I have a E350 2014, received the signal Auciliary Battery Malfunction. What is it? is it serious, should I take it to the Dealer under warranty?

Asked by Sep 21, 2015 at 07:35 AM about the 2014 Mercedes-Benz E-Class

Question type: Maintenance & Repair

I have a E350 2014, received the signal Auciliary Battery Malfunction. What is it? is it serious, should I take it to the Dealer under warranty?

6 Answers

104,215

This may help, Copy and paste....http://www.benzworld.org/forums/w212-e-class/1572334-auxillary-battery.html

21 of 21 people found this helpful.
8,795

If it is under warranty - take it to the dealer for inspection. IF it is a battery and if it is not under warranty - just tell the dealer "thank you" and go buy it elsewhere for a lot less money.

3 of 3 people found this helpful.
90

Small aux. Battery located under dash on drivers side, enables trans. To be shifted out of park if main power is lost.

9 of 9 people found this helpful.
80

The auxiliary battery also is used in the ECO functions to restart the car when it 'shuts off' while stopped and operates the HOLD function (keeping the car from moving) while stopped for a traffic light.

2 of 2 people found this helpful.
80

Also, the aux battery in my 2014 E350 is in the trunk under the spare tire.

6 of 6 people found this helpful.
20

Yes it is in the trunk, not in the dash. About $145 at the dealer.

2 of 2 people found this helpful.

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