Anyone know much about LEZ?

[Boobonman]

Been trying to better understand the whole thing, and looking at getting myself a LWB Sprinter or Transit shortly. As I understand it, any van 2002 on is currently ok (excepting some 'early adopters') but what I don't want to do is buy a compliant vehicle and then find out it works on a rolling scale and I can't go in the city after a year or so. Anyone know where they are going with it?

[Willy Nilly]

Our 2005 DAF LF 45 had to have an expensive trip to the mechanics to make it LEZ compliant. I think, but will stand corrected, that they moved the goal posts so now it needs to be post 2005 (would that be Euro V compliant?).

[Cold Snail]

I think with anything larger than 3.5t, they now have gone to Euro 4 from 3.
Diesel vans (over caddy size) now have to be Euro 3. Expect it to move to Euro 4 in a few years, while the bigger stuff goes to 5.
It all depends on how long you want to keep the van. I bought a Euro3 spec 3.5t for now as I expect it to be knackered before the rules update.

[sirrahjay]

As usual the rules are clear as mud, though the TFL website does try and make some sense of it.
The biggest piece of nonsense is that my Euro 3 engined tractor unit passes the LEZ test as it was registered after 1st October 2006. So it would appear the registration date of the vehicle is a big factor rather than the Euro rating of the engine, makes it all seem rather pointless.