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Battery location?

(2006 Mercedes-Benz CLS500)
in Woodstock, IL on October 23, 2009
where is the battery located?
Displaying 2 answers & 1 comments
Popular Answer
on October 11, 2010
There are two batteries on the CLS500. the main battery is located in the trunk on the passenger side under the trunk mat.
There is also a small 12 AH auxillary battery located under the hood beneath the cabin air filter housing, passenger side. This aux battery maintains the electrical system in case the main battery is discharged. It will not start the car.
on May 26, 2011
There is a lighter plug located in the trunk on the driver side , do you know if the source of this plug is coming from the 12 AH auxilary battery or from the main battery that is located in the trunk.

Thanks
on October 23, 2009
I believe the battery is under the rear seats or perhaps in the trunk. Try a Mercedes fan forum, or subscribe to something like www.alldatadiy.com to get the specifics.
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