completel refusal to crank and such error codes usually point to the K40 relay module.

The K40 module is the cluster assembly of relays in the underhood fuse and control panel center.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)