There is an automatic locking funtion on the F10 though I'm pretty sure it wouldn't affect valet service.
Originally Posted by markl53
1. There is no "Auto Lock" capability on the F10. (I'm not talking about speed activated locking while driving).
2. No, the car cannot manually be locked with the key fob inside.
The setting is stored for the remote control currently in use.
2. "Door locks"
3. Select the desired function.
"Lock if no door is opened"
The vehicle locks automatically after a short period of time if a door is not opened.
Mine is turned on and the only time it has come into play was when my car was in the garage (yes I lock my car in my garage). I unlocked the car to leave, went back inside for about five minutes and it took me about three seconds wondering why my car was locked since I KNEW I had unlocked it. I guess it's a good feature but I'm not sure how practical it really is.
2011 550i XDrive M Sport - carbon black/oyster