Demystifying Auxiliary Battery Malfunctions A Path to Recovery

Just replace it yourself, and save the money. They charge an arm and a leg for a super simple job and cheap part on a Metris. My 2016 GLC has just started with the auxiliary battery malfunction error message. I intend to check the fuse 448 first. Root cause?! According to the electrician, he found a groung cable near the área where the battery is, that had high reistence and could be ... You will need to replace the auxiliary battery located in the trunk area. I've attached pictures with instructions. Did you get the dreaded "Auxiliary Battery Malfunction" alert in your vehicles instrument cluster screen? In this DIY how to video, ... There's only a single aux batt. Could be bad -- so long as the truck isn't driving, you could disconnect the aux batt overnight to see if the issue persists. Mine was replaced by my mechanic, when I got it back the battery malfunction indication was gone. I don't know whether he had to do anything ... It happens after a new battery is installed and the previous battery was flat. So, drive the car around more with this new battery and the problem will go away. AUXILIARY BATTERY MALFUNCTION ... Many Mercedes have the main battery and a backup battery known as the auxiliary battery. If it is the auxiliary battery that ... It is highly recommended to disconnect the battery terminal when doing anything in the car, Open the carpet and it is easily seen, remove the plastic cover and ...