Thank you for the comments made in this thread. I had a new battery fitted today to my Octavia 1.2 TSI, this was an AGM to replace the original EFB which was completely dead, so I needed a mobile service to install a new one. I decided on Halford as their batteries have a 5 year guarantee. Before I ordered the battery I went to a Halfords store and asked if the battery would require coding if purchased through them. They said that they could code it, if it needed it. After research on here and Youtube, I made my mind up that it would. For example the battery would need to coded with the option of "fleece".
The mobile fitter arrived today. I asked if the battery would need to be coded in, as the car had battery management, etc. He said that after x number of years of fitting batteries on VW, he has never coded a battery. I again said that I had seen on You Tube that Halford batteries had been coded, he ignored my comments. After the fitment, all he did was that stated above, to cancel the error codes, ie start engine, wheels to the right and wheels to the left. That was his £27 worth done.
Would I now be sensible to go to the local Halfords store and query the fact that the battery was not coded, so I can get it coded and t extends the battery life, and makes sure that nothing malfunctions, as it was not coded.
Thanks in advance.