If you don't have the special tool on vibration damper the engine can be turned on one of the torx bolts on vibration damper. The torque required to turn engine is much less the tightening torque on those bolts. If the engine doesn't rotate by hand it must be hydrolocked. Then remove intake manifold and glow plug and and try turning again. Engine can be run without intake manifold (of course glow plugs reinstalled) so you can see how the engine runs. While running you can check injector correctional values which also tell if there is loss of compression on some cylinder.

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E39 530dA -02 M-Sport Messing metallic
E53 X5 3.0dA -06 Sport Stratus grey
E70 X5 40d -12 M-Sport Space grey