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VCDS (aka Vagcom) For all your electronic debug / diag advice queries and mods. |
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Thread Tools | Display Modes |
#11
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Fair enough, was just a thought
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#12
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Glad all is well mate, bet the Aux Heater comes in handy on the cold mornings! |
#13
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Did another scan of the battery regulation module today, not having used the car since Friday. The battery voltage being so low suggests I should replace it, right?
Monday,14,December,2015,10:51:19:32264 VCDS Version: Release 11.11.3 Data version: 20120401 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 10:50:43 11.85 V Battery Voltage (actual) StatCurStg 0 Static-Current Shut-Off Stage -19.6 A Current Value from Battery 0.00 Static-Current Mean Value 10006 Ah Total Energy Balance 10000 Ah Total Energy Throuput 56.0 Duration last Standing Time 0.00 Duration last Driving Cycle 70.0 % Battery State of Charge (SOC)
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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. |
#14
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Little update, I replaced the battery with a Bosch S5 110Ah and 5 year guarantee for peace of mind. All coded in. Easiest job I've done on the D3 yet.
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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. |
#15
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Let it stand for a couple of days then scan battery regulation again and see what SOC is and battery voltage is .
I assume when you scanned ignition was on and maybe other consumers as you can see the -19 .6 amp draw from the battery so batt volts will drop somewhat . If you wanted to check true batt volts , latch boot lock over ,stick volt meter on batt and lock car and let it go to sleep ..... 10 mins or so let's say , then see what volts are , you could do same test after a day or so and see if battery is staying good |
#16
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Will do another scan after a few long drives.
Thanks again 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. |
#17
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Some comments about D3s and the Battery stuff ...
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VAG parts are xxx yyy zzz nn = vehicle subsystem part version 2. The Battery Meter % and its associated SOC values in the ECU that you read out with VCDS is one of the mysteries of life. The ECU calculates it and its value is shown in the MMI display but no-one knows what formula is used to determine it. I think Audi gave up on it, which is why it was removed at one of the MMI updates. After problems, I've seen the number 'stuck' at 10% on my car for three days before it magically returns to 100%, so don't trust it. 3. Best bet for working out the battery SOC is to use a volt meter across the battery. - 100% is 12.6V, 75& is 12.4V, 50% is 12.1V, 25% is 11.9V - all approximate values for 'normal' temperatures - Spring in the UK! Last edited by JulianHicks; 5th February 2016 at 02:24 PM. |
#18
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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. |
#19
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Right you are ....so just coincidence then the end part number being the same .
Regards to the state of charge ,you would have to test it with no load at all I assume because if there was some load on it the state of charge could be 100% but a slight load would pull the volts down somewhat |
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