AdBlue® & Haldex® Collective Action: Report Your Failure

This registry collects AdBlue (SCR) system and Haldex coupling failures worldwide. Every report makes it visible that these are not isolated incidents but a recurring design defect — which is precisely the decisive argument against a manufacturer and in court.

Who should register?

This concerns in particular vehicles showing fault codes P20E8 and P20EE (AdBlue pressure, reductant quality) as well as 01155, 00448 and P1889 (Haldex pump). The brands most often reported are Peugeot, Citroën, Opel, Land Rover, Jaguar, Volkswagen, Audi, Volvo and Mercedes-Benz. If your model is not listed, your report is still valuable.

What happens to your report

Your information is processed anonymously and feeds the registry's public statistics. It establishes the scale of the defect and serves to inform affected owners about joint legal steps. Registration is free and without obligation: it creates no mandate and commits you to nothing.

Why the number of reports is decisive

A single owner is quickly dismissed as an exception. Hundreds of documented, identical failures are a series defect. This body of evidence is at the heart of any negotiation over a goodwill gesture, repair, price reduction or rescission of the sale. The registry is not a filed lawsuit, but the factual basis that makes one possible.