Ther is only two different keys for the A4.
One with mini light inside, and another one with remote central locking
system. so you wont be able to open your car by pressing the mini light
button... you should have wondered why there is a so small amount of
regards from austria
Programming is very easy. I had the same problem after replacing the battery
of the key and i didn't know how to program it... So I had to open the door
manually... and abraca dabra, somehow I pressed the "open" button in the key
when it was in the lock (or I was turning the key in the lock in the same
time), I saw the flashing lights and after that the remote unlocking worked
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