![Auxiliary battery malfunction - can anyone shed some light on this and what they've done in this situation? Everything works incl. stop start etc…GLC250d, 2015 : r/mercedes_benz Auxiliary battery malfunction - can anyone shed some light on this and what they've done in this situation? Everything works incl. stop start etc…GLC250d, 2015 : r/mercedes_benz](https://i.redd.it/10m2w3jw9ht91.jpg)
Auxiliary battery malfunction - can anyone shed some light on this and what they've done in this situation? Everything works incl. stop start etc…GLC250d, 2015 : r/mercedes_benz
![Mercedes E350 W212 auxiliary battery location and malfunction DIY fix! Step by step replacement! - YouTube Mercedes E350 W212 auxiliary battery location and malfunction DIY fix! Step by step replacement! - YouTube](https://i.ytimg.com/vi/r2VWVmccdtk/maxresdefault.jpg)
Mercedes E350 W212 auxiliary battery location and malfunction DIY fix! Step by step replacement! - YouTube
![Auxiliary Battery Malfunction | Electronics and Audio | MBClub UK - Bringing together Mercedes Enthusiasts Auxiliary Battery Malfunction | Electronics and Audio | MBClub UK - Bringing together Mercedes Enthusiasts](https://forums.mbclub.co.uk/data/attachments/78/78615-ad48387c4cb5b002803ad495aeee7d34.jpg)