cool, good to know, but rather uninteresting for private individuals. Overhauled tank = 550€ + tax.
The sad thing is that PSA is aware of the problem and can supply the spare parts but doesn't offer a favourable solution.
When I was still working in the workshop, we repaired the Bosch modules from IVECO and offered customers a favourable option, but with PSA Germany, you can forget it. The Ad-blue tanks are a money-printing machine for them!