This TSB provides basic diagnosis steps for discharged batteries, general tips for working with batteries, and system verification steps to ensure that the vehicle is configured correctly.
For additional information on known current draw issues, refer to the following TSBs:
? 2014127: 27 Battery dead or low after returning to the vehicle (2007 A6, A8, Q7)
? 2019143: 27 Battery discharged on some vehicles with Advanced Key (2005 - 2008 A6, Q7)
