My 2000 540i has a tray in front of the gear shift that I store change in. Turns out that a penny fell into the lighter shorting out two fuses. One fuse for the lighter obviously, and the next fuse up from it which controls the remote arm/disarm function. After replacing the lighter fuse it works fine, however the fuse for the alarm blows every time I arm or disarm the alarm. My mechanic said he really has no idea what could have happened, any ideas?
