According to The Guardian, the court found that most engine management systems challenged in the mass claim did not qualify as illegal defeat devices under UK law. The judge left open claims tied to some Mercedes and Peugeot-Citroën vehicles, while claimant lawyers signaled they are considering an appeal.
This is a decisive win for carmakers facing one of Britain's biggest consumer claims. Public outrage over emissions cheating doesn't translate to courtroom victory when the legal test hinges on technical distinctions that courts and regulators interpret differently across Europe. The ruling narrows what was a mass claim into a fight over a handful of specific systems.
The claimants will likely appeal, arguing the ruling puts Britain out of step with European courts that have been more receptive to dieselgate claims. The remaining Mercedes and Peugeot-Citroën cases matter too—even a near-total victory for manufacturers leaves some exposure.
Dieselgate was supposed to reset the balance between regulators, manufacturers, and drivers. Carmakers learned that complexity is a shield. If the software is intricate enough and the legal definitions narrow enough, a 1.6 million-owner claim can shrink into a dispute over a few brands and one appeal. Mass litigation hits a ceiling when judges split hairs.
Filed to the World desk · Jul 10