Look for the fuse box in either the glove compartment or the rear offside trim cover where the battery is. Your manual should tell you this. There should be a list of what fuses there are and ratings. If the horn fuse is blown you are on to a good start. If a replacement blows again or original wasn't, it's best in the long run if BMW dealer sorts.
Steering wheel horn buttons have explosive airbag so also best left.
xyzbird
October 2008
howtomendit.com for free repair help, information and advice.
