I think that with pre face-lift E53 you are stuck with low cluster but post face-lift you could have either cluster?? Is there maybe other criteria that determines which cluster a vehicle has? maybe fits together with NAV or DSP? This might be all different with the E46.

__________________
1988 325is (purchased new) sold
2004 X5 3.0 2005 X3 2.5
2008 X5 3.0 (new to me)