A8 [D3] & A6 [4F] Battery ECU compatability? ...

Eric · Feb 15, 2017

Links refreshed with 17.2.1, now with UDS (at least Mk7 gateways) support:

Code:

;Wednesday,15,February,2017,17:05:13:18206
;                Address 19: CAN Gateway
;Control Module Part Number: 5Q0 907 530 Q
;  Component and/or Version: GW MQB High   212 2163
;           Software Coding: 0101000820085900EF00002A080F00000001000000000000000000000000
;            Work Shop Code: WSC 00066
;                      VCID: 3FD8499137F9CD1F093-806A
;
;History Data

Record 1/16: No-load voltage underranging
-------------:--*--.-*--*-----***
-------------:--*--.-*--**
-------------:--*--.-*--**
-------------:--*--.-*--*-----***
-------------:--*--.-*--**
-------------:--*--.-*--**
-------------:--*--.-*--*-----***
-------------:--*--.-*--**
-------------:--*--.-*--**

Record 2/16: No-load current overranging 
-------------:--*----*---*---.--*-----------*-*--*-----**
-------------:--*----*---*---.--*-----------*-*--**
-------------:--*----*---*---.--*-----------*-*--**
-------------:--*----*---*---.--*-----------*-*--**
-------------:--*----*---*---.--*-----------*-*--**

Record 3/16: Shut-off stage history
       0000020km*T*0*100*100*+00.00*0-0-0-0-0-0*-*0*00.0*00.0**
       0000017km*T*0*100*100*+00.00*0-0-0-0-0-0*-*0*00.0*00.0**
       0000017km*T*0*100*100*+00.00*0-0-0-0-0-0*-*0*00.0*00.0**
       0000017km*T*0*100*100*+00.00*0-0-0-0-0-0*-*0*00.0*00.0**
       0000013km*T*0*100*100*+00.00*0-0-0-0-0-0*-*0*00.0*00.0**
       0000013km*T*0*100*100*+00.00*0-0-0-0-0-0*-*0*00.0*00.0**
       0000010km*T*0*100*100*+00.00*0-0-0-0-0-0*-*0*00.0*00.0**
       0000010km*T*0*100*100*+00.00*0-0-0-0-0-0*-*0*00.0*00.0**
       0000008km*T*0*100*100*+00.00*0-0-0-0-0-0*-*0*00.0*00.0**
       0000007km*T*0*100*100*+00.00*0-0-1-1-0-0*-*0*00.0*00.0**

Record 4/16: Battery change history
       0000000km*01*051*JCB*1111111111*10000*00000*0066*0071*0167**
-------------:--*--*---*---*----------*-----*-----*----*----*----**
-------------:--*--*---*---*----------*-----*-----*----*----*----**

Record 5/16: Energy-critical vehicle states
-------------:--*---.--*---.--*---.--*--.--*---*--*---.-*-----*-----*------*-----------*-*--.-*--.-*---.-*--*--*--**
-------------:--*---.--*---.--*---.--*--.--*---*--*---.-*-----*-----*------*-----------*-*--.-*--.-*---.-*--*--*--**
-------------:--*---.--*---.--*---.--*--.--*---*--*---.-*-----*-----*------*-----------*-*--.-*--.-*---.-*--*--*--**

Record 6/16: Energy balances (last 10 trips)
2017-02-15-13:45*100*+32*+000.0*00.10**
2017-02-15-13:02*100*+31*+000.0*00.10**
2017-02-15-08:13*100*+83*+000.0*00.10**
2017-02-14-19:38*100*+60*+000.0*00.10**
2017-02-14-17:47*100*+17*+000.0*00.20**
2017-02-14-13:39*100*+17*+000.0*00.10**
2017-02-14-13:00*100*+16*+000.0*00.10**
2017-02-14-07:50*100*+20*+000.0*00.10**
2017-02-13-17:46*100*+80*+000.0*00.20**
2017-02-13-13:42*100*+79*+000.0*00.10**

