If there’s no emission value on the manufacturer’s plate, or you cannot find it, you must use the new default limits.
Vehicle first usedTypeValue 1. First used before July 2008Non-turbo2.5m-1
Turbo3.0m-1
2. First used on or after 1 July 2008All diesels1.5m-1
3. First used on or after 1 January 2014All diesels0.7m-1