just had my alarm go off for the 4th time tonight! , killed two flys thinking it was them setting of the interior and while i was having a search for turning of the sonic sensors i fount out about the bonnet switch , iv just unplugged mine for just now , see if it lasts longer than the 30mins since the last pathetic chirp sound haha
fingers crossed or it could well be new battery time for the times5
Bonnet one failed on the E46 too......I never knew what the alarm sounded like until that switch failed. Easy to replace though. I think it was corroded pins inside.