Fab3Nottingham

Guys I really appreciate your advice and recommendations but there are already several discussions of these alternative solutions on this board, so let’s go through them again. I am really just looking for someone who’s able to help answering my initial question.

I really liked your suggestion with the rag—very creative! Unfortunately, it won’t work with my plans over the next few weeks, but I hadn’t come across anything like it during my earlier research, so thanks for sharing it. I’m aware of many of the alternative approaches discussed in this and other forums, which have been incredibly informative. That said, to keep this thread focused, I’d prefer not to revisit those broader discussions here. Ideally, I’m just looking to hear from someone who has actually disconnected the battery and can confirm whether the alarm did—or didn’t—go off randomly afterwards. Thanks again to everyone for the helpful input so far!

Thanks so much for the offer—I really appreciate it. Disconnecting the battery itself wouldn’t be a problem for me if I decide to go down that route. I’ve done it before and feel confident doing it again. The reason I’m seeking a bit of reassurance before actually going ahead is that I have other plans over the next few weeks, and if this “solution” doesn’t work (i.e., the alarm still gets triggered), it could cause some complications down the line. I’d rather not go into the details publicly, but if you're curious, I’d be happy to share more via private message. @Everyone: I really appreciate all your comments and suggestions. As a newbie to this forum, it’s great to feel so welcome—thank you!

I’ve already pulled the fuse, but the alarm horn remained completely unfazed. I’m afraid its internal battery will only run out of energy after my neighbours have run out of patience. :-)

I’m fairly certain the sensor is the culprit, as the “door open” alerts and the random car-theft alarms started occurring around the same time. That said, I suppose I’ll only know for sure once a dealer has had a proper look and run diagnostics on the car (in two weeks at the latest, I hope) I also have a few suspicions whether it might or might not work, but I’m still hoping someone here can share their experience. It would be great to hear from someone who’s tried it firsthand.

Thanks very much for your reply. Unfortunately, the battery for the alarm horn unit is located underneath the car and is essentially inaccessible without a lifting platform. My hope is that by disconnecting the main car battery—while the alarm system itself remains powered—the fault will no longer be reported, and the alarm will stay silent. Unfortunately, the alarm button on the B-pillar only disables the motion sensors—either inside the car (e.g., if you leave your dog inside) or external movement (such as when the car is on a ferry). I'm afraid this won't resolve the issue I'm experiencing. I've done quite a bit of research on possible solutions. Suggestions like disconnecting the siren require technical work I'm neither qualified nor keen to undertake. I also tried pulling the fuse, but that didn’t resolve the issue—presumably because of the alarm’s backup battery. In the meantime, I’ve contacted two dealerships—one in the UK and one in Germany—and asked whether disconnecting the battery would stop the alarm. Confusingly, their answers didn’t quite align. I’m still hoping that someone in this forum may have actually tried this and can shed more light on the issue. It would be a huge help to mechanically clueless car owners like myself who end up battling with electronics that seem to have a mind of their own.

Dear All, I own a Fabia III (2015) and I’m currently experiencing an issue where the car incorrectly detects that a door is open—likely due to a faulty door sensor. While this is inconvenient, the more pressing problem is that the anti-theft alarm is being triggered randomly, sometimes during the night, which understandably is causing distress to my neighbours. The earliest available appointment at the garage is in two weeks, and I’d like to avoid further disturbances in the meantime. I’ve been wondering whether disconnecting the car battery would disable the alarm system temporarily. Despite doing quite a bit of research, I haven’t found a clear answer. If anyone has experience with this or can offer advice, I’d be very grateful. Apologies if this seems like a basic question, and thank you in advance for your help!