Decided to hoover out the cobwebs after 10 years and give it a go at starting the beast. Put a new battery in it and it started first time. Brilliant. However, a bit smokier than I was expecting. Would this just be 10 year old diesel or something a bit more sinister? 200tdi
How much is in the tank?
If its low I would say top it up with fresh and run it around the block a few times (like you stole it ) then see what its like.
If it has a lot of fuel then be prepared to taste diesel from a hose.
It may not be an issue but rule it out. Does old diesel get fungal growth? maybe a treatment added to some fresh fuel.