Couple of questions
 

Last night I drove my car, picked up my friend and I realized my automatic door locks were not working right. It would work when I go to lock the door, but when I go to unlock it would try but wouldn't have enough umf to unlock it. Today I took the door panel off and was lookin at it then just unlocked and locked the passenger door a bunch and then tried to use the auto door locks using the drivers side and it seems to all work fine. I'm not sure if I just loosened up the oils or what the deal is. Anybody else have a problem like this?

Also, my car smells like burning my friends say when we get out of it. I don't smell it really because I guess I'm used to it. Sometimes I see a drop of oil under it, sometimes not. I check my oil level and it's always at full and I never have to add oil to it between oil changes. Or would it just not be enough oil to make a difference?