2015 GLK 350 Auxiliary Battery Malfunction light is on. What does that mean?

Asked by CushGuru Jun 13, 2018 at 10:26 AM about the 2015 Mercedes-Benz GLK 350

Question type: General

What does "Auxiliary Battery Malfunction" light mean?

4 Answers

3,295

That the Aux. battery (about the size and power of a garden tractor battery) is dead or near death. Not too expensive, so replacing it may be the simplest action. You should be able to do it yourself.... there are videos out there, also.

28 people found this helpful.
3,295

in the cargo area, under the floor on the right, below a plastic over. 2 Torx bolts and 2 10mm nuts to remove cover. Simple R and R from there.

10 people found this helpful.

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