decrease the regeneration frequency.

The DPF pressure differentials are generally only used as as a safety backup and will naturally rise and fall as the filter is regenerated - this needs no intervention from you and of course the readings will fluctuate as a result of the process which is perfectly normal.