I have an 85 380SL with the following problem. The flashers don't flash when the hazard switch is activated. Here's what happens - the hazard light lights up but no lights flash. The turn signal switch starts a buzzing sound. If I activate a turn signal by moving the turn switch lever to one side or the other the buzzung stops and the light blinks. Any ideas on this one? Could the 'flasher' be the problem? Anyone know how to locate the flasher and test it out? Thanks for any help.