I had something similar going on with my Tourer when I got it a year ago. Alarm kept going off - I too ended up disconnecting the battery at night.
Mine turned out to be door wiring.
Even with all doors shut dash often said one was still open. My mate who works in a garage selling second hand cars said he'd had this with cars before. He fixed mine in a couple of minutes. All he did was go around each door,open the door and wiggle the rubber grommet between door pillar and door about,moving the wires about a bit I guess. When he did this to the drivers side rear door and shut that door,the door open icon on dash went out and the alarm hasn't gone off on it's own again since.
Might not be that on yours but worth giving all the wires between doors and door pillars a wiggle. Paul
|