Driver's door lock

[G Johnson]

Fellow Audians,

My driver's door lock has been a bit odd the past few days.  Mostly
sticking.  I figured it was the cold/snow.

Came out of nail biter, overtime, Gonzaga BB game tonight and the lock
suddenly felt very smooth.  Turned out to be too smooth.
It goes back and forth, and while I hear the alarm beep, the door would
not unlock.  Luckily, I was able to get in from the other side.

Any ideas?

How much $$$.

Greg J