Started the car this morning. Not a squeak from the speakers. No radio or media output. The phone connected but didn't play out over the speakers. Had a rudimentary glance but couldn't do much because i was driving. The warning sounds come through. Although the car in front didn't appreciate how close I got to him at the junction to prove the front sensors.  

There's nothing blindingly obvious. Sometimes in a morning it won't play DAB but I just switch to FM and in the evening it's back on. I thought ti might be that but, no. Nada, nothing, not a peep. Any suggestions would be greatly received. I'll go out at lunchtime and try them.

You haven’t accidentally muted the system, on the Yeti if you pressed the volume roller on the steering wheel, I presume the Kodiaq is the same. The only thing I’ve noticed on the Kodiaq is is if you accidentally touch the power button on the screen, this mutes the sound.

I don't think so. I tried all the obvious things. There's no icon showing to say it's been muted. The power button is an actual button. It's not part of the touch screen. If you press that, it turns the whole system off..........and yes, I did try the old off and on.........twice.

Did you try the volume knob on the infotainment system as well as the one on the steering wheel? There have been cases where the knob on the steering wheel has failed, but the one on the infotainment system still works. 

Tried them all. Forgot to go out at lunchtime. Got in the car tonight and everything came on. No problems, issues etc. Phone connected and working. I’ll keep my eye on it. It’s due a service in a 1000 miles. I’ll mention it to them.

 

Good to hear - if a little puzzling. FYI I checked the mute function. On my Superb it is as Kenny R says: pressing the wheel volume button mutes the radio but be aware there is no mute symbol (at least that I could see). So worth checking if it happens again. 

I checked the mute via the steering wheel and it doesn’t mute the speakers when using the phone. Nothing worked this morning.