That's good news that your red plug was pretty clean, but if there was any oil, keep an eye on it from time to time.
I'm not sure if anyone has mentioned it before, but when you run through the bleed cycle on the TD5, it's best to run through it several times in succession, as many as four or five or even more. I (on Shifty's advice) did this with mine and kept repeating it until there was almost no sound at all from the fuel pump when I fitted a new pump and pressure regulator a while back. I've never had any problems since.