Many of the things on E53 are prewired but I don't know about AHL module. In any case level sensor wiring would need to be transferred from LCM to AHL module.

Obviously even the height leveling on AHL headlights won't work without signalling from AHL module so they would be quite useless.

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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