2021-2022 Audi Camshaft Position Sensor Emissions Service Action

Audi has released Service Action 24iO, a dealer communication dated February 13, 2023, concerning specific 2021-2022 Audi vehicles. This service action addresses potential issues with the engine's camshaft position sensors that may affect vehicle emissions performance. The primary goal of this action is to ensure all affected vehicles meet emissions standards by replacing potentially faulty components.

Issue Overview

Under certain operating conditions, tolerance issues related to the engine camshaft position sensors have been identified. These issues can lead to elevated tailpipe emissions, meaning the vehicle may not meet environmental regulations. While the document does not specify immediate driveability concerns or dashboard warning lights, elevated emissions can prevent a vehicle from passing required inspections, particularly in states with strict emissions testing.

What's Being Addressed

The core of Service Action 24iO is the replacement of the original engine camshaft position sensors with updated versions. These new sensors are designed to resolve the tolerance issues and ensure the engine operates within its intended emissions parameters. This is a proactive measure to prevent future emissions-related problems.

Repair Procedure Summary

To correct this issue, technicians will install updated camshaft position sensors. This repair is available starting February 14, 2023. Dealers are instructed to refer to ELSA/ServiceNet for complete repair and claiming instructions. The process involves accessing the engine's camshaft position sensors and replacing them with the new parts. No specific part numbers or specialized tools are detailed in this communication, as technicians are directed to the internal service system for full guidance.

Important Warnings and Owner Information

Audi has provided several critical instructions for dealers regarding Service Action 24iO, which are important for owners to understand:

• Inventory Vehicles: Dealers are explicitly instructed to "Repair every affected inventory vehicle before delivery to consumers." This means any new or used 2021-2022 Audi Q8 camshaft position sensors issue must be rectified before the vehicle is sold.
• Owner Notification: The communication states, "Owner mailing – February 2023," indicating that Audi intends to notify affected vehicle owners. Owners should schedule repairs immediately upon receiving notification.
• California Emissions Requirements: For vehicles registered in California, specific regulations apply. The California Air Resources Board (CARB) and the Department of Motor Vehicles (DMV) require emissions-related campaigns to be completed before vehicle registration renewal. After the campaign work is performed, owners must be provided with a signed "Vehicle Emission Recall - Proof of Correction" certificate (RC EMISCAVWAU). These certificates can be ordered online by dealerships.

Owner Action

If you own a 2021 or 2022 Audi model, particularly a 2022 Audi Q8, and are concerned about the 2022 Audi Q8 camshaft position sensors issue, it is recommended to contact your authorized Audi dealership. Inquire about Service Action 24iO and whether your specific vehicle is affected. The repair involves installing updated camshaft position sensors and should be performed by a qualified Audi technician. This service action is distinct from a safety recall, but it is important for maintaining vehicle compliance with emissions standards.