Record 7/16: Energy balances (last 10 standing times)
-------------:--*---*----.-*---.-*--.-*--.-**
-------------:--*---*----.-*---.-*--.-*--.-**
-------------:--*---*----.-*---.-*--.-*--.-**
-------------:--*---*----.-*---.-*--.-*--.-**
-------------:--*---*----.-*---.-*--.-*--.-**
-------------:--*---*----.-*---.-*--.-*--.-**
-------------:--*---*----.-*---.-*--.-*--.-**
-------------:--*---*----.-*---.-*--.-*--.-**
-------------:--*---*----.-*---.-*--.-*--.-**
-------------:--*---*----.-*---.-*--.-*--.-**

Record 8/16
2015-08-26-18:05*4*00*00*00*03*2015-08-26-02:45*01**
2014-08-18-14:19*4*00*00*00*02*2014-08-18-18:18*01**
2014-08-18-18:17*4*00*00*00*01*2011-03-11-18:08*01**

Record 9/16
2014-09-06-18:06*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2017-02-07-07:46*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2017-01-10-07:41*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2016-12-13-07:29*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2016-11-15-05:51*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2016-10-17-20:04*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2016-09-19-17:43*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2016-08-22-13:32*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2016-07-25-13:13*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2016-07-16-00:00*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2016-06-30-13:01*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2016-06-02-08:01*100*100*100*100*00000*15.00*+41*01*12.70*00000*00000**

Record 10/16: Dynamic energy management
-------------:--*-*---.-*-----*-*---.-*-----*--.--*-------**
-------------:--*--*--.--*--.--*---.-**

Record 11/16
-------------:--*---*---*---*---*----*---*--.-*--.-*---*---*---*---*--*-----*-----*-----*-----*-----**
-------------:--*---*---*---*---*----*---*--.-*--.-*---*---*---*---*--**
-------------:--*---*---*---*---*----*---*--.-*--.-*---*---*---*---*--**
-------------:--*---*---*---*---*----*---*--.-*--.-*---*---*---*---*--**
-------------:--*---*---*---*---*----*---*--.-*--.-*---*---*---*---*--**

Record 12/16: Start-Stop
-------------:--*---------------**
-------------:--*---------------**
-------------:--*---------------**
-------------:--*---------------**
-------------:--*---------------**
-----*-----*-----*-----*-----*-----*-----*-----**
-------------:--*---------------**
-------------:--*---------------**
-------------:--*---------------**
-------------:--*---------------**
-------------:--*---------------**
-----*-----*-----*-----*-----*-----*-----*-----**
-------------:--*-*---*---*---*--*---*---.--*--.-*-**
-------------:--*-*---*---*---*--*---*---.--*--.-*-**
-------------:--*-*---*---*---*--*---*---.--*--.-*-**
-------------:--*-*---*---*---*--*---*---.--*--.-*-**
-------------:--*-*---*---*---*--*---*---.--*--.-*-**
-----*-----*-----**

Record 13/16: Sporadic alternator faults
-------------:--*---------*---.-*-----**
-------------:--*---------*---.-**
-------------:--*---------*---.-**

Record 16/16: Vehicle energy balance
       0029729km**
00000*00000*00000*00000*00000**
04181*00192*00030*00053**
31849*00032*00001*00005**
00655*01717*01852*00251**
02546*01803*00126**
00000*00000*00000*00000**
00000*00000*00000*00000**
04238*00008*00003**
00000*00000*00000**
00015*00000*00000**
00000*00000*00000*00000*00000*00000*00000*00000*00000*00000**

Not a lot there but better than nothing. I don't know of a source of info to interpret those, but hopefully we (with Niels' help!) can piece it together from the TP2.0 Audis.
I hope I can get the A6 4G back soon and eventually the Touareg to see if it needs any tweaking.

On the A8 front, we've had one report from a HUC so far (thank you Scott) that wasn't entirely promising as far as the ability of the HUC to work reliably with that generation of BEM:

; Address 61: Battery Regul.
;Control Module Part Number: 4E0 910 181 C
; Component and/or Version: J0644 BEM H12 0550

But at least one attempt succeeded in getting all records 1 through 18.

Uwe · Feb 15, 2017

4G should be back on Friday afternoon, I think.

