Originally Posted by
Fudgey
emmissions are done on the age of the car i think, so if you put a new engine in it will still go on whatever the emmssions are for the car.
incorrect for engine swaps.
If you fit an older engine then you get engine age related emissions. BUT the onus is on YOU to prove the engine age through manufacturers letter, engine number date code documents etc.
from a copy of the relevant section of the mot manual i had:
Vehicles Fitted with a differnt engine
Test according to which is older, engine or vehicle.
e.g. A 1995 car fitted with a 1991 engine (of whatever make), test to 1991 standards for emission purposes.
Note: The onus is on the vehicle presenter to prove engine age.