Its not easy to get maps of Eastern Europe. I had to make a copy of a friends pre-release CD of Poland and even that only covered major cities and major roads. Not sure if there even is a Ukranian CD yet, nothing Googled for me.

Best of luck, I would definitly try the local dealer first as he may have the most information or call BMW Europe in Germany for advice, based on my experience while living in Europe they were very responsive.

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Currently 2010 X6 35i, Premium, Technology, Sport.
2004 Lotus Esprit - Final Edition
Former '04 X5 4.4i, Highland Green, Nav, DSP, PDC, Heated FR & R Seats, Comfort Seats, Rear Load Floor, Premium & Sport Package, IceLink Plus, Bel RX65, Tow Hitch, Sirius Satellite Radio.
Former '03 X5 3.0, Nav, Premium, Rear climate. (Stolen)
Former '01 X5 3.0, Nav, Premium, Rear Climate (Lemoned)