C-Class (W204) 2008 - 2014: C180K, C200K, C230, C280, C300, C350, C200CDI, C220CDI, C320CDI

Battery replacement

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Old Oct 13, 2019 | 09:15 AM
  #1  
twiemann's Avatar
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C350
Battery replacement

Do I need to back up the computer with 12volts to change the battery and if so, I need information on which battery saver cable that can hook into the computer to purchase.
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Old Oct 13, 2019 | 08:05 PM
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W204 C300 4-Matic
You should be fine, you may just lose radio presets and have to re-sync your windows.
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Old Oct 14, 2019 | 02:30 PM
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From: SA
2008 C350-Sport-AMG-Active Agility Pack(Not reliable) +Izuzu KB6 3L(It seems Reliable)+Mazda
In my case they just disconnect battery, replace it, reconnect, alarm went off, reset all ok.
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Old Oct 15, 2019 | 09:40 AM
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2009 MB C300 Sport 4matic
My 2009 C300 4Matic....replaced the battery the "old" way w/o battery tender in place. Lost nothing.
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Old Oct 17, 2019 | 12:27 PM
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2007 C 300
Originally Posted by Moto_Guzzi
In my case they just disconnect battery, replace it, reconnect, alarm went off, reset all ok.
I’ve done the same thing and nothing bad has happened. You’ll be fine with swapping your battery
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Old Oct 20, 2019 | 04:32 PM
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Car
There could be a back up battery in the trunk. Needless to say I’ve had to reset my VIM adapter a few times when it glitches by disconnecting the negative terminal. Never lost anything.
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