Urea light Blinking - faults F034 + U059E 81

[lxgadjet]

hello everyone.

I bought a 3008 a few months ago from a person close to me, knowing that I had the engine light and Urea access.
I bought it thinking it would only needed to top up the adblue.....
after purchase i checked the adblue tank, it was almost full. filled to the top.
got the same errors even after driving the car for a few days
after that i got a cable and diagbox software, a 3L bottle of eolyss powerflex and topped it up with 1.1..until spill out.
I did the resets with diagbox (i think...)and all the errors disappeared...
but after a few tens of kms (40, 50 km....) the engine light returns, urea with engine failure warning and stops after 1100...kms
when doing an error search with diagbox it appears:
1 error F034 Absence of communication with the Alarm ECU
3 errors U059E 81 Fault in communication with the Denox System

I don't know what it can be in concrete, has anyone had this problem?
can you help?

thanks
Lxgadjet

[GiveMeABreak]

Are you mixing things up?

You seem to be talking about the SCR system (which uses Adblue / Urea), then you talk about topping up the Eolys Powerflex additive which is only for the particle filter not the SCR system???

I hope you haven't put Powerflex in the Adblue tank.....

These are 2 separate systems with different functions.

[lxgadjet]

Are you mixing things up?

You seem to be talking about the SCR system (which uses Adblue / Urea), then you talk about topping up the Eolys Powerflex additive which is only for the particle filter not the SCR system???

I hope you haven't put Powerflex in the Adblue tank.....

These are 2 separate systems with different functions.

Hi,
no, not mixing the two things.
my car has both one aeolys tank and one adblue tank.
has y didnt now what the problem is, i top up both, the eolys tank with aeolys and the adblue tank with adblue.
still didnt solve the issue......

[GiveMeABreak]

Best to get it to a dealer then - Adblue issues can be complicated to troubleshoot and really need a dealer-level diagnostic to resolve. It may be cheaper in the long run than taking it to several other garages that may not be equipped to fault find.