I agree, definitely alternator related not transmission. Voltage issues cause electrical havoc with BMW's due to the level of highly integrated electronics. Just expect a high price on that beast of a water cooled 180 amp alternator. Maybe get with 03MstyleX5 on where he got his replacement from.

I just realized all 3 of us have 03 4.6is, and I believe all black on black as well (with the exception of Ucrew who has the 3.0i)

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"When you do things right, people won't be sure you've done anything at all" (Bender, futurama)

You make something idiotproof, they'll make a better idiot

You think professional is expensive, just wait until you pay for amateur.

Never let your sense of morals prevent you from doing what is right.

Examine what is said, not who speaks.

X5 pics

RIP 4.6is.....

2003 4.6is