Horn will not work on my M5
Last year I had some water get into my trunk during a rain storm that caused damage to several electrical components in the trunk. All had to be replaced (GPS, radio control,etc) - and appear to be working fine. Car was stored over the winter. Now I have realized that my horn does not work. Computer in the car says all systems are fine. I have checked the 5Amp fuse in the right rear of the car and this is normal.
Does anyone have any suggestions, other than taking it back to the dealer ?