2021-2023 Audi e-tron Rear Axle Noise TSB

Owners of 2021-2023 Audi e-tron vehicles may notice an unusual Audi e-tron rear axle noise, specifically vibrations or a ticking sound emanating from the rear of the vehicle when driving at very slow speeds, typically below 5 km/h (approximately 3 mph). This condition has been identified by Audi in Technical Service Bulletin (TSB) 93 24 41 2073062/1, issued on February 19, 2024.

This TSB supersedes the previous Pending Service Solution (PSS) TSB 2071382 and outlines a software update as the resolution for the Audi e-tron rear axle noise.

Symptoms

Drivers may experience the following:

• Vibrations and/or ticking noise from the area of the rear axle at <5 km/h.

Workshop findings confirm that this noise originates directly from the electric drive motor located on the rear axle during slow-speed operations.

Important Warnings for Service

Audi has issued several critical warnings for technicians performing this update:

• The software update outlined in TSB 93 24 41 2073062/1 MUST ONLY be performed after Service Campaign 93N1 has been completed on the vehicle.
• Always use DoIP (Diagnostics over Internet Protocol) when flashing control modules via ODIS in supported vehicles. To activate DoIP, navigate to Administration>>General>>GFF Process>>DoIP communication>>Only allow DoIP communication within the diagnostic system. This setting will reset automatically after the diagnostic session ends. A red LED on the VAS 6154(A) tool indicates if DoIP is active.
• WARNING: To prevent damage to the high-voltage battery or high-voltage equipment during the software update, the high-voltage charging cable MUST BE UNPLUGGED from vehicles with high-voltage components. The high-voltage battery must not be charging during a software update.

Repair Procedure Summary

The resolution for the Audi e-tron rear axle noise involves a software update to specific control modules. The general procedure is as follows:

1. Refer to and follow all instructions provided in TSB 2011732, which details the operating instructions for Software Version Management (SVM).
2. Update the 00CE (J944) and 0051 (J841) control units using the SVM action code 51A005. This update ensures the electric drive motor operates correctly, eliminating the vibrations and ticking noise.

Required Software and Part Numbers

The software update targets specific control modules and versions. The table below outlines the diagnostic addresses, old and new software part numbers, and versions involved in resolving the Audi e-tron rear axle noise.

Diagnostic Address	Old Software Part Number	Old Software Version	HW Part Number	New Software Part Number (or higher)	New Software Version (or higher)	New HW Part Number	SVM Code Input
00CE (J944)	0FE 907 180 K	<1005	0EF 907 180 C, 0EF 907 180 F, 0EF 907 180 K	0FE 907 108 K	1007	0EF 907 180 C, 0EF 907 180 F, 0EF 907 180 K	51A005
00CE (J944)	0FE 907 180 F	<1002	0EF 907 180 F	0EF 907 108 K	1007	0EF 907 180 F	51A005
0051 (J841)	0EF 907 080 H	<1005	0EF 907 080 C, 0EF 907 080 E	0EF 907 080 H	1007	0EF 907 080 C, 0EF 907 080 E	51A005

Warranty Information

This service is covered under warranty using the following details:

• Service Number: 9350
• Damage Code: 0039
• Labor Operations: Software Update (Includes checking for DTCs) - 0151 0060 (Maximum 80 Time Units).
• Diagnostic Time: GFF, Road test prior, and Road test after procedures are listed with no allowance.
• Claim Comment: As per TSB 2073062/1.

If your vehicle is outside of warranty, this Technical Service Bulletin is for informational purposes only. All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual.

Owner Action

If you are experiencing a Audi e-tron rear axle noise with vibrations or ticking at low speeds, contact your authorized Audi dealership. Inform them about TSB 93 24 41 2073062/1. The software update should resolve the issue and is typically covered under warranty.

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Source: NHTSA ID: 10250574