u/AdRepresentative7304

Out of nowhere the other day I experienced issues with my car that’s been faultless for the last 4 years. I got a warning on the dash saying “traffic sign assist inoperative” then over the last few days I got in the car Ive had these issues.

\- screen on but couldn’t adjust volume or change from radio

\- navigation wouldn’t load

\- reverse camera changes to screen and camera pops out but no picture

\- Bluetooth wouldn’t connect

\- 50% of the time screen doesn’t turn on

Spoke to my local garage who have looked after my cars over the years albeit not a Mercedes specialist and they said it may be the second battery at a guess but could also be a multitude of things. Any suggestions?