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November 3, 2023 Service bulletin

Transmission Control Module (TCM) Software

Audi technical service bulletin Circ34L4_REV1 for 2017-2018 Audi A3 and 2018 Audi S3.

Bulletin number
Circ34L4_REV1
Component
Power train: automatic transmission: control module (TCM/PCM/tecm)
Summary
Transmission Control Module (TCM) Software - Updated repair steps after software update is completed. Added example photos of transmission damage.

Owners of these vehicles have filed 12 complaints in the transmission category.

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