Electrical related

Hello, Dave here, contributing to RepairPal and providing expert advice since 2010. Your questions are a bit tricky for us - in the United States, we've never seen the Micra or its Diesel powertrain. But I'll attempt to weigh in on theory alone. Anytime there is a concern of electrical issues, my initial thought is starting at the 12 volt engine battery. Although your data suggests it's reasonable output voltage, there is not appear to be a test result for a static battery test alone. The battery should be tested for the ability to sustain alone plus reserve capacity and possible internal bad cells. If you have a questionable battery, all kinds of electrical concerns can become present. Do not forget that your engine and vehicle rely on constant and steady voltage from the battery at all times, even when it is being charged by the charging system. Anything that disrupts electrical system integrity can cause all kinds of electrical issues. Have your battery professionally tested first, and make sure you have a known good battery installed in the vehicle. If all is well there and concerns continue, it will take some hands on testing off various electrical components to see what is going on. I would send you a link to RepairPal certified shops near you, but it appears with this vehicle you cannot be in the United States -- so I will just encourage you to find a shop near you for guidance. Good luck.