(warranty is expired so don't be shy)
*Cough*...
Understand this thaq93 if it is opened, or tampered with in anyway Sony will not fix it at all. The over heating problem leads to a few things, the most common is the blu-ray failing. Yes, it costs 150$ to have it fixed by Sony, I have been through this twice. However once they fix it you get a new warranty from them.
They will not, under any circumstances fix your console if:
Invalid Service Request Number is listed (This is on the form you'll include in the box to them)
Excessive wear and tear, neglect, abuse, accident and/ or modification not performed by Sony.
(including scratches or dings that COULD be from drops, painted case ect)
Serial number sticker / label has been tampered with, cut, ripped, removed.
I've seen all of these previously, if the label is not perfectly flat they assume the worst. (happened to a friend)
Oh and the kicker, they won't return the money because the console will have been examined before repaired.
So if there is any chance you'll need to send it to them, (my overheating lead to yellow light) don't open it or mess with it, you'll get back a broken console and no money.
-TwisT