-Uwe-

delboy · Feb 15, 2017

Eric said:

Links refreshed with 17.2.1, now with UDS (at least Mk7 gateways) support:

Code:

;Wednesday,15,February,2017,17:05:13:18206
;                Address 19: CAN Gateway
;Control Module Part Number: 5Q0 907 530 Q
;  Component and/or Version: GW MQB High   212 2163
;           Software Coding: 0101000820085900EF00002A080F00000001000000000000000000000000
;            Work Shop Code: WSC 00066
;                      VCID: 3FD8499137F9CD1F093-806A
;
;History Data

Record 1/16: No-load voltage underranging
-------------:--*--.-*--*-----***
-------------:--*--.-*--**
-------------:--*--.-*--**
-------------:--*--.-*--*-----***
-------------:--*--.-*--**
-------------:--*--.-*--**
-------------:--*--.-*--*-----***
-------------:--*--.-*--**
-------------:--*--.-*--**

Record 2/16: No-load current overranging 
-------------:--*----*---*---.--*-----------*-*--*-----**
-------------:--*----*---*---.--*-----------*-*--**
-------------:--*----*---*---.--*-----------*-*--**
-------------:--*----*---*---.--*-----------*-*--**
-------------:--*----*---*---.--*-----------*-*--**

Record 3/16: Shut-off stage history
       0000020km*T*0*100*100*+00.00*0-0-0-0-0-0*-*0*00.0*00.0**
       0000017km*T*0*100*100*+00.00*0-0-0-0-0-0*-*0*00.0*00.0**
       0000017km*T*0*100*100*+00.00*0-0-0-0-0-0*-*0*00.0*00.0**
       0000017km*T*0*100*100*+00.00*0-0-0-0-0-0*-*0*00.0*00.0**
       0000013km*T*0*100*100*+00.00*0-0-0-0-0-0*-*0*00.0*00.0**
       0000013km*T*0*100*100*+00.00*0-0-0-0-0-0*-*0*00.0*00.0**
       0000010km*T*0*100*100*+00.00*0-0-0-0-0-0*-*0*00.0*00.0**
       0000010km*T*0*100*100*+00.00*0-0-0-0-0-0*-*0*00.0*00.0**
       0000008km*T*0*100*100*+00.00*0-0-0-0-0-0*-*0*00.0*00.0**
       0000007km*T*0*100*100*+00.00*0-0-1-1-0-0*-*0*00.0*00.0**

Record 4/16: Battery change history
       0000000km*01*051*JCB*1111111111*10000*00000*0066*0071*0167**
-------------:--*--*---*---*----------*-----*-----*----*----*----**
-------------:--*--*---*---*----------*-----*-----*----*----*----**

Record 5/16: Energy-critical vehicle states
-------------:--*---.--*---.--*---.--*--.--*---*--*---.-*-----*-----*------*-----------*-*--.-*--.-*---.-*--*--*--**
-------------:--*---.--*---.--*---.--*--.--*---*--*---.-*-----*-----*------*-----------*-*--.-*--.-*---.-*--*--*--**
-------------:--*---.--*---.--*---.--*--.--*---*--*---.-*-----*-----*------*-----------*-*--.-*--.-*---.-*--*--*--**

Record 6/16: Energy balances (last 10 trips)
2017-02-15-13:45*100*+32*+000.0*00.10**
2017-02-15-13:02*100*+31*+000.0*00.10**
2017-02-15-08:13*100*+83*+000.0*00.10**
2017-02-14-19:38*100*+60*+000.0*00.10**
2017-02-14-17:47*100*+17*+000.0*00.20**
2017-02-14-13:39*100*+17*+000.0*00.10**
2017-02-14-13:00*100*+16*+000.0*00.10**
2017-02-14-07:50*100*+20*+000.0*00.10**
2017-02-13-17:46*100*+80*+000.0*00.20**
2017-02-13-13:42*100*+79*+000.0*00.10**

Record 7/16: Energy balances (last 10 standing times)
-------------:--*---*----.-*---.-*--.-*--.-**
-------------:--*---*----.-*---.-*--.-*--.-**
-------------:--*---*----.-*---.-*--.-*--.-**
-------------:--*---*----.-*---.-*--.-*--.-**
-------------:--*---*----.-*---.-*--.-*--.-**
-------------:--*---*----.-*---.-*--.-*--.-**
-------------:--*---*----.-*---.-*--.-*--.-**
-------------:--*---*----.-*---.-*--.-*--.-**
-------------:--*---*----.-*---.-*--.-*--.-**
-------------:--*---*----.-*---.-*--.-*--.-**

