With the software update, did you lose all of your preferences/settings, such as locking system and presets on the audio?

Not all...but lost audio/eq settings and some settings

Up here in Canada my dealer says the most recent update they have is v25. Can any Canadians confirm which update version they received? I thought there was a v25.1 & 25.2??

no RTTI in canada, 25.2 onli fixes RTTI problem in 25.0, that would be my guess

Service Dept just told me I have V 25 now....so I wouldnt worry which version you get because RTTI is not provisioned for us anyway :(

Took the car in for the upgrade. They kept it for three days in part waiting for a latch to be replaced per a recall.

When I picked up the car, they had not upgraded the software. They claimed they did an upgrade per a recall notice, but when I pushed about the upgrade mentioned in the service bulleting, they admitted they had not performed that upgrade (despite my specifically giving them the Service Bulletin number when I made the appointment and when I dropped off the car).

It gets worse. Whatever upgrade they did perform: (a) wiped out saved preferences; (b) resulted in the steering wheel no longer rising when turning the ignition off; and (c) the rearview mirror compass freezing on a direction of NE (after recallibrating, this is now back to normal).

Worst of all, I have the rear entertainment package, which worked fine until this morning. I inserted a new DVD for my daughter and the screen said it could not read the DVD. Moreover, I cannot eject the DVD. Powered off, on, pressed eject, checked menus, etc. - I cannot figure out how to get it out. If anyone has any suggestions, my 2-year old would appreciate it.

My steering wheel has exhibited the problem you mentioned since I took delivery (Feb 2007). The wheel moves down insted of up when turning the ignition off, and will not move back to the original position when entering the vehicle. I have been waiting for a new software release to bring the car in for this problem - I think I will wait a bit longer now....

There have been numerous software upgrade stories that were successful, I think the problem might be with that particular service center.

Reading my service notes, It looks like my dealership had to run the upgrade 3 times before it finished correctly. The first two times completely locked at certains points. Technology is great when it works :-)

BTW, I think the steering wheel moving up is a preference setting in iDrive.

Can't find an option in iDrive for easy entry/exit moving the steering wheel up and down - only the programable steering wheel buttons. Manual only says that it occurs.