Can't help with an answer but had a similar weird experience with my 147 in Tesco's carpark last week

This time it was the alarm going off after opening the boot! Got out of the car, set the CL & alarm, did the shopping, blipped the doors unlocked and then blipped the control for the bootlid. All OK until I lifted it. Almost dropped my..errr...shoping all over the car park.
After frantically blipping, opening and closing doors and blipping it again it all went quiet again - until my wife opened the passenger door and the oh so funny (

) merry dance started all over again
Many blips and door fanning later it all calmed down and has behaved ever since. I blame Italian gremlins in the electronics
