C3 Audio System Failure

Sounds familiar. Does the display work at all, or is it completely dead? Any static or crackling from the speakers before it went silent? Maybe a Bluetooth problem?

The display works perfectly, shows all the menus. No crackling or static beforehand, and Bluetooth connects fine, it just outputs nothing. I was thinking car speakers, but the complete lack of sound is weird.

Display working but no sound and an error code? That really points towards a defective display unit. Seen it a few times. Sadly, it's probably workshop time. They'll have the tools to diagnose it properly.

Cheers for the input! Appreciate the confirmation – I was hoping it wouldn't be the display itself. Took it to a garage. Turns out you were spot on, display was defective, new one fitted and cost me 725€. All good now!