Hi there, ive just bought a 54 plate mini convertible this week and within 24 hours of having it I've noticed that a single beep chimes when I pull
Away and before the car locks itself. I've checked to make sure that the doors are shut, boot shut probably and the same for the bonnet, the beeping sounds regardless of whether or not there is a passenger because at first I thought maybe the car thought the heavy bag on the front seat was a passenger but the beeping continued even when I put the bag in the boot:(.

I don't know what it could be as it didn't do this when I bought it Tuesday evening, and no lights come on the dashboard to indicate there's a problem, anyone with any info would be greatly appreciated!

Thanks April