I have seen a few people ask this question but there is never a response from someone who has actually done it. N52 block part numbers are the same but short block part numbers are different. Adaptive drive is a different power steering pump.

For you, getting an E90 N52 is a somewhat safe bet. They are in the $500 range for a 2011 w/ 100k miles. I see the motors all the time in the pick n pull yards. People take the cradle but leave the engine as they are not in demand. Complete 2011 E90 from copart are $500-1000. Worst case, if the motor does not work, you can sell it and get a lot of your money back.

It is funny that used E70 N52s are significantly more money. I would prefer an N52 from an E90 that has spent its life moving around a much lighter car while tuned to output much less HP.

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2009 35d, 2006 325i & 330i