I helped with the alt bracket gasket. That is a moronic design. Sorry BMW. $4 part and at least 4 hours of labor could be double. It's totally DIY doable just plan on taking two days so you hurt less afterwards. Also, loosen an engine mount and lift the engine and/or pull the CV axle out of the hub so you can move it to make more room.

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