Hi I've got a 03 z4 with drivers side dipped light not working. It's missing a cover on the back so I can assume I'm dealing with possibly water getting in there however all the other lights work, its just the dipped light. I've replaced the bulb a week or so ago and the light was flickering and then went off so today i fitted a new igniter and it wouldnt work this time at all, however it is letting off a buzzing noise from the drivers side when the dipped lights are turned on. Is there anything else i can try apart from buying another new bulb to try with the new igniter?