Problems with alarm system and weak battery in Citroen DS3 petrol engine (2012) - experience and solutions wanted

Hey, I had similar problems with my 2010 Citroen C3 diesel. I wouldn't call myself a car expert, but I do have a bit of experience. At my garage they found that the base module was faulty and it cost me about 465 euros to replace it. It could also be this module in your DS3, but without further vehicle information I can't say any more. What type of alarm system do you have? Are there any error messages? Hope this helps you!

(Translated from German)

Hey, thanks for your quick reply! so I have the standard alarm system that came with the car. I don't get any error message when starting up, it's just the alarm that keeps going off and the constantly low battery that bothers me. KM reading is 50559 km and last service was done last month. Do you think it could also be the basic module in my DS3? And do you think I should take it to the garage or could I fix it myself?

(Translated from German)

Hey, thanks for the further info! Well, given your mileage and the fact that the last service was only recently carried out, it could actually be the basic module. Especially if the alarm system is messed up and the battery isn't working at full capacity, this may well indicate a problem with the module. However, I would recommend that you take your DS3 to a garage. Even if you have a bit of knowledge, such repairs are really tricky and usually require special tools. Don't end up breaking more than you repair. Hopefully it's not quite as expensive for you as it was for my C3!

(Translated from German)

Hey, thank you very much for your advice! It reassures me that you had similar problems and were able to solve it. I think I'll follow your advice and take it to the garage. Better safe than sorry later. Hopefully it won't be too expensive. Thanks again, you've really helped me. Hopefully I can drive again soon without stress!

(Translated from German)