Greetings,I have this problem with my E28. Previously I can start the car even with air-con, cassete player, lamp etc all open .... but now I have to switch off everything before starting the car.The thing is, I accidentally bang into another car, actually just the bumper of the car, no sweat at all ... both car suffered no injury ... but suddenly I can't start with air-con turn on ... I feel so weird about it.Please do tell me why ...regards,maelzx