Oh ok, that doesn't seem to be the same thing as this

2006 BMW X5 Parts - getBMWparts.com powered by Tischer BMW - Your #1 Source for all OEM BMW Parts/Accessories!

Although I found what you linked for the 4.8 X. I don't get it, did you manage to take that entire unit apart and replace only the lock? Please explain. I feel like I got shafted for $200 all of a sudden.