hal

Hi all, new to Audi forum. I bought a 2010 A3 Quattro 3 weeks ago and I can't lock the doors cause intermittently the alarms sounds with lights flashing. I went to a garage who has a computer that can read codes and I had 0143 glass break sensor. I searched and searched forums but found only similar problems in 2006 cars and older so I wont rely on that.
Can someone help me this problem? I can't stand it anymore.