2020-2023 Audi e-tron Models myAudi App AC Timeout TSB

Audi has released Technical Service Bulletin (TSB) 2076636/2 to address a specific issue affecting the myAudi application's ability to control the auxiliary air conditioner in certain 2020-2023 Audi e-tron models. This TSB outlines diagnostic steps and repair procedures for instances where the app fails to activate the auxiliary climate control, leading to a frustrating Audi e-tron AC app timeout.

This bulletin, identified as Transaction No. 2076636/2, was initially published on January 30, 2025, and subsequently revised on March 18, 2025. The revision specifically updated the warranty table information. It targets a functional problem within the vehicle's systems that prevents seamless communication with the myAudi app for this feature. Owners of affected Audi A7 e quattro (2021-2022 MY), Audi A8 e quattro (2020-2021 MY), and Audi Q5 e quattro (2021-2023 MY) models may encounter this problem.

Symptoms

Owners experiencing this issue will notice that the auxiliary air conditioner cannot be started remotely through the myAudi app. When attempting to activate the system, the app will display a specific error message. The customer complaint is typically described as: "The auxiliary air conditioner permanently cannot be started via the myAudi app."

Fault Codes / Error Messages

The primary symptom reported by customers is the inability to start the auxiliary air conditioner via the myAudi app. This is accompanied by a specific error message appearing within the application:

• "Auxiliary air conditioner could not be started: Timeout"

This message is typically associated with two distinct error codes, depending on the mobile device's operating system:

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

Important Notice Regarding Scope

It is crucial to note that Audi TSB 2076636/2 explicitly states that it only refers to these two error codes: "E:RPC.PA.2" and "E:PA.RPC.5". Other related error codes, such as "RPC.PA.unfetched", are not covered by this specific bulletin. If you encounter a different code, further diagnosis outside the scope of this TSB may be required to resolve the Audi e-tron AC app timeout.

Diagnosis

Workshop findings confirm that the auxiliary air conditioner cannot be started using the myAudi app, and the aforementioned error codes (E:RPC.PA.2 or E:PA.RPC.5) are present. However, an important diagnostic distinction is that the auxiliary air conditioner can still be activated manually directly within the vehicle. This confirms the issue lies specifically with the remote activation via the app and not with the auxiliary air conditioner system itself.

Repair Procedure Summary

To address the Audi e-tron AC app timeout issue, Audi outlines a series of steps for technicians. These steps aim to reset and reconfigure the relevant control units and communication interfaces:

1. Reset Control Unit 005F: The first step involves resetting control unit 005F to its factory settings. This is typically performed through the MMI (Multi Media Interface) menu in the vehicle, which manages various infotainment and vehicle settings.
2. Reset High-Voltage Battery Charger Control Module (AX4): Technicians must use diagnostic tools to reset the "Timer and profiles" settings within the High-voltage battery charger control module, designated as AX4 (address word 00C6). This module plays a role in managing the vehicle's high-voltage system and associated functions, including climate control. This reset is performed via the basic settings using diagnostics.
3. Renominate Key User: After the resets, the key user for the vehicle needs to be nominated again. This step ensures that the vehicle's online services and personalized settings are correctly re-established and linked to the owner's myAudi account. Following this, the function should be rechecked.
4. Terminal 30 Reset (If Issue Persists): If the problem with the Audi e-tron AC app timeout continues after the initial steps, a more comprehensive reset is required. This involves performing a terminal 30 reset by disconnecting the 12V battery and the Data Bus On Board Diagnostic Interface, J533 (address word 0019), for approximately one hour. A terminal 30 reset clears temporary electrical system states and can resolve persistent communication glitches.

Warranty Information

For warranty claims related to this issue, the Service Number is 9035 and the Damage Code is 0039. All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual. If the vehicle is outside of any warranty, this Technical Service Bulletin is informational only, and repair costs may not be covered.

Without Disconnection of the Battery:

• Claim Type: If the vehicle is outside of any warranty, this Technical Service Bulletin is informational only.
• Service Number: 9035
• Damage Code: 0039
• Labor Operations:
  • GFF / Guided Functions: 0150 0010 (See SRT with associated operations)
  • GFF / Guided Functions: 0150 0060 (Time stated on the diagnostic protocol)
• Claim Comment: As per TSB 2076636/2

With Disconnection of the Battery:

• Claim Type: If the vehicle is outside of any warranty, this Technical Service Bulletin is informational only.
• 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 (See SRT with associated operations)
  • Loosen and secure battery earth strap: 9785 0999 (10 TU)
• Claim Comment: As per TSB 2076636/2

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Source: NHTSA ID: 11016536