This question is on behalf of my wife and her horny 307!
Basically it has a case of the electrical gremlins. When it feels like it the horn sounds and stays on until you disconnect the battery. It can behave for half a day or 10 mins depending on how it is feeling. Also intermittently, the temperature gauge goes up to full and the stop light comes on (Replace sensor & checked wiring, still same).
I have been reading and some comments are pointing me towards a BSI fault.
Is this likey, has anyone else had similar experiences?, any help greatly appreciated as it's stopping the MOT tester from testing the horn at the mo
