MVDESQ

I have a 2014 E350 4Matic and a iPhone 8 Plus. When I listen to the radio or CD's etc. the volume is perfect and you can raise and lower it easily. However, when I use the hands free Bluetooth lately I have trouble hearing the other person and the volume knob and the volume controls on the wheel do little to help. Is there a setting that I can change in the COMAND or in the iPhone to fix this issue?

Thanks,
Matt

Racin_fool

check the volume settings on your phone. If the volume from your phone is too low (even when using bluetooth music/phone) then the volume will also be low in the vehicle.

thefisch

+1 on checking volume settings on phone first. IIRC you can also boost device volume under BT phone options

tresean1

+1. That is likely your culprit.

mikejosh

I had the same issue. I connected the phone to the usb port and selected bluetooth audio from the Audio menu. Once it was re-enabled the volume worked like it should. I disconnected the cable and it still worked fine.