Fog light dust cap stuck

[flipckyLC]

Hey guys, I wanted to change out my fog light bulbs with some new ones and what should have been a 5min swap has turned into an hour ordeal with no resolution. My passenger side cap came off with ease but driver side cap seem to be stuck. I tried twisting as hard as I could counterclock wise and even broke one of the grip tabs on the dust cap itself. I can twist it a little bit before it stops budging. Any ideas what the issue is or how to get around this?

 

[Ager Venator]

I had something similar with my headlamp. Got so concerned about breaking it that I took it to a mechanic (was getting it inspected anyway). They just cranked it on as hard as they could and it came off. Mine didn't break though

 

[flipckyLC]

Thanks, I'll try to get some wd-40 in there and see if that helps. My grip tab broke likely because I wasn't applying even pressure and overstressed that one tab. I'll probably just take it to the mechanic/dealer if wd-40 doesn't work.