So since I got my '09 A4 a few months ago, the drivers side door sensor has been hit or miss. It works about 20% of the time. Lately however, the sensor has been locking when I put my fingers around the inside of the handle. I'm not sure where to begin with fixing this problem. A few months ago I had someone check vag com and no faults were found for the door sensor. Any advice is much appreciated!