Citroen Nemo Rear Window Heating Issue

I had something similar with my Nemo, though I never found the exact cause. Your symptoms sound familiar, especially the rear window heating and windshield heating connection. I can't say for sure about the battery, but it's worth checking. Have you checked the voltage?

Thanks, I did measure the battery voltage, and it seems normal. Did you see any error codes related to the heating circuit or battery when you had this problem?

Yes, there were error codes for the heating circuit. After checking fuses and wiring, I took it to a workshop. They found corrosion on the heating coil connector and replaced it. They thought it could be a wiring harness issue. If you have a multimeter and know how, check there. Otherwise, see a technician.

Thanks for the advice. I consulted a technician, and the repair cost 290€. It turned out to be a defective battery, which fixed everything. Thanks again!