Whenever I make a call from my 2019 g63 Edition 1 with the built in Bluetooth Audio at high speed (above 60 MPH) the person on the other end cannot hear me well. I am told the transmitted sound is choppy and garbled. I can hear the other person just fine. No issues at lower speed. I am assuming it has something to do with the sound level inside the car at higher speed but wondering if my sound processing in the head unit is defective. Anyone else experiencing this? Tried resetting the head unit and re-pairing with iphone and android and no change.

I'm sorry that a online Pdf manual is not available - stupid but true - there are settings in your Comand that can address that - see your dealer's Product Concierge to go thru outbound/inboud/speed-sensitive phone setting in the COMAND unit with you.

Keep the beat !

Tried changing all the permitted settings with the MB tech but same bad outbound sound quality at high speed. A ticket with MB was started.