How To Reset Auxiliary Battery Malfunction. The auxiliary battery is the one in the front. Once you remove the two bolts you can slide the old battery and the bracket out.

Then in this case you just need to unscrew positive and negative terminals bolts remove old N000000004039 auxiliary battery from its original location and put new part back once fitted auxiliary battery malfunction error code will dissapear automatically there is. Ever the Drama Queen he decided to flash this warning up on the dash in red letters and accompany it with a repeated warning. Still you dont want to wait too long to fix the problem as it can lead to more serious issues down the road.
We found the battery which is really a capac.
What happens when auxiliary. Were working on a 2015 C300 in this video. If the battery is still good your only option is to remove the cars battery and charge it with a 12 Volt Smart Charger then reinstall. ML-Class W164 and GL-Class X164 Auxilary Battery Replacement.
