Ah.....The joys of Battery Coding.
My old one was
4E0 915 105 A von VA0 1501170013
I found info here
http://forum.a8parts.co.uk/showthread.php?p=152240
https://www.audisport-iberica.com/fo...r%C3%ADas-vag/
and details on the batteries date and so forth
https://technoluxpro.com/en/stati/ra...vki-bosch.html
The battery was varta H13 - 12v 100aAh 830A which *IS* a slightly different spec. Couldn't find a 100ah battery, so went on the low side with 95ah one, DK - The date was March 21 from the serial 4th digits, 139 , so x Y MM (Also the old code, Jan 05, so that was coded right when last changed!)
I used
4EO915105DK VA0 1103270040
Seems to be accepted, will see if it alters anything???