Battery Registration / Coding Necessary?
Had an original MB Varta battery that was getting weak,
went ahead and replaced it with a new AGM battery (boy does it crank / spin over fast now!)
anyhow, i was under the impression battery coding / BMS reset was required following the main battery replacement,
I bought an ICARSOFT MB V3.0 scan diagnostic tool thinking it would be able to support something as simple as BMS reset
but ive been tooling around with it for a while and can't find any service or diagnostic function that will allow for a BMS reset / battery registration / battery coding
I found a "funciton support list" document on the icarsoft site for the MB v3.0 but doesn't seem to mention BMS system anywhere there either.
Does my icarsoft mb v3.0 not support BMS communication, or could it be possible it doesnt have a BMS and therefore, no need to perform a battery registration at all?
i emailed icarsoft to inquire, but figured i ask MBWORLD too.
my GLK FIN is WDC2049881G036175 (204.988)




Had an original MB Varta battery that was getting weak,
went ahead and replaced it with a new AGM battery (boy does it crank / spin over fast now!)
anyhow, i was under the impression battery coding / BMS reset was required following the main battery replacement,
I bought an ICARSOFT MB V3.0 scan diagnostic tool thinking it would be able to support something as simple as BMS reset
but ive been tooling around with it for a while and can't find any service or diagnostic function that will allow for a BMS reset / battery registration / battery coding
I found a "funciton support list" document on the icarsoft site for the MB v3.0 but doesn't seem to mention BMS system anywhere there either.
Does my icarsoft mb v3.0 not support BMS communication, or could it be possible it doesnt have a BMS and therefore, no need to perform a battery registration at all?
i emailed icarsoft to inquire, but figured i ask MBWORLD too.
my GLK FIN is WDC2049881G036175 (204.988)
this could very well explain why battery coding is not an available option in my scan tool service list.




i went through a lot of battery discussion threads, ill need a few minutes to dredge it up.








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I will admit, though, we can't assume car maker xxxx does the same thing as car maker yyyy, especially regarding electronics. That's important!
Last edited by calder-cay; Jan 28, 2025 at 03:30 AM.
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As you know, some cars' electronics and gizmos continue running in the background even with the engine off and the doors locked. This places different demands on the battery than simply starting the engine, and when you add stop-start function into the equation, things get a lot more complicated. Therefore, if your Euro car allows you to register a new battery it's a valuable method of getting the most bang for your buck with that battery.
As previously stated, MB doesn't need it (pretty sure Audi/VW doesn't either) but BMWs, Minis and perhaps others certainly do and it provides you with options on what batteries you can buy when you can't find the exact OE type.
As you know, some cars' electronics and gizmos continue running in the background even with the engine off and the doors locked. This places different demands on the battery than simply starting the engine, and when you add stop-start function into the equation, things get a lot more complicated. Therefore, if your Euro car allows you to register a new battery it's a valuable method of getting the most bang for your buck with that battery.
As previously stated, MB doesn't need it (pretty sure Audi/VW doesn't either) but BMWs, Minis and perhaps others certainly do and it provides you with options on what batteries you can buy when you can't find the exact OE type.
BMW - Inventing Complication.





