What changes
Module 09 (central electrics (BCM)): adaptation channel 01 = 10 (s).
Details
Audi A3 8P (2003–2013). Coming home must be enabled in the MFA menu or on the light switch. The channel comes from public 8P adaptation descriptions and has not been verified by writing to a car. Odyx reads the current channel value first and shows the changes: on other module versions the channel number may mean something else — compare the “before” value with what you expect. You need an ELM327 adapter that supports TP2.0. Undo — from the write history.
Other options
This is one option of the “Coming home duration” setting: only one can be active.