For the headlights I have aswell the Osram cool blue ones. They are a little bit whiter than the stock ones. No LED so no dash error possible here.
Attention, parking lights is WRONG. Its H6W and I would upgrade to LED. I have this one without issues:
http://www.ebay.co.uk/itm/BMW-3-seri...item3a9cee17f2
Indicators, I have the philips silvervision chome. And it looks much better than stock. No LED so no dash error possible here.
DRL with canbus error free will not show any failure code. Maybe you just need to code off the cold & warm monitoring of the bulbs if they flicker at startup or all 4 to 5 minutes.