If you look at the video of the take apart of the damaged starter, notice that some of the commutator bars are melted together that will cause current to flow through more windings than designed at the same time. This will cause it to draw dramatically more current

You should be getting close to 11 v at the starter so 2000w would mean 180A (just a rough estimate. Actually, moronically they probably rate for 12v even though that theoretical value is not likely.

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