2012 CLS battery missing from the trunk

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Old Sep 22, 2016 | 07:42 PM
  #1  
sirric's Avatar
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2012 CLS550
2012 CLS battery missing from the trunk

Hope someone can help me, My 2012 CLS550 did not crank this morning, so dead battery right, I get home to jump with my 2nd car and it won't turn over after 15 minutes. I go to check the battery in the trunk and it's not there. No wires, no indication that a battery was ever there.

Is this normal or did someone steal my battery?

Am I going crazy? It was locked in the garage all night and was never broken into. I did have it at the dealer for warranty work 4 months ago that dealt with the clock and radio. But it drove fine that entire time.

Is there a case where a 2012 CLS didn't have a battery in the trunk?

Thanks for any help.
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Old Sep 23, 2016 | 02:26 AM
  #2  
Vin Vo's Avatar
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2014 cls550 4matic
Your main battery is actually under the hood near passenger side. Cars that is equipped with eco mode have spare battery in the trunk.
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Old Sep 23, 2016 | 07:44 AM
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2012 CLS550
Vin,
Thanks for that info,
Everyone, from Battery stores to the dealership to online battery replacement sites, kept talking about the battery in the trunk needing to be replaced. I guess they all assumed I have the Eco function. I do not. Seems that I have the first few roll-out of 2012 model that didn't come with the Eco function.
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Old Sep 23, 2016 | 12:07 PM
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'71 Pinto
2014 CLS550 MBUSA introduced ECO (B03 on data card) as stated, your starter battery is in engine compartment.
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