Hi folks,
I replaced the alternator 3 months ago, bought a chinese one off of ebay.
everything was fine, so this morning drove for 15min, fine, ran(jog) for 1 hour, got back home, going to work as I turned it, the light came on, drove for 30 min, shut the engine off, got my tester, it read, 12.4V, turned it on, read 14.02V.....and guess what, battery light went off ! ???? what gives??? any ideas ???

thx!!!!

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2012
E70
3.0 Diesel
18K miles