What changes
Unit 09: 0A6A byte 0 bit 0 = 1 (the doors lock once a speed threshold is reached), 0A65 byte 1 bit 4 = 1 (an MMI menu item to switch the function on and off).
Details
Two settings of the newer MQB body control module: auto-lock at speed and the MMI menu item. The switch appears in the MMI central-locking settings; if it is not there right away, switch the ignition off and on. On the older module the same options are 0D08 byte 0 bit 2 and byte 3 bit 0, so a3c refuses there before writing. Unit 09 on MQB Evo is SFD-protected — a token for unit 09 is needed. Roll back by writing both object backups from history.