For AX, I accidentally blowing the air from high pressure air pump into the headlamp through the bulb socket. Then, the mirror loosing itself from the reflector. I pull it off and cleaning with "dish detergent" and water then blowing with air to dry.
After that, I used liquid gasket (Three bond-light grey colour) to fix two parts together. Finally, I can not accept the condition of another side of the headlamp. They are like old-and-new. So, there are some way to clean it.
Never used "Silicone" to fix the glass with the reflector as the reflector will not shine after one night passed. I made it wrong once.
I used the "dish washing detergent" mixed with water putting into the headlamp and shake well. Do it two to three times and rinse with fresh water about 10 times. I think you will know when is enough!
Finally, blowing with high pressure air.
(now you need air pump)
After washing, two side are the same. With new white signal lamp beside the headlamp, they are looking great (like brand new car)
