Citroen C4 Picasso II BlueHDi 100 (2018) AdBlue/DPF Issue

[borek]

I had before issues with AdBlue tank (compressor) and we turned off the AdBlue system (hardware and software).
Now I have issue with DPF (clogged). AdBlue is necessary in the maintenance of the DPF?
My local service didn't find the FAP additive tank, so we think in BlueHDi there is no FAP additive tank anymore and just AdBlue needed for DPF maintenance?

Thanks for help!

[GiveMeABreak]

1) We won't support vehicles that have had the emissions systems deliberately disabled, so please don't ask for any help with this. If you have disabled them, expect problems.

To answer the other questions:

Blue HDi engines have both systems.

1) An SCR (Selective Catalytic Reduction) that injects Adblue (UREA) into the catalytic converter to treat the NOx emissions and
2) A DPF (Diesel Particulate Filter) to capture the particulate matter in the filter. You will have a separate DPF additive tank that injects the additive into the fuel tank whenever you add duel. This helps assisted regeneration by lowering the exhaust gas temperature required to regenerate the filter.

The DPF additive tank is stored next to the fuel tank under a heat shield.

[borek]

Thanks for help!
We found the tank, where you described.
Sorry for my question, in my country you have rigths to do this for tuning purposes.

I just like to understand how complete system works and why are these components in the system. So I digged a little bit deeper to satisfy my scientific curiosity and I found these articles:
https://www.researchgate.net/publicatio ... l_reaction
https://www.researchgate.net/publicatio ... ld_Driving

This means when the exhaust system looks like in my car (AdBlue->SCR->DPF), the AdBlue improve more passive DPF regeneration?