2004 MAZDA MAZDA6 User Comment / Complaint

I have been having trouble with the headlights and fog lights on my 2004 mazda 6s. i have had to replace the bulbs twice in the last 1.5 months, by a dealership. they are burning out, but not the brights. the dealership, central mazda, in plainfield, ct, had put the vehicle through a series of electrical tests this morning and can't seem to locate the problem. the dealership has only charged me for the first replacement, but i am not sure this will continue to be a free service. i have no other complaints at all about the car. i bought it new.