Vehicle emissions claims
Leigh Day are leading experts in vehicle emissions group claims.
Mercedes emissions claims
We are bringing a group claim against the German car manufacturer Mercedes-Benz over the use of an alleged ‘cheat device’. If you own a Mercedes-Benz vehicle, you could be entitled to compensation.
Join the Mercedes-Benz claim
Porsche, Audi and other Volkswagen Group vehicles emissions claims
We are investigating a potential group claim involving Porsche, Audi and other Volkswagen Group vehicles over allegations that certain diesel vehicles contain “cheat devices” that enable them to cheat emissions tests.
Join the Porsche, Audi and other Volkswagen Group vehicles claim
Nissan/Renault emissions claims
We are investigating a potential group claim against Nissan and Renault over an alleged ‘cheat device’ fitted on some of their cars in order to artificially reduce emissions to pass EU tests. Sign up using the button below to join this potential group action.
Join the Nissan/Renault claim
Vauxhall emissions claims
We are fighting for compensation on behalf of owners of Vauxhall vehicles who we believe were deliberately misled over the environmental performance of their vehicles.
Join the Vauxhall claim

Potential claims flood in from UK Mercedes drivers over 'cheat devices'
Lawyers investigating claims against the German car giant Mercedes over alleged 'cheat devices' have revealed they have been approached by over 1000 UK drivers in the space of three days, since they announced they were investigating emissions claims.