Greetings to all - and my sincere apologies for asking what should be an easily-answered question via the handbook.... but it doesn't seem so.
My bluetooth audio seems to be off - and the system tells me to activate it via settings. Well, I just cannot find where to do this, there's nothing in the handbook and I just go round and round following the on-screen instructions😡
I've tried via the 'phone (iPhone7+) which always previously worked well - and still shows as connected.
Any ideas please? MY14 SD$ with the posh Meridian HiFi system.
Many thanks,  I've decided to stop being a good example and will now just be a terrible warning.....
2008 TD4HSE - gone but much loved.
2014MY SD4 Metropolis - very much loved.

This happened to my 2014 model also. I seem to remember disconnecting the battery overnight, a shorter time may suffice, then it sprung into life. Worth a try.

I had to replace the CD Unit which includes BT in it in my 2014.. check the post here

https://www.freel2.com/forum/topic38269.html