QUOTE(cleaner @ Jul 6 2016, 01:21 PM)
Change both side at once, normal branded h7 bulb like koito, bosch, osram, philips cost around rm12-rm15 at spare part shop.
Easy to diy just that have to follow bulb marking for correct alignment beam pattern
Ya...saw that too. I also surprised that Alza has this issue.
What i noted is that:
1. Mechanic's fingers are dirty and oily when changing the bulbs.
2. Even diy.
3. Unstable current.
4. With dirty oily fingers, after 1-2 times changing, the socket contact point ended up dirty. So next change it will be no use even fingers are clean.
I got the tips from a friend of mine who is selling performance parts that fingers must be clean.
So i foresee if the socket contact point is dirty, in your next change, use electric contact cleaner to spray then slot in. It is not easy as the plug is within the headlamp...just dont get messy.
I normally changed bulbs on my own. With this 5 years, my alza has 4 bulbs spoiled. (2 headlamp 2 fog)