I have read that BMW changed the alternator design to a better unit sometime in 2014. Does anyone know what month this was done. My bike production is 4/14. Should I be worried about my alternator going out? I know this is a very expensive repair. My bike has 34000 miles. I love the bike but would hate to have to pay 3000- 3500 for repairs. Thank you in advance for any information on this issue.