London transport authority seeks £1bn from carmakers over emissions compliance

Transport for London is pursuing up to £1bn in legal action against Stellantis, Jaguar Land Rover, BMW and Nissan. The transit authority alleges the manufacturers committed fraud and negligence by misrepresenting the diesel emissions compliance of their vehicles.

Under London’s ultra-low emission zone rules, owners of older, highly polluting diesel cars must pay a £12.50 daily charge to enter the capital. The zone was initially launched in 2019 before expanding to cover every borough in 2024. The authority argues that false compliance representations allowed these vehicles to bypass the levy, depriving the agency of critical revenue.

For the European automotive industry, the lawsuit introduces substantial financial risk and regulatory uncertainty. Investors will be watching closely to see if this municipal revenue claim expands into broader corporate liability across the continent. If local governments can successfully claw back lost environmental levies, it could fundamentally alter the risk models for legacy automakers still managing the fallout from past emissions scandals.

During a procedural hearing this week, the authority's legal team outlined the core of the grievance. TfL’s barrister Laurence Page argued that the manufacturers “expressly or impliedly represented” that certain diesel vehicles were fully compliant. “The representations were false, made dishonestly or recklessly, alternatively negligently, and caused TfL loss,” Page stated.

Defense lawyers pushed back against the scale and specificity of the accusations. They argued that the transit body is advancing serious claims “with potentially far-reaching consequences” while providing “no proper details or particulars whatsoever”.

The £1bn suit is currently paused until October, pending the outcome of a parallel legal battle involving 1.6 million drivers. That separate litigation, led by the law firm Leigh Day, alleges manufacturers deliberately installed defeat devices to mask nitrogen oxide pollution. The transit authority was a signatory to that broader case in its capacity as a vehicle owner.

The current lawsuit relies heavily on the legal foundations of that broader dieselgate action. However, a recent high court verdict rejected most allegations of deliberate test-rigging, handing a significant victory to the carmakers. Lawyers for the drivers are now considering an appeal against that ruling.

A spokesperson for the transit agency confirmed the temporary halt in proceedings. “The court indicated that it will stay these claims, while separate claims by vehicle owners against vehicle manufacturers proceed further,” the spokesperson said, emphasizing that the clean-air zone remains central to the city's environmental strategy.