By the way; I personally think 2G MMI updates have got an unnecessarily 'bad name' because of two issues that were misunderstood or misreported.
There seem to be only two issues:
1) V1 Bose amps sometimes went into CP
2) Early BT ECUs didn't support the 'two stage' update described by Marcin. (There's a US technote describing MMI updates for the BT ECU thta specifically tells the Audi Tech to replace low level part numbers) The US used the same hw as euro A8s, I believe).
Julian
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Audi A8 3.0TDi MY2016 in Nautilus Silver.
Audi A8 3.0TDI MY2005 in Midnight Blue. Gone since 2018, after 10 years!
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