Bmw f30 330d loss of internal sound

[Wilcox538]

Hello
First time poster, hope you help me. A week ago my radio/cd / telephone calls intermittently cut out for a second or so . Much to my frustration this morning there is no sound at all from either audio source or parking sensors .
Sometimes it will come on for a brief second whilst driving .
Can anyone please help?

[vsonix]

If it's an F30 do you not still have BMW warranty? Because I'd be taking it to the dealer first if the systems are playing up. Otherwise the first thing I'd do is disconnect the battery overnight so the systems can reset. I'm not too familiar with earlier models but it may be also that there is some firmware or similar to update...