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Service bulletins for the 2018 Audi A6

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

700 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Engine control module are shown. Show all

Bulletins, newest first
A2722412058831_42022-04-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This bulletin contains a software update for DTC P0CA700 or U046900.
A1922292058767_82022-04-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This bulletin contains instructions for DTCs P218100, P017B00, P308100, and P01E400.
A0121092053040_32021-09-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. This bulletin contains a software update for DTC P050A00 and/or P050700 stored in the ECM.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.