Wassup guys!!! So i need some help, so I HAD to change D2s HID BULBS because the passenger side went out. I went on amazon and bout the HID bulbs for $9bucks. Hey doesnt hurt to tey them out better then paying $75 or more. So i took the chance and once they came in i replace the passenger side and it worked perfectly, dont know how long it will last but it works. Now i just didnt have time to change the driver side plus it was still working. 3days later i decide to change the driver side. But i wasnt to lucky with the 2nd bulb that i got from amazon as it would just flicker and turn off. So i put back the orignal bulb and it was back to normal. So the next day i went thru a carwash and when i can back home the drive side bulbs was out. When i jacked up the car took tire off and fender i saw that the outer casing was hanging i guess i didnt put it tight enough. So i took the bulb out and back in made everything was tight but still nothing. Now what could it be? After the carwash that when it happened? Please help

 

Swap the working bulb into the non working side.

 

Okay but it will take me a minute cause i need to take off tires

 

Do you think water messed up? Or is it the bulb?

 

You're doing it wrong.

Turn your steering wheel and go in from behind.

Both. I think you shorted something.

 

Ok so i took the working bulb and put it in the driver side. And no bueno. Does not turn on.. is it s loose connection or what?

 

Swap the ballasts

 

As 909 said, the troubleshooting steps for a malfunctioning headlight are to swap individual components from the working side of the car until you narrow down exactly what the problem is.