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Discussion Starter #1 (Edited)
I'm away from home and my wife called and said our 2016 Ed 1 has no response when the key is turned on. No dash lights, nothing.

Trying to help remotely as I won't be back for a couple days. My first inclination is to suspect the battery, but the fact that it's completely dead is suspect that it may be a fuse or something else. Any advice? I can certainly pull the battery when I return and have it checked it I'd like some input from you fine people

Thanks in advance
 

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Discussion Starter #3
@;
Sounds to me like a dead battery.
I am actually hoping that you are correct. Awful strange that it would go from " working fine" to " absolutely dead" in a couple days. Hoping that there is not some type of odd parasitic drain causing it.
 

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When you say no response when the key is turned on (dash lights, etc...)... is that ONLY when the key is turned, or does absolutely nothing turn on when the door is first opened, either? Interior lighting and the IC display? I'd even say check to just make sure the battery is still connected firmly. Already had vehicles where everything seemed fine and dandy, but as soon as you'd turn the key, there would be a faint click, and nothing... and it turned out to just be a somewhat loose battery connection.
 

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Use the warranty and have them pick up the car and bring her a loaner. That's what good customer service would be for such a new car....
 

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Discussion Starter #6
The car has absolutely no power. No Lights when you open the door. Nothing

The dealer is 120 miles from me, and I will certainly hit them up if it turns out to be something other than the battery Returning home tomorrow, so I will inspect the connections and check the load on the battery
 

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auto lights/auto wipers like a 451??................

I seem to remember on a 451,leaving the auto lights/auo wipers in the ON position,would drain the battery very quickly. Has
smart fixed the problem on the 453,or does it continue??.................
 

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Discussion Starter #8
Hmmm. We certainly do leave the Auto lights and Auto wipers on. Seems pointless to have them if you have to turn them off when you park the car
 

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I seem to remember on a 451,leaving the auto lights/auo wipers in the ON position,would drain the battery very quickly. Has

smart fixed the problem on the 453,or does it continue??.................


Not sure what causes this, but have owned my 2013 since March 2016 and have always left auto lights and auto wipers on with no ill effects on battery.


Sent from my iPhone using Tapatalk
 

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Believe the battery drain from auto wipers was only an issue in the earlier 451's. Believe auto lights/wipers were originally offered on the 2008. On the 2009's i don't even think they were an option... possibly the 2010's too, but not sure on that.
 

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Believe the battery drain from auto wipers was only an issue in the earlier 451's. Believe auto lights/wipers were originally offered on the 2008. On the 2009's i don't even think they were an option... possibly the 2010's too, but not sure on that.
I had them on my 2008, left them in the auto position weeks on end without driving the car, never had a problem.
My 2009 does not have them.
 

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make sure you update the thread with the actual problem
I had a similar issue and it turned out it was the battery terminal
For some reason it was not coming in contact with the positive battery cable.
Good Luck
 

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Discussion Starter #14
Well, The simple answer is true. The OEM battery failed according to the test at AutoZone. One year old

I opted to just buy a new one rather than deal with warranty from the dealer 120 miles away

Back up and running!
 

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I would think that a call to roadside would have gotten you that new battery on Mercedes' nickel.

Len
2014 EV Coupe 13,000 miles
2014 EV Cabriolet 2,500 miles
 

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Discussion Starter #17
I would think that a call to roadside would have gotten you that new battery on Mercedes' nickel.

Len
2014 EV Coupe 13,000 miles
2014 EV Cabriolet 2,500 miles
Perhaps, but the logistics to the dealer and the time gone wasn?t worth the hassle.
 

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Discussion Starter #19
what size and type battery did you put in?

Did you upgrade or just go stock?
AutoZone Duralast H5-AGM. It is identical physically to the OEM. It is a bit of an upgrade since it is an AGM battery. They had a standard version for only $5 less, but I like AGM batteries because they can be more resistant to shock and will never leak
 

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For the battery to kak like that after only one year, there may well be a parasitic power drain when the engine is not running. That should be investigated by a dealer (or you) before too long.
 
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