E-Class (W211) 2003-2009

W211 and R230 systems

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Old Jun 23, 2024 | 11:55 AM
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From: Benton, Louisiana, USA
SL 500 2004, Ford F-150-2014
W211 and R230 systems

Gentlemen, I got a couple of questions and appreciate someone enlightening me.
1.-Is the W211 single battery or dual battery?
2.-What is the function of the Battery Control Module?

Thanks!
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Old Jun 23, 2024 | 12:12 PM
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'99 and '05 E55 AMG
Model years 2003 through 2006, one 900 CCA main battery plus a 200 CCA auxiliary battery intended to provide emergency backup power in event of alternator or main battery failure.





Last edited by bbirdwell; Jun 23, 2024 at 05:23 PM.
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Old Jun 23, 2024 | 01:26 PM
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2006 E280
Dual battery along with BCM was dropped with the facelift. My 06/2006 does not have them.
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Old Jun 26, 2024 | 04:30 AM
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2005 CLS55 AMG W219 C219
A little bit more information about both questions: https://mbworld.org/forums/attachmen...ery_system.pdf
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Old Jun 26, 2024 | 01:06 PM
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From: Benton, Louisiana, USA
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Thank you gentlemen for sharing the info. I own a SL-500 with a burned BCM and as you may not know, these BCM's are being sold Used with a price of Gold.
The issue with used BCM's is that they are like a ticking bomb..! May burn at anytime ..>! So, I am considering using a W211 or W221 system and would need all the info I could use to determine feasibility. I wonder if any of you have a schematic like the one shown in the attached for the N82-1 component!

Kindly,

El Macko.
Attached Files
File Type: pdf
R230 N82-1 cct diagram.pdf (1.31 MB, 138 views)
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