That bolt is the one that is usually a problem, Most people undo the engine mount bolts and raise the engine hence lowering the gearbox to get a more clear access to the bolt and then use really long extensions to undo it.

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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)