Record 8/16
2015-08-26-18:05*4*00*00*00*03*2015-08-26-02:45*01**
2014-08-18-14:19*4*00*00*00*02*2014-08-18-18:18*01**
2014-08-18-18:17*4*00*00*00*01*2011-03-11-18:08*01**

Record 9/16
2014-09-06-18:06*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2017-02-07-07:46*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2017-01-10-07:41*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2016-12-13-07:29*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2016-11-15-05:51*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2016-10-17-20:04*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2016-09-19-17:43*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2016-08-22-13:32*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2016-07-25-13:13*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2016-07-16-00:00*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2016-06-30-13:01*100*100*100*100*00000*15.00*+00*01*12.70*00000*00000**
2016-06-02-08:01*100*100*100*100*00000*15.00*+41*01*12.70*00000*00000**

Record 10/16: Dynamic energy management
-------------:--*-*---.-*-----*-*---.-*-----*--.--*-------**
-------------:--*--*--.--*--.--*---.-**

Record 11/16
-------------:--*---*---*---*---*----*---*--.-*--.-*---*---*---*---*--*-----*-----*-----*-----*-----**
-------------:--*---*---*---*---*----*---*--.-*--.-*---*---*---*---*--**
-------------:--*---*---*---*---*----*---*--.-*--.-*---*---*---*---*--**
-------------:--*---*---*---*---*----*---*--.-*--.-*---*---*---*---*--**
-------------:--*---*---*---*---*----*---*--.-*--.-*---*---*---*---*--**

Record 12/16: Start-Stop
-------------:--*---------------**
-------------:--*---------------**
-------------:--*---------------**
-------------:--*---------------**
-------------:--*---------------**
-----*-----*-----*-----*-----*-----*-----*-----**
-------------:--*---------------**
-------------:--*---------------**
-------------:--*---------------**
-------------:--*---------------**
-------------:--*---------------**
-----*-----*-----*-----*-----*-----*-----*-----**
-------------:--*-*---*---*---*--*---*---.--*--.-*-**
-------------:--*-*---*---*---*--*---*---.--*--.-*-**
-------------:--*-*---*---*---*--*---*---.--*--.-*-**
-------------:--*-*---*---*---*--*---*---.--*--.-*-**
-------------:--*-*---*---*---*--*---*---.--*--.-*-**
-----*-----*-----**

Record 13/16: Sporadic alternator faults
-------------:--*---------*---.-*-----**
-------------:--*---------*---.-**
-------------:--*---------*---.-**

Record 16/16: Vehicle energy balance
       0029729km**
00000*00000*00000*00000*00000**
04181*00192*00030*00053**
31849*00032*00001*00005**
00655*01717*01852*00251**
02546*01803*00126**
00000*00000*00000*00000**
00000*00000*00000*00000**
04238*00008*00003**
00000*00000*00000**
00015*00000*00000**
00000*00000*00000*00000*00000*00000*00000*00000*00000*00000**

Not a lot there but better than nothing. I don't know of a source of info to interpret those, but hopefully we (with Niels' help!) can piece it together from the TP2.0 Audis.
I hope I can get the A6 4G back soon and eventually the Touareg to see if it needs any tweaking.

On the A8 front, we've had one report from a HUC so far (thank you Scott) that wasn't entirely promising as far as the ability of the HUC to work reliably with that generation of BEM:

But at least one attempt succeeded in getting all records 1 through 18.

I get back from snowy St Johns tomorrow so will try it and report back, I too have A8 and use HUC

Eric · Feb 16, 2017

17.2.2 is out. Found a longstanding limitation in the HUC code that would truncate very long history messages in CAN TP2.0 (not UDS). As far as I can tell only the models having one or several particularly lengthy records (like 20 trips energy balance or 16 shut-off stage history in an 8K) should be affected but you wouldn't know to begin with since it was being truncated with previous versions

Also fixed newline issues in the VCDS session log (not the autosave file).
Uwe has confirmed that UDS support introduced in 17.2.1 also works on later Touareg gateways.
http://download.ross-tech.com/VCDS/download/tmp/VCDS-x86.zip
http://download.ross-tech.com/VCDS/download/tmp/VCDS-x64.zip

JulianHicks · Feb 16, 2017

Unfortunate timing ...

Zenerdiode said:
:Bursts with excitement:

So did I when I saw this update to what was my original thread.

