Quote from the BMW X5 brochure (printed June 2005) -

Standard on all models of X5 -

Interior lights package: with courtesy lights at the front and rear, exit lights on all four doors, switchable reading lights at the front and rear, illuminated vanity mirrors, footwell illumination at the front, illumination of entry area

It's the "exit lights on all four doors" that we are talking about. All 2005 models of X5 should have a kind of orangey/red LED illuminating the door handles.

Regards,

Dave