I drive my x5 today, the battery light constantly stay on and then my abs, airbag, etc include transafe light eventually the headlight, radio, and car stop. My of mine jump start but as soon as the jump start cable disconnect the engine shut off and my friend bring me the jump battery and connect to the battery jump cable and make it home before the battery is dead. I guess the alternator is bad. Do you know what kind of alternator do I need? DO you has the part number for the alternator.

Thanks,
Henry