Written Question·Department for Transport·UIN 90352
Diesel Vehicles: Exhaust Emissions
Tabled: 12 November 2025
Answered: 17 November 2025
Named DayQuestion
Bell Ribeiro-Addy
Labour — Clapham and Brixton Hill
To ask the Secretary of State for Transport, what estimate his Department has made of the number of diesel vehicles in the UK that are fitted with illegal defeat devices.
Answer
Simon LightwoodThe Driver and Vehicle Standards Agency (DVSA) is investigating a range of Euro 5 and early Euro 6 diesel vehicles where potential non-compliance has been identified. There are currently 95 vehicle models from 28 brands under investigation. Manufacturers ...
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