In two other threads I have already presented my problem on the subject of no heater and no start/stop. Also the hint of a master that you should think about a battery charger with so much technology with only occasional use, can not really calm me. Since the car was just at the annual service and I addressed the problem battery and also the warranty expired in December, without which the problem seems to have been solved, I would like to know from other sufferers whether and how you have been helped in the long term in order to sensitize the workshop with the troubleshooting. I look forward to your answers.