Hello, on my A3 8Y 35 TFSI S-tronic I have a noise in the cockpit. A "beep" which comes from the 48V battery when the engine restarts after having driven in freewheel mode or after the start and stop. To put it simply: when the engine is switched off either by stop and start or by freewheeling mode, a green circled A warning light lights up on the instrument panel, and it is when it goes out that the "beep" of the 48V battery is heard just when the engine restarts. Do you have the same problem ?