Wow! I take 2 days off [1 to got out 'playing trains' with my friend's kids [see rhdr.org.uk] / 1 to travel 35 miles to see my old work colleague for lunch and a beer] and the VCDS BEM Log world changes. Frustratingly I came back today and before I saw this, put the 'old' SW 0240 BEM I purchased into the car. The one I had all the problems with is sitting on the table. :banghead:

Will go out shortly and run the new beta code on my A8 with the replacement 'old' ECU ...

Julian

vagtuning · Feb 16, 2017

@Eric : You´ve got Mail

17.2.0.2 crashed on A4 8W and A6 4G today while reading Hist Data - Logs and debugs should be there....

Eric · Feb 16, 2017

Hmm, those were with 17.2.0.2 which didn't support UDS very well to put it midly

vagtuning · Feb 16, 2017

just read it, and downloaded the new Version - next day - next Car - next Try

THX

JulianHicks · Feb 16, 2017

JulianHicks said:
Will go out shortly and run the new beta code on my A8 with the replacement 'old' ECU ...
Julian

This is SO important, I've postponed the evening meal and gone out to the car instead.

Just run Beta 17.2.2 on my A8 Battery Manager whose Autoscan earlier this afternoon was as follows:

Code:

Address 61: Battery Regul.        Labels: User\4E0-910-181.lbl
   Part No SW: 4E0 910 181 B    HW: 4E0 915 181 
   Component: ENERGIEMANAGER  H02 0240  
   Revision: 00000000    Serial number: 00000000002872
   Shop #: WSC 00189 210 83995
   VCID: 1F4D841DCE6C1DB9F0-804A

   Subsystem 1 - Part No: 000 915 105 DL
   Component: von VA0  310314E07G       
   Coding: 303030393135313035444C56413033313033313445303747
   Shop #: WSC 00414 210 87557

No fault code found.

Sadly, all I got in the screen 'box' after about 5 seconds was the following 4 lines:

012000000000000000000000000000000000000000011200000000000000000000000000000000000021200000000 -> offscreen
012000000000000000000000000000000000000000011200000000000000000000000000000000000021200000000 -> offscreen
012000000000000000000000000000000000000000011200000000000000000000000000000000000021200000000 -> offscreen
ERROR: Function Not Available

Note that number of zeros may be incorrcet and that the space was inserted by the forum code and not me!
Julian

Eric · Feb 16, 2017

Let's see some debug files.

JulianHicks · Feb 16, 2017

Eric said:
Let's see some debug files.

Sorry Eric; didn't get any files saved in any of the usual folders and didn't quite understand the need to use DEBUG. :confused:

However, having reread your earlier text I'm going to retry with debug set now that I think I understand it!

Julian

JulianHicks · Feb 16, 2017

Rerun with Debug=1024

Hi Eric; just rerun with Debug set to 1024.

Still didn't get a file like "Hist-19-8R0-907-468-P-20170214-1708.txt" in the logs folder but I did get a DLM file for ECU 61 in the Debug folder.

Debug file being sent separately to support.

Regards - Julian

PS BTW I'm using a HUC.

Eric · Feb 16, 2017

We're actually very upset when setting debug to 1024 results in a different behavior

(it's very very rare thankfully)
So I'm able to see that what the car is sending is more or less identical to what VCDS displays. Here's the first field:
0012000000000000000000000000000000000000
That's the "good" news. The bad news is there's a whole lot of zeroes in all those messages. Why? I think either
-VCDS is not calling the right function for your module
-The module swapping has confused your BEM
I'm going to do some research on the first possibility, in the meantime feel free to try your newer module. So far we've received positive feedback on three separate instances (!) of the following module:

Code:

Control Module Part Number: 4E0 910 181 C
Component and/or Version: J0644 BEM       H12 0550

JulianHicks · Feb 16, 2017

Eric said:
-The module swapping has confused your BEM
I'm going to do some research on the first possibility, in the meantime feel free to try your newer module. So far we've received positive feedback on three separate instances (!) of the following module:

Code:

Control Module Part Number: 4E0 910 181 C Component and/or Version: J0644 BEM H12 0550

Hi Eric; thanks for the update.

