Hi.
Also have a TD5 with streaming issues. Mine I think is down to to air leak into fuel system therefore, starved at start up. I can address mine with either cranking a lot or using the priming sequence (a la relplacing say, fuel filter). I just haven't got round to sorting mine but will when I get time.
If I'm reading your post right, sounds like you're getting a click on start and therefore sounds more like a starter motor problem.
By no means an expert BTW, Alan.