2021 Audi A6 Allroad 12V Battery Replacement

This is a DIY video for replacing the 12V battery in a C8 generation Audi A6 Allroad. My car is a 2021 but this should apply to 2019-2024 models and possibly others.

Links to products used or mentioned:

100A Battery Charger (affiliate link): https://amzn.to/3W2EfTe
VCDS: https://store.ross-tech.com/shop/vchv...
OBDeleven (affiliate link): https://amzn.to/3BXwJSE
Alldata DIY: https://www.alldata.com/diy-us/en (They have a limited version of the service manual, but still very helpful)
Factory service manual: https://www.factory-manuals.com/

Ross-Tech Forum post for MQB security access codes: https://forums.ross-tech.com/index.ph...

Battery coding video from ‪@HumbleMechanic‬:    • How To Replace and ADAPT a VW or Audi...  

Timestamps:
0:00 Intro
1:10 Warnings
3:45 Procedure Overview
4:45 De-energizing the 48V System
5:53 Disassembly
10:54 Disconnecting and Removing the Battery
16:38 Installing the New Battery
21:55 Coding the Battery and Re-energizing the 48V System
23:39 Re-assembling the Interior