2007 was the first year for the E70 and its not uncommon, especially for BMWs to have more problems in their first year.
The balance issue could be a rim issue, not just the tires. I would suspect a weak battery for the clock issue.

__________________
Richard
Sir Snaps-a-lot, 9 Time Dragon Slayer (54 runs!)
2011 X5 50i Alpine White, Biege Nappa /Lt Poplar M Sport
2009 Z4 35i, Black Sapphire/Ivory-Black/Anthracite

Gone but not forgotten: '08 550i, '06 X3, '06 650i, '02 M5, '99 540i