If the DME turned off the cylinder you could just have enough dirt on the valve seat to give you that bad reading.

I would definitely swap bank 1 and 2 solenoids and see if you can get that vanos error to clear and get the engine to run long enough to get some cleaning agents though and maybe clean the valve seats.

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