Mercedes GLS Diesel Software Malfunction

That sounds rough. I had something similar happen with my old Vauxhall Astra except there were engine issues. Is there one specific electrical thing that isn't working or is it just random stuff?

The electrical malfunctions appear to be somewhat random, affecting different systems intermittently. When you had similar issues with your Vauxhall, did the problem stem from a general software glitch, or was there a specific module that was causing the problem?

With the Vauxhall it was a total nightmare. The whole system needed a recalibration, which they blamed on bad software. Your symptoms sound pretty familiar. I'd take it to a workshop. They'll probably run a full diagnostic check to be sure, but it sounds like a software thing to me.

I took the vehicle to an authorized service center. They confirmed a software recalibration is needed to resolve the software malfunction. Thanks again for the advice.