Schmidtj,

I asked for 3 customizations on my first 5K (about 2+ months back, but just haven't had the time to be 'semi-active' on this forum since then):

• Silencing the seat belt buzzer (took a lot of convincing/coercing to do, but they ultimately caved in)
• Turning off auto-inlet mode (I like to decide recirc or not on my own, thanks...)
• One-button press for opening all 4 doors vs having to press twice (note: I'm talking about the remote, not the door!)

All of them "gratis". I don't know how often I can go there and get it all done for free, but I'm sure they'll "comply" the first time in the hopes you'll come there the the car's lifespan -- even after the first few free oil changes.