July 19th, 2010 
David 
Corey asked:
My remote still works but aftering pressing the lock button about 10 to 15 times, and my drivers side door will not lock manually without the remote. Does this mean the battery is going dead? If so can I change it myself or do I need to take it to the dealership?
My remote still works but aftering pressing the lock button about 10 to 15 times, and my drivers side door will not lock manually without the remote. Does this mean the battery is going dead? If so can I change it myself or do I need to take it to the dealership?
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Taking it to the dealership is the best option if you’re clueless.
Modern technology doesn’t always beat the old fashion way.
TAKE IT TO THE DEALER AND HE WILL EXCHANGE IT FREE.ITS A SEALED UNIT GREY OWL
this seems to be it for a 2004. good website for VW?&id=879114&postid=8145948
answer to replace in a 2001.
the key portion and the remote are 2 separate pieces. you need to pull apart the key side and the remote side it will pull in half. once you have done that take the key side of it and pry in between on the side and it will come apart.the battery is inside of one of the halves.