Hi all, I am a recent owner of a 2001 Audi A6, I bought this car used and received only one key which is not even the master key (fob). Now I can use this key to manually open the driver's side door, but with difficulty, as the lock will pop up but even after 2 or more yanks on the door handle it won't open until I give the driver's door a little push while holding the handle up. Also, none of the other doors will open when I open the driver's door with the key. The central locking button on the driver's door isn't working and once inside the car and the door's a locked there's no way of getting out, not even by doing the double pull on the door handles from the inside, it'll just pop the lock up but the door won't open. Can anyone please assist as my car is literally a deathtrap right now.