Audi is releasing a software calibration update to the Approved Emissions Modification (AEM) to improve...
Audi technical service bulletin Circular 23Z8 for 2014-2016 Audi A6, 2014-2016 Audi Q5 and 2014-2016 Audi A8 and others.
- Bulletin number
- Circular 23Z8
- Component
- Engine and engine cooling
- Summary
- Audi is releasing a software calibration update to the Approved Emissions Modification (AEM) to improve on-board diagnostics (OBD) monitoring of vehicle emissions systems and provide other improvements to the software used by the vehicle. Additionally, to reduce soot accumulation affecting the oxygen sensor, it is necessary to replace and relocate the sensor, which requires replacement of the diesel oxidation catalyst (DOC) and diesel particulate filter (DPF).
Owners of these vehicles have filed 191 complaints in the engine category.
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