That "first minute" unpleasant odor is exactly what we complained to our Service Center several months ago. Our P85 is from Oct 2013. SC notes state "...found non charcoal cabin air filter. Charcoal cabin air filter is used to eliminate cabin odor. Replaced with charcoal air filter."
And we've not had any recurrence of the odor. I hope this solves your problem, although I find it strange that such a recent build as yours might still not have had the earlier, non-charcoal filter.