Carmakers secure early win in UK diesel emissions lawsuits

Some of the world’s largest vehicle manufacturers have secured an important early victory in one of Britain’s biggest automotive legal disputes, after the High Court rejected most of the main claims over alleged diesel emissions cheating.

Judge Sara Cockerill ruled that most of the key allegations against manufacturers whose vehicles were examined during the trial were not proven. She said emissions laws only cover devices intentionally designed to detect official testing conditions and alter how emission control systems operate.

The decision covers sample vehicles produced by Mercedes-Benz, Ford, Nissan, Renault and Stellantis brands Peugeot and Citroen.

High Court Ruling on Diesel Emissions

The judge did make limited findings against some manufacturers. These included a coolant temperature device previously used in certain Mercedes vehicles before a software update in December 2015 and a combustion mode used in some Peugeot-Citroen models.

A Mercedes-Benz spokesperson welcomed the decision, saying the court ruled “very largely in favour” of the company. However, the company said it disagreed with one finding and is considering whether to appeal.

Stellantis also welcomed the outcome, noting that only one allegation was upheld. The company maintained that all its vehicles comply with applicable vehicle emissions regulations while reviewing its legal options.

Appeals Likely as Litigation Continues

Lawyers representing the claimants said they are considering an appeal, arguing that the judgment applies a narrower interpretation of emissions law than courts elsewhere in Europe.

Judge Cockerill acknowledged that appeals are highly likely because of the size and importance of the litigation.

The case involves about 1.6 million claimants, with Friday’s decision expected to influence roughly 800,000 additional claims involving other manufacturers. Another trial is scheduled for October to determine whether any breaches of emissions rules could result in compensation.

The litigation follows years of scrutiny after Volkswagen’s 2015 Dieselgate scandal, although rival manufacturers continue to argue that their emissions systems differ fundamentally from Volkswagen’s case.

Read also: Volkswagen crisis deepens as China profits collapse and stock hits 15-year low