I have a 99 a4 2.8 and i was just wondering what i would have to do to replace the lights with some hid lights. I've seen headlight replacement kits, and then i've seen just the regular bulbs themselves. There is a huge price difference so i was wanting to know which i should get and if i need to get the ballast? or something like that so they work.

 

Hi welcome to the forums... make sure you do a search because i believe that this has been covered before. If you cant find it then by all means we are willing to help

 

i've tried to find help, but i'm still confused about the whole thing.

 

Do you have a 1999 or a 1999.5? Do you have projector headlights (99.5)? I would not retrofit xenon into the old style reflector housings, as the light output will be crappy. If you want to go all out, pick up a set of of E-code Euro headlights from someplace like Ecstuning. As for a xenon kit I would recommend http://www.oemhid.com

If you are looking at cheap bulbs that claim to be xenon or hid, they are scams. It is just a halogen bulb with a small amount of xenon gas inside. A true xenon (HID) system consists of the ballasts, bulbs and ignitors. Expect to pay over $200 just for the xenon kit.

 

how do i find out if it's the 99 or the 99.5?

 

I just told you. If your car has projector headlights then it is a 99.5 if they are the old glass block headlights that are almost frosted looking then it is a 99. Also the 99.5 has the fog lights in the lower bumper where the 99 has them integrated into the headlights.

 

well then i've got the 99.5.