For the techs and DIYers,

This seems silly, I know, but I did a search and didn't find anything on point.

Time to replace the battery in the RS6. Any particulars I need to be aware of?

I'm told I need to have my radio code handy, because if I don't do it correctly, I'll have to re-enter the code. I think I can handle that, but do I need to know anything else?

I've replaced batteries before, but I just read that the '06 A6 requires VAG-com to enter in the new battery's 10-digit s/n. A s/n on a battery? Um, okay. But, that's a newer model year, so maybe inapplicable.

Before I go pulling the battery connections and causing myself a headache, any advice?

Thanks,

CW