End of the road?

[Steve Q]

Thanks for the links Kev. 

Annoyingly last week I discovered from my mechanic that if I buy any 2.5tdi engine and keep my current injection pump and ECU the car will think the replacement engine is the original and will run. Wish I'd known that a year ago instead of worrying about coding of injection pumps and imobilisers etc. 

So my simplest option is to find a bau version of the 2.5tdi as this was the last variation of that engine and most refined in theory. Trying to find one with low miles and proven service history, but naturally this is proving difficult.