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  #1  
Old 10th March 2016, 03:56 PM
JulianHicks JulianHicks is offline
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Default For Info. Only : You may need Battery manager SW update if ...

... you have one of the relatively small number of A8 Battery ECUs installed in late 2004, early 2005. There are a number of indicated problems, published in an Audi TIB, that are apparently fixed with the ECU update.

NOTE: This info. published by the author based on his own experiences.

From what I've seen of all the A8 VCDS Autoscans, there seems to be at least five variations of the ECU 61 Battery Manager ECU Part and Hxx level.

There is no software update of the ECU code required if the VCDS log for ECU is any of the three variations below:

Part No SW: 4E0 910 181 HW: 4E0 915 181
Component: ENERGIEMANAGER H02 xxxx [where xxxx is 0240 or below]

Part No SW: 4E0 910 181 B HW: 4E0 915 181
Component: ENERGIEMANAGER H02 0240

Part No SW: 4E0 910 181 C HW: 4E0 915 181 C
Component: J0644 BEM H12 0550

If it looks like variation 4 though, with H11 level as in my case, there is a software update - but it needs the appropriate CD [4E0 906 961 G] and VAS 505x!

Part No SW: 4E0 910 181 C HW: 4E0 915 181 C
Component: J0644 BEM H11 xxxx [will be above 240 and below 510]

The update takes the software level in the ECU from whatever level is there [mine was 0390] to level 0510, as below.

Part No SW: 4E0 910 181 C HW: 4E0 915 181 C
Component: J0644 BEM H11 0510

Regards - Julian

Last edited by JulianHicks; 14th March 2016 at 01:34 PM. Reason: Minor corrections - new level found!
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Old 10th March 2016, 04:46 PM
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tc4332 tc4332 is offline
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Thanks for the heads up, Julian.

Mine is:-
Part No SW: 4E0 910 181 HW: 4E0 915 181
Component: ENERGIEMANAGER H02 016


So I'm OK.
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  #3  
Old 11th March 2016, 06:39 AM
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ScottD3 ScottD3 is offline
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Mine.
Part Number SW: 4E0 910 181 C HW: 4E0 915 181 C
Component: J0644 BEM H12 0550

Woo-Hoo I'm safe.
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Old 14th March 2016, 01:41 PM
JulianHicks JulianHicks is offline
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Quote:
Originally Posted by tc4332 View Post
Thanks for the heads up, Julian.

Mine is:-
Part No SW: 4E0 910 181 HW: 4E0 915 181
Component: ENERGIEMANAGER H02 016


So I'm OK.
Thanks - haven't seen that version - 016! My note updated to reflect that.

Quote:
Originally Posted by ScottD3 View Post
Mine.
Part Number SW: 4E0 910 181 C HW: 4E0 915 181 C
Component: J0644 BEM H12 0550

Woo-Hoo I'm safe.
Thanks for that. Note that the name has changed in later hardware versions [H11 on, for A8s] and that the code level changed again in the H12 versions.

Regards - Julian

Last edited by JulianHicks; 14th March 2016 at 01:41 PM. Reason: spelling corrections
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  #5  
Old 14th March 2016, 04:40 PM
snapdragon snapdragon is offline
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Luckier than usual...
Code:
Address 61: Battery Regul.        Labels: 4E0-910-181.lbl
   Part No SW: 4E0 910 181 C    HW: 4E0 915 181 C
   Component: J0644 BEM       H12 0550  
   Revision: 00000000    Serial number: 00000000007746
   Shop #: WSC 00976 210 56416
   VCID: 20446925F3D8C34
   Subsystem 1 - Part No: 4E0 915 105 DL
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