What changes
Unit 52 (passenger door): long coding, byte 4, bit 2 = 1, byte 4, bit 3 = 1.
Details
Audi A4 B8 (8K). Needs a compatible mirror drive with memory; check that the mirror returns after the manoeuvre. The map is compiled from public descriptions of the B8 coding and has not been confirmed by a write on a car. Odyx reads the unit's coding first and shows the changes. On early B8 cars the unit answers over TP2.0 (KWP2000) — you need an ELM327 adapter that supports TP2.0; on the B8.5 some units answer over UDS. To undo, use the write history.
Other options
This is one option of the “Right mirror dip in reverse” setting: only one can be active.