Originally Posted by babybean

Hi guys, I am new to this forum and was looking for a bit of advice. We have a Discovery 2.5 TDS ES year '53 and for some unknown reason at 1 am this morning the horn started sounding but not in the way it would if the alarm was going off, it was continuous and neither buttons on the fob would silence it! My husband ran outside (in his boxers... tee he) and started the engine but that wouldn't stop it either. It went on for 5 minutes then stopped. My other half then locked the car with the key hoping that this would dissable the alarm (if hat is what it was). He got half way up the stairs and the same thing happened again, this went on (much to our children and neighbours disgust) again even when we gave up and left the car umlocked and unalarmed. As a last resort he disconnected the battery which finally stopped it. I am not sure if it could be connected but a couple of days ago the nearside rear door stopped working on the central locking meaning you had to open it from the inside each time...it is so strange as when the horn was sounding there were no lights flashing inside or outside of the car... any thoughts would be greatly appreciated!

Originally Posted by Rdhilaire

Same thing happenet to me with my wife's D II. this am at 12:15!!, me in my boxers at 16 degrees. I tried remotes but only pulling the horn relay worked. I am surrounded by neighbors with small babies. I'm sure I'm hated. Oh well. I will drive it in today and try to figure it out. I have heard a 1/2 stuck horn button might have done it, with temp changes settling in and expanding to make contact. Cold to hot though, would make sense. Not the other way around. I hit them repeatedly to stop the noise. That is one DAM loud horn too....