2021-2022 Audi Q7/Q8 MIL/EPC Light On with P060C00

Owners of certain 2021-2022 Audi Q7 and Q8 models equipped with the 3.0 L V6 TFSI engine may experience various warning lights on their instrument cluster, including the "MIL light on" (Malfunction Indicator Lamp) and "EPC light on" (Electronic Power Control). These issues are often accompanied by a noticeable "poor performance" from the vehicle.

Symptoms

If you own a 2021-2022 Audi Q7 or Q8 and observe any of the following, your vehicle may be affected by the condition described in Audi Technical Service Bulletin PSS 01, reference number 01 23 33 2067767/2:

• "MIL light on" in the instrument cluster.
• "EPC light on" in the instrument cluster.
• Other various warning lamps illuminating.
• Experiencing "poor performance" from the engine.

Fault Codes / DTCs

Technicians diagnosing this issue will typically find a specific Diagnostic Trouble Code (DTC) stored in the Engine Control Module (ECM), identified as J623 (address word 0001). The relevant DTC is:

Code	Description	Module
P060C00	Control module internal system fault with symptom 30924	ECM

This DTC, P060C00, points to an internal issue within the engine's control system.

Technical Background

Audi has identified that the root cause of the "MIL light on," "EPC light on," and "poor performance" symptoms, along with the P060C00 fault code, is a discrepancy within the engine control unit software. This software anomaly leads to the internal system fault detected by the ECM.

Important Warnings for Owners

Audi Technical Service Bulletin 01 23 33 2067767/2 provides critical guidance for this specific issue:

• "Please postpone repairs as there is currently no effective repair for the complaint described by the customer."
• "Do not replace any components for this condition since this will not resolve the customer's concern."

This means that attempting to replace parts like the ECM or other engine components will not fix the underlying software problem and would be an unnecessary expense.

What Owners Should Do

If your 2021-2022 Audi Q7 or Q8 is experiencing the "MIL light on" or "EPC light on" with associated "poor performance" and DTC P060C00, it is important to understand that a permanent solution is still under development. Audi advises against any immediate repairs, as there is currently no effective fix, and replacing components will not resolve the issue.

When you visit your Audi dealer, they are instructed to create a PSS (Pending Service Solutions) record. This helps Audi track the prevalence of the issue and ensures you are in the system for future updates once a definitive software solution becomes available. This bulletin, 01 23 33 2067767/2, supersedes a previous bulletin, Group 01 number 22-23, dated August 11, 2022, indicating ongoing efforts to address this concern.

Revision History

This Technical Service Bulletin has undergone revisions:

• Revision 2 (January 3, 2023): Revised the header to include updated models.
• Revision 1 (August 11, 2022): Initial publication of the bulletin.

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Source: NHTSA ID: 10230577