Why not look it up yourself? You can use this site or RealOEM.com
http://bmwfans.info/
Here is the link. Make sure you put in YOUR exact production date and car options.
http://bmwfans.info/parts/catalog/E8.../mirror_glass/
You probably need these:
Mirror glass, heated, wide-angle, right 51 16 7 145 268 €63.10/$85.88
Mirror glass, heated, wide-angle, left 51 16 7 145 267 €63.10/$85.88