I took the danged thing in for a service this week, and they found £2,000 of work that needed doing to it. That included changing the injector seals. I got £750 of the most urgent stuff done, than the rest I'll have to stagger through the year.
I mentioned this to the solicitor dealing with my claim against the dealer, it seems they can take this into account.
Got the top door-hinge location ground down recently though, so the door fits a bit better.
I would no way be brave enough to change the injector seals myself. He said invariably the rubber seals that are also there will break up and needs replacing, and they're £35 each. I would probably drop stuff down into the cylinders.
So I know they need replacing now, because oil is pooling at the injectors, being forced out under pressure, and yes, it makes it run a bit ropey and smokey.
https://photos.app.goo.gl/kaRURfU9p9cAGre2A
Ford Transit Mk 7 Panel van, ex-posty's, 57 reg, 2007. Duratorq TDCI 2.2 (85PS)