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Key Problem

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Old Sep 28, 2014 | 10:08 AM
  #1  
SofFMike's Avatar
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2015 C220
Key Problem

Twice now the key won't unlock the doors to my C220. I've switched keys and no problem. Both times it has happened outside of my house, so not sure if there is something making this happen.
Obviously, I will be taking this to the dealer but I was wondering if anyone else has had this happen and if there was an easy fix I can do myself.
Thanks for your input.
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Old Sep 28, 2014 | 11:12 AM
  #2  
StanNH's Avatar
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From: Whitefield, NH
2015 C300 Sport: Palladium, Premium, Multimedia, Leather, BLIS
Could be something as simple as a weak battery.
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Old Sep 28, 2014 | 12:48 PM
  #3  
SofFMike's Avatar
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2015 C220
It has happened with both keys and the car is only three months old. My E Class had the same system and no problems in the three years I had it.
It just seems odd that it has only happened in front of my house. Not sure if that has something to do with it.
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Old Sep 28, 2014 | 01:05 PM
  #4  
jbbeauso's Avatar
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From: Ajax, Ontario, Canada
2015 C400 4matic W205
Do you have any tint on your windows? Certain metallic tints have been know to disrupt RF signals such as the one required for the key
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Old Sep 28, 2014 | 02:12 PM
  #5  
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2015 C220
No, all factory. White w/red leather and pano roof. Nothing out of the ordinary.
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Old Sep 28, 2014 | 02:49 PM
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Did you try to reset the pairing?
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