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D3 - Interior Electrics Airbags, Sensors, climate modules, instrument clusters, switches etc |
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Thread Tools | Display Modes |
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Battery charge
Hi all.
I fitted a new battery, Bosch S5 before Christmas. Brother in law suggested it wasn't good as it was 12.7 volts. I said it was equivalent to 100% SoC, having googled it. I then had a low battery warning, he tested it and it was 12.2. So I exchanged the battery at Eurocarparts on Monday. Today, having driven 70+ miles I had VCDS on it to add the Webasto menu to MMI. So I had a look at the battery regulation module. See pic. Is 12.4 low? On the battery there is a Bosch sticker that says 12.4. Should it be higher (12.7-13.2v) or am I missing something? All the best. John.
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2010 A8 SE Executive 4.2 FSI D4 2007 Mini Cooper S R56 2008 D3, gone, but not forgotten after 9 years and 90k. |
#2
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Hiya
Looks comparable to data from our new 110Ah battery in our S5 changed about the same time Is there a battery management plug on the -ve terminal that needs disconnecting/reconnecting so it learns the new battery, and was new battery coded when fitted? A
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===SOLD===2002 Audi S8 D2 Final Edition (yes, really) in Avus Silver with purple extended leather===SOLD=== 2011 S5 Sportback in Phantom Black with black Super Sports leather, 9x20s, tech pack high, adaptive xenon plus, intelligent key, memory seats pack, sunroof, B&O, Audi Drive Select & quattro Sports Diff, DAB, parking system plus 2015 VW Golf GTI Performance Pack in Carbon Grey with black Vienna leather, tech pack (Discovery Pro nav & Dynaudio), DCC, factory towbar and retrofit RVC |
#3
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Cheers Adrian.
I coded the last one. Haven't coded this, but it's a like for like... Should I code it again?
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2010 A8 SE Executive 4.2 FSI D4 2007 Mini Cooper S R56 2008 D3, gone, but not forgotten after 9 years and 90k. |
#4
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The serial number needs changing to convince the battery management system that the battery is new.
Instructions attached, in case any steps have been missed, but doesn't appear that the battery management unit needs anything unplugging
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===SOLD===2002 Audi S8 D2 Final Edition (yes, really) in Avus Silver with purple extended leather===SOLD=== 2011 S5 Sportback in Phantom Black with black Super Sports leather, 9x20s, tech pack high, adaptive xenon plus, intelligent key, memory seats pack, sunroof, B&O, Audi Drive Select & quattro Sports Diff, DAB, parking system plus 2015 VW Golf GTI Performance Pack in Carbon Grey with black Vienna leather, tech pack (Discovery Pro nav & Dynaudio), DCC, factory towbar and retrofit RVC |
#5
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Many thanks Adrian. I'll get that done tomorrow
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2010 A8 SE Executive 4.2 FSI D4 2007 Mini Cooper S R56 2008 D3, gone, but not forgotten after 9 years and 90k. |
#6
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Is there any reason you're using a VCDS version so old as 11.11.3 when the latest release is 15.7.3 ?
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Lee 2017 Nissan Leaf Tekna |
#7
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it needs coding so the ecu can reset all the learnt values of the old one. As the battery ages, so its charging time and required curve change, if you put a new one in then this requires the default set of rules. I've recoded the same battery on mine several times to reset the learned values which has resulted in the battery charging better than before.
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Manny 2004 A4 1.8T Sport Cabriolet, 89K Miles Past 2004 D3 A8 3.7 Quattro, Xenon, Bose, Blinds, Solar Sunroof, TV, ACC, phone and almost every option. 168K miles rising slowly with retrofit AMI and DVB-T in place of Analogue 2003 Volvo S60 D5 SE Manual, 197K miles. 2001 D2 A8 3.7 QS, Bi-Xenon, Bose, Blinds, Electric Everything, retrofitted RNS-D, 191K Miles |
#8
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No. No reason Officer.
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2010 A8 SE Executive 4.2 FSI D4 2007 Mini Cooper S R56 2008 D3, gone, but not forgotten after 9 years and 90k. |
#9
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Sorry John... Wasn't having a dig.. I was just wondering if the older versions may have had functionality that had been written out of newer versions, that's all.
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Lee 2017 Nissan Leaf Tekna |
#10
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I wish it was for that very reason Lee
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2010 A8 SE Executive 4.2 FSI D4 2007 Mini Cooper S R56 2008 D3, gone, but not forgotten after 9 years and 90k. |
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