The BEM can't be 'confused' as I actually replaced the complete BEM ECU; a non-trivial 90 mins worth! So I've got a new 'old' BEM out of another car, which after installing, I cleared the old [2002!] DTCs and reset the battery code to match my battery. Since I believe the BEM keeps logs fro the last three batteries, it presumably has two of the logs from the previous A8 and a new one for the code I've just entered today. [Aha - Maybe I haven't got any history yet?] But I don't really want to change back to the original BEM as I need the potential extra info. the ECU may display to diagnose a current battery flat issue I have.

However, notwithstanding that, the BEM part / level you quote above is the 'final' BEM ECUs for the A8 D3s which was manufactured between about May 2005 and Mar 2009 - these are all firmware level 0550. My newly installed 'old one' was manufactured Mar 2003 - firmware 0240 - and the one in my car since it was built in Nov 2004 was manufactured in Oct 2004 - firmware level originally 0390 but updated to 0510 by dealer. See Autoscan edits below

Code:

Address 61: Battery Regul.
   Part No SW: 4E0 910 181 C    HW: 4E0 915 181 C
   Component: J0644 BEM       H11 0510  
   Revision: 00000000    Serial number: 00000000014066
   Shop #: WSC 00028 210 01865 

   Subsystem 1 - Part No: 000 915 105 DL
   Component: von VA0  310314E04G       
   Coding: 303030393135313035444C56413033313033313445303447
   Shop #: WSC 00011 888 06946

Address 61: Battery Regul.        Labels: User\4E0-910-181.lbl
   Part No SW: 4E0 910 181 B    HW: 4E0 915 181 
   Component: ENERGIEMANAGER  H02 0240  
   Revision: 00000000    Serial number: 00000000002872
   Shop #: WSC 00189 210 83995

   Subsystem 1 - Part No: 000 915 105 DL 
   Component: von VA0  310314E07G        
   Coding: 303030393135313035444C56413033313033313445303747
   Shop #: WSC 00414 210 87557

And FYI, since I keep 'interesting' A8 D3 Autoscans for reference, I've seen the following firmware levels on the relatively few A8 logs that I've ever seen - 0230, 0240, 0390, 0510, 0550. So you might deduce that there are at least five potential variations of logs on the A8. [I've looked at some A6 logs too and there are even more BEM fw variations]. :banghead:

Julian

Eric · Feb 16, 2017

OK after doing some digging (thanks Peter and Dana) it turns out 4E0 910 181 B seems to use "different" history data, whereas 4E0 910 181 C is referenced as compatible with the C6/4F history data (which explains why they're working fine with our current code!

). Other info not directly relevant to your case, the minimum firmware revision to have history data is 230 (you have 240 so you should be good). Now to see if I can find what request to send and how to interpret it, without having the module on hand :banghead:

JulianHicks · Feb 16, 2017

Eric said:
OK after doing some digging (thanks Peter and Dana) it turns out 4E0 910 181 B seems to use "different" history data, whereas 4E0 910 181 C is referenced as compatible with the C6/4F history data (which explains why they're working fine with our current code! ). Other info not directly relevant to your case, the minimum firmware revision to have history data is 230 (you have 240 so you should be good). Now to see if I can find what request to send and how to interpret it, without having the module on hand

Good progress guys

Not entirely surprising findings about the different history data formats; the 4E0 910 181C BEM package is a different physical design to the 4E0 910 181/181A/181B models [the battery cable goes to the middle of, rather than underneath, the case] and presumably came out of design changes thought necessary for the C6/4F chassis requirements.

Julian

BTW, this table reflects what I've found by looking at lots of ebay listings in the UK and US. You guys will probably understand all the HW/SW/nn/nnnn changes far more than me, but the A8 [and A6] BEMs have had a chequered history, the changes of which haven't really been explained by any publicly available documents.

