quick search of bimmerfest finds this picture...



if your car still has the original tuner, the production date of your tuner must be no later than the production date of your car itself, and no older than a few months before that - the BMW is using Just In Time logistics, and has little items just sitting on the shelves...

When you get the car, and dealer claims that he installed a new tuner for you (if this is your agreement to have the tuner installed), check the dates - the manufacturing date of the "new" tuner must be considerably newer than the car's date of birth - otherwise, if the date falls within the few month prior to car's built, then you had the tuner all along...

the new tuner might have a brand new 1 year FREE subscription included, while the original tuner had that subscrition expired/used up long time ago...

there is a chance of having a remanufactured/refurbished tuner being installed - unless there is a significant savings realized, that could be an issue...

but... i would wait to get the car in your hands to actually see what is going on...