HELP!! 2013 ML350 Base Aux Battery Malfunction
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Joined: Nov 2018
Posts: 72
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2013 ML350 Base
HELP!! 2013 ML350 Base Aux Battery Malfunction
I have searched all over this forum and even the dealers have told me the Aux battery is located in three different areas. Next to main battery, i the engine bay and in the back trunk right side panel.
Can someone please confirm if the Aux battery on the ML350 is in the engine bay, behind the dash or in the right side of the trunk??
Thanks
Cheers!!
Can someone please confirm if the Aux battery on the ML350 is in the engine bay, behind the dash or in the right side of the trunk??
Thanks
Cheers!!
Super Member
Joined: Sep 2018
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From: Los Angeles, CA
'22 GLE 350 | '15 ML250 | '87 560SL | '19 GLC 300 | '12 C250 (sold) | '02 ML500 | '98 C230
I have searched all over this forum and even the dealers have told me the Aux battery is located in three different areas. Next to main battery, i the engine bay and in the back trunk right side panel.
Can someone please confirm if the Aux battery on the ML350 is in the engine bay, behind the dash or in the right side of the trunk??
Thanks
Cheers!!
Can someone please confirm if the Aux battery on the ML350 is in the engine bay, behind the dash or in the right side of the trunk??
Thanks
Cheers!!
MBWorld Fanatic!
Joined: Apr 2016
Posts: 1,124
Likes: 205
From: NW
2018 GLC 4MATIC
Originally Posted by Eric@wages
I have searched all over this forum and even the dealers have told me the Aux battery is located in three different areas. Next to main battery, i the engine bay and in the back trunk right side panel.
Can someone please confirm if the Aux battery on the ML350 is in the engine bay, behind the dash or in the right side of the trunk??
Thanks
Cheers!!
Can someone please confirm if the Aux battery on the ML350 is in the engine bay, behind the dash or in the right side of the trunk??
Thanks
Cheers!!
MBWorld Fanatic!
Joined: Jan 2013
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From: The Great White North
W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, Taycan GTS Sport Turismo, C5 Z06 & IS300 race cars
Thread Starter
Junior Member
Joined: Nov 2018
Posts: 72
Likes: 2
2013 ML350 Base
Changed the Aux battery today. Thanks to all that posted directions to service it.
I took the voltage using an ohm meter on the old (used) battery and it measures 12.64 volts. It was dropping, but not sure it I should have found a lower number since the computer was asking to to service the Aux Malfunction Battery. I usually got the dash message in the morning upon going to work, so I figure the car was sitting cold and the Aux battery was not recharging.
Anyway I bought a new OEM battery for $48.00 at a MB dealership and did the work anyways. I figure it was the original battery when purchased new in 2013.
Thanks to all again,
Cheers!!
I took the voltage using an ohm meter on the old (used) battery and it measures 12.64 volts. It was dropping, but not sure it I should have found a lower number since the computer was asking to to service the Aux Malfunction Battery. I usually got the dash message in the morning upon going to work, so I figure the car was sitting cold and the Aux battery was not recharging.
Anyway I bought a new OEM battery for $48.00 at a MB dealership and did the work anyways. I figure it was the original battery when purchased new in 2013.
Thanks to all again,
Cheers!!
