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February 22, 2022 Service bulletin

Update the emergency call module control unit and communication unit software.

Audi technical service bulletin Circular 90T2 for 2020 Audi A4, 2020 Audi S4 and 2020 Audi A5 and others.

Bulletin number
Circular 90T2
Component
Electrical system: software
Summary
Update the emergency call module control unit and communication unit software.

Owners of these vehicles have filed 182 complaints in the electrical category.

Vehicles covered

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