Problems with the alarm system in Renault Master Diesel model year 2006: tips and experiences

Hi, I had a similar problem with my 2004 Renault Scenic, so very similar to your Master. I would attribute my car knowledge to low to medium experience. I had the ECU checked at a garage. It turned out that the control unit was faulty. It cost me 1000 euros to fix it, which of course isn't really cheap, but it worked perfectly again afterwards. Have you made any modifications to your car that might be causing the problem? Exact details about your car could help me to help you further.

(Translated from German)

Hey, thanks for your quick reply! I haven't made any modifications, it's completely original as I bought it. My Renault already has 147058 km on the clock and the last service was a few months ago. I will probably have to go to the garage and have the control unit checked. It's a shame that it's so expensive, but if it helps... Thanks again!

(Translated from German)

Hey, no problem! Yes, cars can sometimes be a real money pit. Your Renault has already come a long way, but that can hardly be avoided with a 2006 model. Don't be put off by the cost of my repair, maybe you'll be lucky and it will be a little less complicated and therefore cheaper. Good luck and hope that your problem is resolved soon. If you have any further questions, please don't hesitate to contact me!

(Translated from German)

Thank you very much for your encouraging words! I also hope that my car will be cheaper. I will definitely get in touch with you if I have any further questions. Thanks again and fingers crossed that my Renault will be running smoothly again soon!

(Translated from German)