First of all, sorry for my english... i will try to explain the most i can the problem I have, but english is very not my language what i'm good with.

So, it's winter and my driver door cannot be unlock from the outside AND the inside.

I will explain the inside problem later, but now it's the outside problem.

Last thursday, rainy and in the night the temperature drop to -15oC (approx 5oF) so the door and the lock get freezing.

But a friend tell me to check how the lock in the door is made to shoot some WD-40 or other thing to get the lock and shoot at the right place (because some door lock on different car made different: some lock go at the botton of the door and go up after, some go to the right and come back (like a "U") )

And from the inside, if I push my lock to lock the door, it's work, but I cannot push again to unlock the door, the buttom don't want. I need to open my windows and unlock with my keys... big trouble in winter if the windows cannot be drop down!

I hope a solution, because i leave my driver door unlock to be able to enter in the car. The driver door close well, no problem with that (sometime I need to close the door with some more power but nothing more than usual)

So if I can get a description on how the lock of my car is made, to be able to shoot grease and lubricant to get the most % of success!

My car is a Contour 1995, 4 doors, manual trans., 4cyl, 160000Km (99420 miles)

thanks alot