Identification and evidence
Audi service information identifies M5.9.2 in a scoped 2.8-litre V6 AHA/ATQ diagnostic context. Match the actual ECU and service information before applying the example.
Identification and scope
Retain the complete ECU designation, Bosch and vehicle-manufacturer part numbers, engine, vehicle year and market, hardware and software identity. Similar names do not establish shared pin assignments, calibration files or programming procedures. Examples above are source-scoped and are not a complete fitment list.
Source accessed 10 November 2026.