A few niggles

[Cruize]

I recently replaced my Exhaust Manifold after the old one cracked. This crack obviously left me running under power and I could smell smoke through my air vents. Fixed the manifold and sort that. When it had the crack it used to get a little puff of grey smoke come from under the front end. I assumed this was the manifold leaking so shrugged it off to that. Since I have changed the manifold I still see it.
Cold mornings arent nice to my car. It takes a few turn overs to start it and when it does I get a grey puff out the back and small one from under the front end still??

Now the cold start i'm gonna weed out through changing glow plugs, the waste pipes and t-pieces and maybe try a new battery. If not maybe Injector Seals (Hoping not).
I'm not sure what else it could be?? Ideas? on a 04 1.9CDTi SRi 8V btw

Also my windows when its cold steam up like a *****. Not just the front window which is common but all of them. I've checked the door seals which all look ok to me. I havent looked at the filter but thats going to be looked at as I know if they are clogged up or wet then it leads to this just I dont think on such a scale? Any other ideas other than seals and pollen filter?

[Ian-Highlander]

Check all your boost hoses.

[Ben50n]

Check the boot seals and if it has a sunroof are the draininage channels clear?