Find a good YouTube video.

I haven't worked on that exact motor but m62 water cooled alternator was not a difficult task.

You should be able to disconnect the power at the B+ which is much cleaner than battery ground.

Once the fan and plastic shroud out of the way you should find it pretty easy.

Keep track of screw lengrh I think a couple aren't the same as the rest and use a torque wrench to put the screws back in. No guessing with aluminum.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)