Code:

== J644 - A8 Battery Energy Management [BEM] control unit ==
       Bosch Label on ECU : 0 199 000 xxx [see below]
==============================================================================
1st variation of ECU - VCDS Component "ENERGIEMANAGER"

xxx:HW            SW           Print on ECU  Dates [mmyy]
006:4E0 915 181   4E0 910 181  02 007        0902
006:4E0 915 181   4E0 910 181  02 010        0103
006:4E0 915 181   4E0 910 181  02 016        0103-0703
006:4E0 915 181   4E0 910 181A 02 023        0903-1103
006:4E0 915 181   4E0 910 181B 02 024        1103-0404
    
2nd variation of ECU - VCDS Component "J0644 BEM""

xxx:HW            SW           Print on ECU  Dates [mmyy]
015:4E0 915 181C  4E0 910 181C 11 034        0404-1004    
015:4E0 915 181C  4E0 910 181C 11 039        1004-1204   
015:4E0 915 181C  4E0 910 181C 12 048        0505
015:4E0 915 181C  4E0 910 181C 12 055        0505-0309

Note: VCDS sometimes recognises the 'print on ECU' info. as 'Hxx yyy0'
==============================================================================

1st variation of ECU - Battery Lead connects below ECU 'box' 
2nd variation of ECU - Battery Lead connects in middle of ECU 'box'
181C variants 11 034 to 12 048 are subject to the 'firmware update needed' TSB 2016847,
which updates the fw to 0510!

Eric · Feb 16, 2017

FWIW I ordered a "4E0 910 181B 02 024" (presumably same FW 240 as you) on ebay, that was cheap enough that we won't be upset if we can't get it to talk ($35). Should be here middle of next week.

JulianHicks · Feb 17, 2017

Eric said:
FWIW I ordered a "4E0 910 181B 02 024" (presumably same FW 240 as you) ...

Thanks for the update Eric: These BEM versions are a real puzzle. Let me quote from the BEM update TSB dated Jan 26. 2009:

"4. BEM SW up to version 240 cannot be updated and does not need to be updated, as both the hardware and the software work correctly. ...". Which a) implies more than one SW version before 0240 - as the TSB says "up to 0240" and b) the SW is unchangeable in the ECU - "cannot be updated".

But my installed BEM definitely has "4E0 915 181 / SW:4E0 910 181 / 02 016 / 04.03.03" on the label, implying 'H02 FW 0160', yet my VCDS scan of it is clearly different than that:

Address 61: Battery Regul. Labels: User\4E0-910-181.lbl
Part No SW: 4E0 910 181 B HW: 4E0 915 181
Component: ENERGIEMANAGER H02 0240
Revision: 00000000 Serial number: 00000000002872
Shop #: WSC 00189 210 83995
VCID: 1F4D841DCE6C1DB9F0-804A

Julian

The only way I can explain it is if someone has replaced the 'lid' of the ECU from an earlier one. :confused:

mattylondon · Feb 17, 2017

Julian, check Advance ID... I think it has a flash status - this may tell you if the firmware has been updated? I could be wrong as I'm sitting at work away from my VCDS...

Also, maybe Audi consider ENERGIEMANAGER and BEM as different components/technology doing an identical job?

JulianHicks · Feb 17, 2017

mattylondon said:
Julian, check Advance ID... I think it has a flash status - this may tell you if the firmware has been updated? I could be wrong as I'm sitting at work away from my VCDS...

Matt: Great minds think alike :cool:

I'd already scanned that and this is what it looked like:

Code:

REPLACEMENT     Address 61: Battery Regul.
Control Module Part Number: 4E0 910 181 B
  Component and/or Version: ENERGIEMANAGER  H02 0240
           Software Coding: 
            Work Shop Code: WSC 00189
                      VCID: 1F4D841DCE6C1DB9F0-804A
           Additional Info: 000915105DL von VA0  310314E07G        
           Additional Info: Geraet 83995

Advanced Identification
     Serial number: 00000000002872
     Identification: 000-001
     Revision: 00000000
     Date: 04.03.03
     Test stand number: 0000
     Manufacturer number: 0000
Flash Status
     Programming Attempts: 1
     Successful Attempts: 1
     Programming Status: 00000000
     Required Conditions: 00000001
     Flash Tool Code: 84219 210 00189
Misc.
     Hardware number: 4E0 915 181 
     Lot Number: 000
     Type Lock: 00
VCDS Info:
       VCID: 1F4D841DCE6C1DB9F0-804A
       Labels: USER\4E0-910-181.LBL

Don't know if the count of '1' is the original 'flash' at manufacture or if it reflects another flash at a later stage. Will be interesting to see what yours says ...

I think Audi just renamed the ENERGIEMANAGER to the BEM when they redesigned it.

Julian

A8 [D3] & A6 [4F] Battery ECU compatability? ...

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