LMFAO. $700 to replace the headlight assembly. It's a 15 minute job and requires like 12 torx screws for the front bar on the side you need, then 4 10mm bolts.
Always heard horror stories about people being ripped off for auto work, never truly believed it until I've read a lot of the posts on this forum.
There are many threads on this. pls use search. I think a mod should sticky a mega-thread about it. Here is one with a lot more info on it.
So, my drivers side headlight has given me nothing but issues as long as I've owned the car. It's accumulated water, which I plan on pulling it out and attempting to reseal. Ballast is fine, I can get a good 6 months out of the HID bulb before it gets wet and I have to replace (those suckers are...
buickforums.com
OP, your headlight lens was sealed to the assembly with permaseal. Quality name for something that isn't permanent and fails constantly. The seal broke, usually near the corner (towards the middle of the car) and water seeps into the headlight assembly. The ballast that controls the headlight (low and high beam) fills up with water as it is at the bottom of the assembly and water literally drains directly into it.
The only way to fix this properly is to remove the lens from the assembly in an oven, painstakingly pick all of the permaseal out, and reseal with some (rather, a f$%k ton of) butyl rubber (retrorubber is one product) and hope and prayer that it doesnt leak again. Replace the ballast, obviously. Amazon has knock offs that work fine. Same ballast is on some BMW headlights apparently. Hope to god water doesn't get on your LED controller module.