Brera Alarm problem
one of the problems my Brera had from new has finally been disgnosed and fixed. It was quite difficult for the garage and Alfa themselves to diagnose, so I am posting the solution here, in case anyone else has the same problem.
The symptoms are:-
1. alarm going off randomly for no reason (i.e. nothing near car, no wind)
2. alarm occasionally beeping a second time after arming
After the garage replaced the rear interior sensor the following also was seen:-
3. on starting the car "Alarm not available" shown on dashboard
4. the econd beep sounded every time on arming the alarm.
The problem was because the alarm sensor fitted to the passengeer door was a "master" sensor which conflicted with the "master" sensor in the driver's door. It should have been a "slave" sensor.
After replacing this part the alarm is now working correctly.
Hope you don't suffer this fault - but if you do, hopefully you'll read this.