2009 bmw 750i Alternator issues???
I took my bmw 750i in for servicing because i kept having the drivetrain malfunction error along with my vehicle driving ruff as if it was misfiring at certain times, but moment the vehicle is turned off and restarted all the faults were cleared.( all sparks and coil packs already replaced). When i did a diagnostic i was told it could possibly be the alternator because the voltages are flowing up and down continuously and they are not sure why its jumping irregularly. I've been told it could possibly be the alternator as the battery is in 80 percent condition.... What do u guys think any help would be great i have already dropped a couple thousand on this issue !!!! NY HELP WOULD BE APPRECIATED !!