That seems to have updated for the plug in adapters for the phone / MM system and not actually for the head units. When you do a firmware update on the newer units it talks to MB central systems so they know the update has been done and downloads the configuration (which can change between different software versions) - also everything in the audio system gets updated (so if you have HK, the HK amp or DAB etc etc)
The updates are now also large given how complex the systems are ..
Yeah it’s a W204 but came very well specced. Has Comand, heated seats and reverse camera as well as DAB and pano roof. Think it was a ‘special edition’?
Upgraded speakers? Have to say I’ve been really impressed by the standard set up.
Did you choose not to have DAB installed due to the dropping out issues? That’s why I’m asking about the firmware as it keeps losing reception on ours. Had the same issue in my 2012 W212, but had he firmware updates and it’s fixed it up a treat.