Moin together, last week Thursday I was at a longer traffic light phase and I turned off the engine as usual with S/S function. After the start then the engine control started. I am then on Monday to an outdoor to let the error read out. (My next Volvo workshop is almost 80 km away.) There an unknown error P1407 was read out, and then nobody knew what to start with. The error was deleted, but is now back since yesterday evening. Google says, P1407 is an EGR-Temp sensor. The car drives normally as usual, no abnormalities. Does anyone know if you can change the sensor yourself, or where the sensor is sitting at the S60 II, 120 KW Bj. 11 Would otherwise read out an appointment when making a friendly “right” one. By the way, since the start/stop no longer works, is shown “electrical system”. Can this be related to this? Does anyone know where the additional battery is installed on the model? Thanks already, Crashman66