Irregularities in the alarm system of the 2009 Audi Q5 Diesel

Hello, I recently experienced almost the same thing with my 2012 Audi Q3 Diesel (it has around 185,000 km behind it). The alarm system made no sound and I also got a message that the communication had a fault. The fault was actually in the siren itself, which was defective. I had to go to the mechanic, who replaced a cable. It wasn't too much of a problem and was solved quickly. So, don't panic, in most cases it's a minor fault that any decent mechanic can fix in no time. Good luck with it!

(Translated from German)

Hello, thank you for the information, that doesn't sound too dramatic. Can you remember how much the whole thing cost you? And have you had any problems with the alarm system since then or has everything gone smoothly? Looking forward to your answer!

(Translated from German)

Hello, sure, I can still remember it very well. The repair cost 160 €. That went towards fixing the cable connection. Since the mechanic repaired the cable, there have been no more problems with the alarm system. It now works perfectly and doesn't make any more problems. See you then!

(Translated from German)

Hello, that sounds great! 155 is not exactly a bargain, but if it solves the problem and the alarm system works perfectly again, it's definitely a worthwhile investment. I'm much more reassured now and will take it to the mechanic as soon as possible. Thank you very much for your help and your quick answers. They really helped a lot! See you then and all the best!

(Translated from German)

Hi there! I'm experiencing irregularities with the alarm system on my 2012 Audi Q3 Diesel, which has 155,876 km. The alarm goes off randomly and sometimes doesn't arm properly. Any advice on troubleshooting or common issues to check would be greatly appreciated. Thank you!

Firstly, check if there's any issue with your car's key fob. Sometimes, a faulty key fob can send incorrect signals causing the alarm to go off randomly. If the key fob is fine, the problem could be due to a faulty door latch sensor or hood latch sensor. These sensors can trigger the alarm if they falsely detect that a door or the hood is open. If you're not comfortable checking these yourself, I'd recommend taking your car to a mechanic. It's important to address this issue promptly as it's related to the security of your vehicle.