2.5td 19J lump into a series 3 109?????

Right I've got a series 3 109 with a rather sad old 2286 diesel in it. I've also got a 2.5td which I took out of my 110 and is not in bad nick. Anyone stuck a td into a 109? Will I have problems with the exhaust downpipe like I might with a 200tdi? Any other pain in the arse issues to deal with? Dunno if it's worth the bother but I've got the ingredients so might give it a go,

I think your main pain in the arse will be you 2.5td engine when its in your series. Mine is still in my 110 burning oil like a bastard!

do a search it's been covered loads of times