'91 735il headlight problem

The headlights on my 1991 735il will "turn off" on their own while driving. My dash indicator doesn't say "headlight out" like it does for the tail light, etc. When I turn the headlight switch off and on, sometimes they'll come back on. If I flash the highbeams sometimes they'll come back on.
Both lights go out at the same time...any ideas? Thanks for your help!

K3 relay is my suspect

http://members.roadfly.com/kcroncarter/bmwetm135.jpg