Fixing the “Auxiliary Battery Malfunction” Warning in a Mercedes — EurAuto Shop
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
Fix Mercedes-Benz Auxiliary Battery Malfunction
Auxiliary Battery Malfunction: Mercedes E Class W212 Replace - YouTube