What does the manual say about "Left-hand/right-hand traffic" adjustment?
There must be something like in the
posted manual (page 87). Yes, the LHD/RHD part numbers are different. This should be why it only says "Push the lever upwards." for Xenon headlights adjustment. (Halogen headlights require light benders, different part numbers for LHD/RHD, obviously.) Addressing a BMW Service is still a very valid advice after all, I suppose.