2021-2023 Audi Q5 e Juddering When Engine Engages

Audi has issued Technical Service Bulletin (TSB) 2077067/2 to address a condition in 2021-2023 Audi Q5 e quattro models where the vehicle experiences juddering. This issue specifically occurs when the combustion engine engages, particularly after moving off. The TSB provides guidance for technicians on diagnosing and resolving this concern.

This bulletin, identified as TSB 2077067/2, is a revision 2, released on November 26, 2025, updating the initial publication from February 24, 2025. It includes revised condition details and updated warranty labor operations.

Symptoms

Owners of affected 2021-2023 Audi Q5 e quattro vehicles may notice that the vehicle "Vehicle judders after moving off and when the combustion engine engages." This juddering sensation can be a clear indicator of the underlying issue. During workshop diagnosis, technicians have confirmed that this complaint can be consistently reproduced.

Diagnosis and Trigger Conditions

Before proceeding with any repairs related to the juddering, technicians are instructed to ensure that the vehicle's software is up to date. Specifically, the current software version called out in TSB 2071340, titled "93 E-motor: Shuddering when charge level is low," must be installed. This prerequisite step helps rule out software-related causes for the juddering before investigating mechanical components.

Potential Cause and Repair Overview

The TSB indicates that the juddering can be linked to the fuel tank system. In some cases, the issue stems from the non-return valve on the fuel tank. This valve contains diaphragms that can become damaged, leading to the juddering sensation. Figure 1 in the TSB illustrates an example of a damaged olive green diaphragm, while Figure 2 provides an electronic parts catalog view of the relevant fuel tank components, helping technicians identify the specific part.

To address the Audi Q5 e fuel tank juddering, the repair procedure involves checking and potentially replacing the fuel hose that incorporates the non-return valve. The specific part number for the non-return valve on the fuel tank is 80A 201 741. Replacement parts for this component must always be ordered specifically for the individual vehicle via ETKA, Audi's electronic parts catalog system.

Important Warnings for Owners

Audi notes that even after the recommended software update, a "slight jolt may be noticeable in certain accelerator pedal positions" in very rare cases. This residual jolt is attributed to the combustion engine switching on. If this occurs, technicians are advised to check the diaphragms on the non-return valve for any signs of damage, as this could be the root cause of the persistent minor jolt.

Warranty Information

Warranty claims related to this TSB must adhere to the Audi Warranty Policies and Procedures Manual. If a vehicle is outside its warranty period, this Technical Service Bulletin serves as informational guidance only. The following codes are relevant for warranty claims:

• Service Number: 2040
• Damage Code: 0010
• Claim Comment: As per TSB 2077067/2

Specific labor operations and their associated codes are provided for technicians:

• Remove and install fuel pump: Labor operation code 2066 19XX (refer to SRT for associated operations).
• Check fuel hose (non-return valve): Labor operation code 2037 0199 (time stated on the diagnostic protocol).
• Replace fuel hose (non-return valve): Labor operation code 2037 5599 (estimated 10 Time Units).

Owner Action

If your 2021-2023 Audi Q5 e is experiencing juddering when the combustion engine engages, it is recommended to contact an authorized Audi dealership. Inform them about the symptoms and mention TSB 2077067/2. The dealership technicians can perform the necessary diagnostic checks, including verifying the software version and inspecting the fuel tank's non-return valve, to resolve the Audi Q5 e fuel tank juddering issue.

Source: NHTSA ID 11026218