what year

hi all
im currently looking for my first disco td5 es.
ive been reading lots of good stuff on ere and picked up a few good tips but ive been told to get one from a y reg on wards as these have the bmw engines and are better.
Could anyone tell me if this is correct advice.
many thanks

mark

Hi from what I remember from 2001 the engine was updated too meet emission standards, but basically same as earlier lumps.