2020-2023 Audi e-quattro myAudi App AC Timeout TSB

Symptoms

Owners of 2020-2021 Audi A8 e quattro, 2021-2022 Audi A7 e quattro, and 2021-2023 Audi Q5 e quattro models may experience a functional issue where the auxiliary air conditioner cannot be started using the myAudi app. When attempting to activate the auxiliary air conditioner remotely, the app displays a specific message indicating a failure to connect or a timeout.

Fault Codes / Error Messages

When the Audi e-quattro myAudi app timeout occurs, the myAudi app will show the message: "Auxiliary air conditioner could not be started: Timeout". This message is typically accompanied by one of two specific error codes:

• E:RPC.PA.2 (for iOS devices)
• E:PA.RPC.5 (for Android devices)

It is important to note that other error codes, such as "RPC.PA.unfetched", are not covered by this Technical Service Bulletin 90 25 62 2076636/1.

Diagnosis / Trigger Conditions

The primary condition for this issue is the inability to start the auxiliary air conditioner remotely via the myAudi app. While the app fails to initiate the system, the auxiliary air conditioner can still be activated directly from within the vehicle itself. This indicates a communication or control issue specifically related to the app's functionality rather than the auxiliary air conditioner itself.

Repair Procedure Summary

To address the Audi e-quattro myAudi app timeout and related error codes, Audi outlines a multi-step service procedure detailed in TSB 90 25 62 2076636/1:

1. Control Unit Reset: The first step involves resetting control unit 005F to its factory settings. This procedure is performed through the MMI menu within the vehicle.
2. High-Voltage Battery Charger Module Reset: Technicians should use diagnostic tools to reset the "Timer and profiles" function within the High-voltage battery charger control module, identified as AX4 (address word 00C6). This reset should be performed to the factory settings via the basic settings function in the diagnostic system.
3. Key User Re-nomination: The key user for the vehicle should be nominated again. After this step, the auxiliary air conditioner function should be rechecked via the myAudi app to see if the issue is resolved.
4. Terminal 30 Reset (If Persistent): If the issue persists after the initial steps, a terminal 30 reset is required. This involves disconnecting the 12V battery and the Data Bus On Board Diagnostic Interface, J533 (address word 0019), for approximately one hour. This action helps to fully reset certain electrical systems and clear any lingering communication errors.

Warranty Information

Audi provides specific warranty claim details for this service bulletin:

For repairs performed without battery disconnection:

• Claim Type: Informational only if the vehicle is outside of its warranty period.
• Service Number: 9035
• Damage Code: 0039
• Labor Operations:
  • GFF / Guided Functions: 0150 0010 (refer to SRT for associated operations)
  • GFF / Guided Functions: 0150 0060 (time stated on the diagnostic protocol)
• Claim Comment: As per TSB 2076636/1

For repairs performed with battery disconnection:

• Claim Type: Informational only if the vehicle is outside of its warranty period.
• Service Number: 9035
• Damage Code: 0039
• Labor Operations:
  • GFF / Guided Functions: 0150 0060 (time stated on the diagnostic protocol)
  • Remove and install data bus control unit: 9035 19XX (refer to SRT for associated operations)
  • Loosen and secure battery earth strap: 9785 0999 (10 Time Units)
  • Loosen and secure battery earth strap: 9785 0999 (20 Time Units)

Important Warnings

NOTICE
This TSB only refers to error codes “E:RPC.PA.2