Hello together, when turning off our VW Fox 1.2l it often comes to a whistle (no gong, like the warning sound, when the light was turned on) right after the engine is switched off (but before the key is pulled off). We were already in the workshop because of this, but nothing was found there (error memory was empty) and the warning sound did not come of course. Is this problem known to anyone? Does anyone know the cause of this?