2007 Mazda 6 keep replacing burned out headlights on both the Left and Right side. Had the Mazda dealer run my vin to make sure I was buying the correct bulbs. Purchased different brands of bulbs. Nothing seems to be working. Is anybody else having the same issue with their headlights? If so, what did you do to correct the problem.

 

What is your system voltage when you drive, higher than normal voltage will pop bulbs. Are your headlight housings loose? Are the connections to the bulbs tight?

 

This is why my Saab's lights were blowing constantly. I had corroded connections which raised the resistance of the wires, that overheated the connections and the plastic connector raising the resistance even more, it got to the point of blowing the bulbs in about 4 days, only realized it when the connectors fell apart in my hands from being baked.

 

Thanks MazdaTirol...My mechanic checked the volts coming out while the car engine was being revved up and said it was in normal range. I will definitely have him check the connectors.

 

Any updates on this one?
This seems to be a common problem w/1st gen 6's. It would be nice to figure it out.
I know car manufacturer's are trying to save weight (and cost) so they can tout better fuel mileage. Could it be they undergauged the wire so much that it can't even pull 55-60watts @ 12v w/o causing a resistance issue?
The "fix" may actually be rewiring from the fuse box forward using heavier gauge wire? Or, installing a relay and using heavier wire from it to the headlamps?

 

Are you touching the glass part on the bulbs at all when replacing them? The bulbs will blow if you are coming in contact with the glass.

-Sheldon.

 

Thanks Mazmart Trini! Definitely not touching the bulbs at all...taking extra time and care when installing new bulbs.

 

Someone has a thread on condensation being a problem in headlights and tail lights. makes sense condensation will help corrode connections.

https://www.mazdaforum.com/forum/maz...-lights-27849/
Service Bulletin 311161 for Mazda EXTERIOR LIGHTING | AutoMD

 

I had a 2004 that kept doing that, so i traded it in. But later found out it was a valus issue. I have a 2007 now and it does the same thing have to replace the head lights every other head light at least once a year.

 

Alot of the issue with them and u may not notice it but the holder that the bulb goes into get burnt/worn and that will cause the bulbs to blow due to varrying voltage. Also make sure not to touch the glass of the bulbs the oils from your hands will kill the bulbs. If u do touch the glass make sure to clean them off before installing.