Sorry, would have come back to you sooner but I couldn't figure out a way to 'un-pair' my VIN so I could search for yours.
Could be the dealer has to activate something on the car as part of the PDI for the vehicle position thing to work? I only ever tried it after I got the car. If not, then you've got the first stealth F31... great for speed cameras, not so great in the car park!
