Auxiliary battery location W221
Hi,
I have a message "Auxiliary battery malfunction". I have bought a new one (part number N000000004039), but I don't know where to find it in the car? When I asked a parts man at the dealer, he told me that the location in behind the instrument cluster. Can anyone confirm that? It seems to be a very strange place to put battery there. Thanks a lot! |
Deep in the trunk. Behind where your back rates on the back seats. On the bottom right hand side.
Your parts guy knows where it is on a civic, not a Mercedes Sclass. |
Thank you!
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what year is your car? Facelift cars AUX batteries are in the dash, under the steering wheel.
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2010
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Originally Posted by xpl0sive
(Post 6753304)
what year is your car? Facelift cars AUX batteries are in the dash, under the steering wheel.
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From another forum...
Open driver door and unmount lateral pannel of dashboard (1 in picture) Unmount the down side of dashboard (you have 3 screw above pedals )(2 in picture) when you look from pedals in up you will see on lateral pannel (sign with 3 in picture) a metalic box fixed with a screw from outside who keep auxiliary battery. Good luck https://cimg2.ibsrv.net/gimg/www.mbw...1d999e1321.jpg |
Originally Posted by mercedesbenzs55
(Post 6753300)
Deep in the trunk. Behind where your back rates on the back seats. On the bottom right hand side.
Your parts guy knows where it is on a civic, not a Mercedes Sclass. |
Originally Posted by xpl0sive
(Post 6753415)
or the parts guy knows exactly what he's talking about
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Originally Posted by DaveW68
(Post 6753793)
Perhaps he should start banging the panels with a rubber mallet until he finds it.
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Does any one know where the Aux battery is on a pre facelift 2007?
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Originally Posted by dannyjna
(Post 7035528)
Does any one know where the Aux battery is on a pre facelift 2007?
FWIW, you do not need to put a battery tender on the car while changing it. Your presets and everything else will run off your starter battery while you're changing out the aux batter. |
thanks!
This is for 2007 w221 yes? Its a small motorcycle looking battery? I keep getting shifting errors but any faults are under voltage |
Originally Posted by dannyjna
(Post 7035735)
thanks!
This is for 2007 w221 yes? Its a small motorcycle looking battery? I keep getting shifting errors but any faults are under voltage |
2012 S550 battery tender
Hi everyone, read several posts on battery tenders for my 2012 S550. Its still not clear to me regarding the auxiliary battery location. Just got the car and have not checked, but I believe the auxiliary battery is trunk mounted right side behind passenger seat under floor. Can anyone confirm this? Also, the car will be stored about two months, should I place trickle charger on both the cranking battery and the auxiliary battery? |
Originally Posted by Brady9229
(Post 7676099)
Hi everyone, read several posts on battery tenders for my 2012 S550. Its still not clear to me regarding the auxiliary battery location. Just got the car and have not checked, but I believe the auxiliary battery is trunk mounted right side behind passenger seat under floor. Can anyone confirm this? Also, the car will be stored about two months, should I place trickle charger on both the cranking battery and the auxiliary battery? |
Thanks for your input. To be clear, there is not another battery in the trunk compartment on a 2012 S550? |
Originally Posted by Brady9229
(Post 7676419)
Thanks for your input. To be clear, there is not another battery in the trunk compartment on a 2012 S550? |
Battery location
Thanks again, got it |
Originally Posted by DaveW68
(Post 7676158)
In the 2010+ models, the aux battery is a small battery under the dash on the driver's side. Kind of a PITA to change out from what' I've heard....and no options to buy it at an auto parts store. I think it is more of a backup to the main battery under the hood....which controls all of the accessories along with the starting capability. If you are going to put a tender on your battery, you only need to worry about the one under the hood.
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