2022 Audi Instrument Cluster CNG Mode Message

Owners of various 2022 Audi models, including the Audi e-tron, A4, A5, A6, A7, A8, Q5, Q7, Q8, S4, S5, S6, S7, S8, SQ5, SQ7, SQ8, RS 5, RS 6 Avant, RS 7, RS Q8, e-tron GT, and RS e-tron GT, may encounter an unusual message on their instrument cluster. This Technical Service Bulletin (TSB) addresses an erroneous display related to Compressed Natural Gas (CNG) systems, even in vehicles not equipped with CNG.

This bulletin, identified as 90 22 68 2067182/2, supersedes an earlier version (90 22-65 dated May 27, 2022) and was issued on June 6, 2022. It provides important clarification for both technicians and vehicle owners regarding this specific instrument cluster notification.

Symptoms You Might See

If your 2022 Audi is affected, you might see a warning message on your instrument cluster, specifically within the Audi Virtual Cockpit Gen2+ system. The message indicates a problem with a CNG system, despite your vehicle not having one. The verbatim messages reported by customers include:

• "CNG inspection due! CNG mode not available. Please contact workshop"
• "CNG mode not available in XXX. Please contact workshop"

This message typically appears very sporadically and is not persistent. It often disappears after an ignition cycle, meaning it may not be easily reproducible for a technician. If you see the Audi e-tron CNG mode message, it's likely a temporary display.

Technical Background of the Issue

Audi has identified that the appearance of this message is due to a highly sporadic startup timing issue within the vehicle's systems. This timing anomaly causes the instrument cluster to erroneously display the CNG-related message, even when the vehicle is not equipped with a CNG fuel system. This is a software-related glitch rather than a mechanical fault.

Important Warnings for Owners

This Technical Service Bulletin contains critical information for owners regarding this specific instrument cluster message. Audi explicitly states:

• "No repair is available at this time."
• "Do not perform any repairs. Repairs for this concern may be denied by warranty."

This means that if your vehicle displays the "CNG inspection due!" or "CNG mode not available" message, you should not seek repairs for it. Attempting to have a dealership perform repairs for this non-issue may result in the warranty claim being denied, potentially leaving you responsible for diagnostic or repair costs.

What to Do if You See This Message

If you encounter the Audi e-tron CNG mode message or similar on your instrument cluster, the recommended action is simple. Audi advises:

• "Instruct the customer that this condition is normal and that the complaint can be resolved by cycling the ignition."

This means you can resolve the message by simply turning your vehicle off and then restarting it. The message is sporadic and should clear after an ignition cycle. There is no underlying fault or safety concern associated with this erroneous display.

Warranty Information

Audi clarifies that "This TSB is informational only and not applicable to any Audi Warranty." This reinforces that the message is not indicative of a defect requiring warranty repair. Owners should be aware that any attempts to repair this condition will likely not be covered under warranty, as it is considered a normal and non-repairable condition.

NHTSA ID: 10214760