The transmission is pretty solid. It should get the standard mechatronics refurbish. You probably notice like mine, it's a little lagging on the initial grab. I spool up my rpm to 1200 slowly to get the initial bite and then it behaves.

My buddy that did the swap had to exchange oil pan and i think the engine harness. He must have kept his DME. (No coding involved).

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