E350 CDI COUPE 2011 - Battery change

Rotor100

New Member
Joined
Oct 17, 2020
Messages
4
Location
uk
Car
E350 CDI 2011
I`m going to change the battery on my 2011 E350 CDI Coupe , 3.0 Diesel as it appears to be the original one from new and the car has a few other issues ,

  • Do all of these models have an auxiliary battery ? if so where is it located on the coupe 3.0 diesel ?
  • Do I need to keep a 12v supply going into the car via the two terminals next to the main battery so as not to lose any codes/setting during the swap over old to new ?
TIA
 

OneForTheRoad

MB Enthusiast
Joined
Apr 20, 2015
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2,943
Location
uk.
Car
2017 e350 c207 .. +65 ford kuga 2.0 cdi zetec awd..
In the boot. If possible I'd say yes , the codes i had after swapping mine was 3 pages.
 

OneForTheRoad

MB Enthusiast
Joined
Apr 20, 2015
Messages
2,943
Location
uk.
Car
2017 e350 c207 .. +65 ford kuga 2.0 cdi zetec awd..
Where abouts in the boot? I cant see it , its not in the spare wheel well

You might not have one if its not stop start being a 2011.
 

MrGreedy

Active Member
Joined
Jan 13, 2020
Messages
486
Location
Leicestershire
Car
w212 E350 CDI 125th Anniversary Edition
If it doesn't have start stop, and consequently no ECO button on the centre console, then I believe you can just swap. I have a non start stop E350 saloon, 2011. No ECO button. I've disconnected my battery and worked on the car half a dozen times with no I'll effects. I've not even needed to reset the windows 👍
 

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