I spilled water on my macbook pro about a year ago, I quickly flipped it over and removed that battery dried it off and allowed it to sit for hours before attempting to turn it on, the only damage I had was a few keyboard keys that were not working. Recently though my GPU failed in what I believe to be a result of this: http://support.apple.com/kb/TS2377 . Will Applecare still cover issues unrelated to the water damage, or does the water damage void all applecare coverage regardless of it being a result of the water or not.
Update: So I did what Panzer06 suggested, took it to a local authorized service center, (Its what I had planed to do because there aren't any apple stores for 100 miles). I was going to tell him the whole story that I posted here, but he never even asked how it happened, he just wanted to know what was wrong. I told him my GPU died and he just said ok, it will be ready by friday (Last week). Then I got a call on friday from him telling me that he replaced the logic board but when they turned it on for testing the keyboard failed so he put an order in for a new keyboard, and today I came in and picked up my computer, everything was repaired on Applecare's tab, it was wonderful.
Update: So I did what Panzer06 suggested, took it to a local authorized service center, (Its what I had planed to do because there aren't any apple stores for 100 miles). I was going to tell him the whole story that I posted here, but he never even asked how it happened, he just wanted to know what was wrong. I told him my GPU died and he just said ok, it will be ready by friday (Last week). Then I got a call on friday from him telling me that he replaced the logic board but when they turned it on for testing the keyboard failed so he put an order in for a new keyboard, and today I came in and picked up my computer, everything was repaired on Applecare's tab, it was wonderful.