05 745li charging system problems

[Chayman 85]

So i have a 05 745li and its not holding a charge. Ive replace the altenator, power module and it hasnt fixed the issue. I hook jumper cables to my car and it runs fine as soon as i remove them the car dies within a few mins. Im at a loss here i do t know what to do please help

[MarcoZandrini]

What brand is the new alternator? Is it “new” or “rebuilt.” How old is the battery?

[White94RX]

You did the alternator and power module, but not the battery? I'd start there. A proper load test, age of the battery, an energy diagnosis test plan too.

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