Killcrap,
Got one for ya. 01-X5-3.0,121,Kmiles. 6 month old BMW battery with 12.volt charge at terminals and green light. In engine bay at jump site with car running 14.1 volts.
However, the beast won't start, gets a jump and starts right up. Fine the next day, short trip, no start. Let rest , starts right up. Drive again, long trip, let sit 10 minutes, won't start, 12 volts at jump site and battery still green light. Then, try again, starts up.
What can do ??
Thanks..