Locking my car but after a while the car unlocks itself and windows are going down on their own

Did you lose a key inside of it?

If the interior door handle doesn't open the door, then you have a push bar loose or bent inside the door. If once you unlock the door from the outside you can use the interior door handle to open the door, then you either have a bad lock unlock relay, or the door lock unlock actuator itself is bad.

Look for a vacuum leak under the rubber bellows at the door hinge area. This generation VW had vacuum actuated loor locks and the connections could come apart, typically in the hinge areas where flex occurs.

dont know if you recd my previous so again...unlock/hold over windows go down,lock/hold over windows go up/sunroof closes.(alarm/immobiliser resets)....key stuck in lock, pull hard when upright,moving the key up/down when pulling, should do it.also bootlid lock two positions,turn left,then release or turn right and release,see what happens......(boot isolation from the central locking)

you have just found this out.it is a standard feature of all vw/audi/seat/skoda cars
unlock/hold key over,the windows will go down
lock/hold key over the windows will go up
then unlock the car with the remote,car reset.
sit in car with engine on,switch off engine(do not open any door)driver can open/close any window(you can even put your hand into window frame and it will rollback,all on its(not for fun)
if windows rollback after you have used button to close them you may have sticky runners/rubbers.
this is not in the hand book,tell all your friends.....only a german car.....

this is a std feature....no really, its what vw call safety rollback... to reset ...take key out of ignition,lock car,leave for 15secs,then unlock car with key.holding key over untill all windows are down fully then take key out wait 15 secs put key back into door and lock car,windows will shut hopefully all the way this time...if you put your hand in whilst closing window it will "rollback"with key in ignition... NOT DOOR.

I have shaved door handles on a 2000 chevy silverado and the drivers side door just recently stopped opening it seems like its completely locked out and the door is closed so i cannot get to the bolts of the latch assembly when i hit the unlock button it unlocks half way and when you go to open the door it relocks itself even if you manually try to unlock the door and hold the lock forward it still wont open

if you hold the key in the trunk or drivers door, to the unlocked position for a few seconds the doors will unlock and the windows will all go down. usually when this happens by its self the body controll module is to blame. it could be the electrics on the drivers door lock broke in the unlock possition. the door handel/lock is a nightmare to replace. i would get a used body controll module and plug it in and try that first

You need a body control computer, which controls the windows, door locks and other items. The new computer will have to be programed by a good imports shop or Nissan dealer.

time to take it to a shop, you need a new power window motor regulator :(