Battery Coding/Adaptation on Audi A3 8V or any VW-VAG using the VCDS

[@nigeltaylor58]

Yes and I then got a battery regulator fault after this. On module 61 Battery Regulator it came back Control Module incorrect code. After much searching around and not finding the correct coding I eventually got the code from an 8PA Audi A3 and recoded the 61 Battery Regulator with F30F185A this was accepted and the Battery Regulator works fine. Without this code the battery was receiving a constant charge of 14.4 Volts which depending on state of charge of AGM battery was either insufficient or if fully charged was ‘frying’ the AGM battery. Now with a Digital Volt Meter constantly monitoring the battery I have seen charge rate at 14.8 volts when battery was heavily discharged, reducing to 14.4 volts when fairly discharged, then charge reducing to 13.1 volts when battery is almost fully charged to a fully charged state giving a reading of 12.8 volts for a fully charged new battery with engine running at 2,500 rpm

[@florinconstantinescu926]

German word for AGM technology is "Fleece", "Binary - AGM" is close but not quite right, it describes some new coiled cell AGM battery technology. If you don't have a 3 letter code for the manufacturer, just write "UNK" for unknown. Serial number should be different, any 10 digit word is ok as long is different from the old one, in order for the "car to know" that is a new (or different) battery and relearn his characteristics, you can write in the calendar date instead.

[@monkey555500]

thanx..that is the clearest how too ive seen on the battery coding,im glad i now know the battery make and serial number isnt important as ive got a yuasa battery due to arrive today and wasnt sure what to write

[@edmundfernandes8541]

Thanks.

[@wazel1977]

IMHO in Battery Technology for AGM battery you should use fleece