Vehicle Emissions
A key judgment has been delivered in this claim.
A judgment has been handed down in this claim. We are currently reviewing this and will update this page in due course.
Read a summary of the judgment here: Pan NOx judgment summary - 100726
Read the full judgment here: Various claimants -v- Mercedes Benz Group AG and others - Courts and Tribunals Judiciary
We are not currently accepting vehicles manufactured by BMW, Citroen, Jaguar Land Rover, Mercedes, Mini, Peugeot, SEAT, Vauxhall and Nissan or Renault.
Leigh Day represents hundreds of thousands of UK vehicle owners on a no-win, no-fee basis against many of the leading vehicle manufacturers. This follows allegations that manufacturers fitted 'defeat' devices to their diesel vehicles to cheat the EU and UK emissions laws. Leigh Day is acting on behalf of these owners and is seeking to claim compensation that could be worth thousands of pounds per vehicle.
We believe this legal claim matters to everyone. These vehicles were often advertised as being more environmentally friendly with lower nitrogen oxide (NOx) emissions. Increased levels of NOx have been linked to global warming and as many as 64,000 early deaths a year.
Leigh Day were the joint-lead lawyers in the first diesel emissions group litigation brought against the Volkswagen Group on behalf of over 90,000 vehicle owners. In May 2022, an out-of-court settlement was reached in that litigation, which resulted in a payment of £193 million being made to the claimants
What our clients say
what our clients say
I chose Leigh Day because I know they have a lot of experience in group claims. So far the process has been easy and if I’ve had any questions the firm has answered them quickly.
Will Castello
Fleet claims
We provide a specific service to fleet managers and those responsible for fleets of vehicles within businesses. To find out more please email us.
What our clients say
Leigh Day handled a class action case against VW for the Diesel Scandal. They secured a substantial out of court settlement for me that far exceeded my expectations. They kept me updated at every step of a long drawn out case and gave me good advice. A top professional law firm.
Phillip Duke via Trustpilot
Why use Leigh Day?
Leading experts
We are the joint-lead lawyers in the emissions litigation on behalf of UK Volkswagen owners, who recently won the first round of their emissions case against Volkswagen in the UK High Court.
High Court success
In April 2020, the High Court in London found that the decision by the KBA, the German road vehicle authority, that the software was a ‘defeat device’ was binding in the English High Court.
No win - No fee
We will only deduct a percentage of your damages if the claim is successful, but you will not have to pay anything if the claim is lost.
Related news
Lawyers representing 1.6 million vehicle owners are considering whether to seek permission to appeal following today's High Court judgment in the Dieselgate trial
Following a 13-week trial, after considering 20 representative vehicles across five car manufacturers, a High Court judge found that three vehicles – one Mercedes and two Peugeot/Citroen models – contained Prohibited Defeat Devices (PDDs).
Car manufacturers will face trials over Dieselgate emissions scandal next year
Trials of Dieselgate claims against four major car manufacturers will take place next year after the High Court gave dates to hear vehicle owners’ allegations of the use of in-car technology to cheat emissions tests.
High Court rules diesel emissions scandal claims against Mercedes and two other manufacturers will lead the way for claims of more than 1.2 million vehicle owners
The High Court has ruled that legal claims against Mercedes and two additional vehicle manufacturers, to be determined at a later date, will go ahead as the lead claims in the diesel emissions scandal, with a first trial potentially taking place in February 2025.