daltonfss

i am having problems with my alarm which keeps going off i have a 2002 tdi sport a3. when i set /lock the car after about 2/3 min the alarm keeps going off i have tryed to turning off the senors this some times works but not always. also the interior light flashes on and off all the time when engine is running. and i noticed there seems to be a relay clicking some where behind the dash board. is there a way of resetting the alarm or tunning it off or best fixing the problem