

Anyone encountered this malfunction in EQB 250+
Hi guys, over the past few days I've been getting the following malfunction notice every startup. There is no noticeable drop in output or acceleration or perhaps I'm not as sensitive to such changes.
I did have a dashcam installed with 24 hour parking surveillance tapped into the 12v battery. However, in the MB app my 12v battery consistently says charged or partially charged at times.
I did send the car in to a service centre for battery health check, but they refused to work on it or diagnose the issue because they want me to remove the camera wiring from the 12v battery first. Apparently this may void the warranty.
I have since had an external battery pack installed to power on the camera. The camera power comes from this battery pack, and the battery pack is plugged directly into the cigarette socket for power and charging. As such, it no longer taps directly into the 12v battery.
However, the malfunction still pops up at startup. Granted this rewiring has only been done a day ago and perhaps not enough time has elapsed for changes to occur. Next available service appointment is 3 days away.
Car is 2.4 years old and is the 2024 EQB 250+ series.