Captiva Weak Battery Sensor

I had almost the same problem with my Captiva. The symptoms you describe are indeed indicative of a failing battery sensor. It is likely the sensor is providing inaccurate data to the car's charging system, leading to undercharging and the issues you're experiencing. Did you perform any specific battery testing, and do you have any data on the battery's health or voltage readings?

The testing involved a standard voltage check, revealing a slightly lower voltage than expected. A more in-depth analysis suggested irregularities in the sensor readings. Could you elaborate on any specific tests or observations you encountered?

Yes, our experiences align very well. I also initially noticed a slightly lower voltage reading. Further diagnostics confirmed the battery sensor malfunction. I would advise having a qualified mechanic assess the sensor's output with specialized equipment. It might be best to bring your vehicle to a workshop; preemptive replacement can save you from being stranded.

Following your recommendation, I had the vehicle assessed by a trusted workshop. The defective battery sensor was indeed confirmed and replaced at a cost of 315€. I hope this information could be of help to other users as well.