Back in 2008, when I purchased a 1999 e39 540iT...it only came with one key. The first thing I did was order a spare key. When it arrived, the parts dept gave me a call, I drove over and picked it up. I walked out of the parts dept and stuck the key into the ignition, and the car started right up...without anything being done to the car. I preceded to drive home, and that key stayed in my spare key drawer until I sold the Touring back in Nov/2012. It still worked...and again, it was never "initialized" to my car by the dealer...it went straight from the parts counter, to the ignition, to my spare key drawer.
(the (EWS) spare key purchased in the receipt below is located on the right in the pic of the illuminated & plastic spare key below)
