I change all the A/C bulb (one bulb burn, must as well change all 4), the hazard light switch bulb (my was burn also).
For Malaysia (KL especially), if you buy the bulb in pasar road, please bring along a sample. Cause in pasar road they got only 2 size, i.e. small and big. Don't have the medium that we need. Like Edgar say, the bigger one can fit.
not many shop selling the big one, got to look around, i only found one shop selling it after asking more than 10 shops. Price RM 1.50 per bulb, i brought 4 x big bulb and 2 x small bulb RM 1.20 each (for the hazard light siwtch).
Total its RM 8.40, fitting the A/C bulb its easy. but the Hazard light its a pain in the Azz.. you need to dismantle the switch cause the tiny bulb its inside the switch, once the switch open please remember how it look and connected.. cause once take out its a puzzle to put back. The bulb its right in the middle of the switch. Change bulb only 5 mins, puzzle solving its 30mins.
I guess the rear defog switch its also the same, maybe more complicated cause it got two bulb.. If i am free, will try to change that also since i got one set spare from the 1/2 cut.