Sometimes too much information is not a good thing. My car finished production September 8th. My ED is Oct. 10th. BMWNA has shown the car at status 170 since 9/8. Every time I call the 800 number to check on the status, whoever answers in customer relations speculates about a new reason why it needs to go to the workshop. This started about the same time 335tt had his engine grenade up in Canada. You can imagine all the nightmare scenarios I went through as to why the car needs to go to workshop.
Finally I got a sane answer from ED department. Since the delivery center has room for a certain number of cars, this is the status that will show until a few days before delivery. The workshop in this case could be in Regensburg or in Munich. The car goes through for the pre delivery inspection, then is taken to the delviery center.