2022-2026 Audi Q5 Hybrid MIL with B200000 Fault

Audi has released a dealer communication, NHTSA ID 11002951, regarding a specific issue affecting certain 2022-2026 Audi Q5 Hybrid models, particularly the 2024 Audi Q5 Plug-in Hybrid. This communication addresses instances where the Malfunction Indicator Light (MIL) illuminates due to an Audi B200000 fault code related to the high voltage charger. While the root cause is still under investigation, Audi has provided interim charging recommendations and anticipates a technical service bulletin (TSB) with reference ETA CW26.

Symptoms

Owners of certain 2022-2026 Audi Q5 Hybrid models, specifically the 2024 Audi Q5 Plug-in Hybrid, may observe the Malfunction Indicator Light (MIL) illuminating on the dashboard. This symptom is typically linked to charging the hybrid battery at 110V with 100% charging power. The underlying issue is a control module fault stored in the J1050 high voltage charger, resulting in the Audi B200000 fault code.

Fault Codes / DTCs

The primary diagnostic trouble code (DTC) associated with this issue is:

Code	Description	Module
B200000	Control module faulty stored in J1050 high voltage charger	J1050 high voltage charger

Diagnosis / Trigger Conditions

The Audi B200000 fault is specifically triggered when affected 2022-2026 Audi Q5 Hybrid vehicles, particularly the 2024 Audi Q5 Plug-in Hybrid, are charged using a 110V power source at 100% charging power. This condition leads to the illumination of the Malfunction Indicator Light (MIL) and the storage of the B200000 fault code within the J1050 high voltage charger control module.

Important Warnings and Owner Actions

Audi has provided specific guidance for owners of 2022-2026 Audi Q5 Hybrid models to manage this condition while a permanent solution is being developed. It is crucial for owners to follow these recommendations to avoid triggering the fault.

• Do NOT charge at 110V/100% power: Owners of the 2024 Audi Q5 Plug-in Hybrid "should not use 110v at 100% power" to charge their vehicle's hybrid battery. This is the primary condition that leads to the Malfunction Indicator Light (MIL) and the Audi B200000 fault.
• Recommended Charging: Owners "can charge their Q5e at 220v at 100% charging power or 110v at 50% charging power." These methods are approved and will not trigger the fault.
• Public Charging: "Public level 2 charging infostructure is not affected as public is 220v." Owners can confidently use public 220V charging stations.
• Delivery Refusal: If a customer "refuses to take delivery of the vehicle until the final solution is implemented," dealers are instructed to contact their Area After Sales Manager (AASM) for guidance.
• No Immediate Recall Notification: Audi is currently investigating the root cause and will communicate updates as needed. Owners will not receive a direct recall letter for this specific issue at this time, as it is a manufacturer communication preceding a formal TSB.

Repair Procedure Summary

As of this communication, the root cause of the B200000 fault code is still under investigation by Audi AG. Therefore, a definitive repair procedure has not yet been issued. Audi is actively working on a solution, and further information will be provided in a forthcoming technical service bulletin (TSB), identified as ETA CW26. Dealers are instructed to track affected vehicles by entering their VINs into the PSS system for follow-up once a solution is released.

What Owners Should Know

While Audi works towards a permanent solution for the B200000 fault, owners should adhere to the recommended charging practices. Charging at 110V with 50% power will prolong the charging process, and owners should adjust their expectations accordingly. Audi emphasizes its commitment to resolving this issue and encourages owners to refer to the Audi USA EV portal at https://www.audiusa.com/us/web/en/ev-hub/charging.html for general charging information. Dealers are also advised to provide empathetic customer handling and follow up to ensure customer satisfaction.

Source: NHTSA Manufacturer Communication 11002951