2021-2022 Audi Camshaft Position Sensor Emissions Service Action 24iO

Audi has initiated Emissions Service Action 24iO to address a potential issue with the camshaft position sensors in certain 2021-2022 model year vehicles. This service action, released on February 14, 2023, aims to correct tolerance issues that could lead to increased tailpipe emissions. Owners of affected vehicles, such as those experiencing an Audi Q8 camshaft position sensor issue, are encouraged to have this repair completed promptly.

This action is crucial for maintaining the emissions compliance of your vehicle and ensuring its long-term performance. Audi will notify owners directly about this campaign, and the necessary repairs will be performed at no cost. On or about February 14, 2023, the campaign code 24iO was applied to affected vehicles.

Why This Matters

The primary concern addressed by Emissions Service Action 24iO is the potential for elevated tailpipe emissions. The engine camshaft position sensors (G40 and G163) play a vital role in the engine's timing and fuel delivery systems. When these sensors experience tolerance issues, they can send inaccurate data to the engine control unit, impacting combustion efficiency and leading to higher levels of pollutants in the exhaust.

While this issue may not immediately manifest as a noticeable drivability problem, it can affect your vehicle's ability to pass emissions inspections and contribute to environmental pollution. Addressing this proactively ensures your Audi continues to meet regulatory standards and operates as intended.

Symptoms

The main symptom associated with this issue is the potential for elevated tailpipe emissions. Unlike some other vehicle problems, this specific condition may not trigger a dashboard warning light or cause a noticeable change in vehicle performance for the driver. Instead, the issue stems from internal tolerance discrepancies within the engine camshaft position sensors (G40 and G163) that can subtly affect the engine's emissions output.

Owners might only become aware of this problem if their vehicle fails an emissions test. Therefore, it is important to respond to the Audi Emissions Service Action 24iO notification to prevent future emissions-related complications.

Important Warnings and Owner Information

Audi has provided several key warnings and pieces of information for both dealers and owners regarding this service action:

• Dealer Delivery Restriction: Dealers must ensure that every affected inventory vehicle has this campaign completed before delivery to consumers.
• No Wash/Loaner Claim: Dealers are instructed,