2021-2023 Audi e-tron Rear Camera Cleaning Not Possible TSB

Audi has released Technical Service Bulletin (TSB) 92 25 44 2073568/4 to address an issue where the rearview camera's washer system fails to adequately clean the lens. This TSB, which supersedes previous bulletin Group 92 number 24-43 dated December 17, 2024, applies to certain 2021-2023 Audi e-tron and 2021-2022 Audi e-tron Sportback models.

Owners may experience a situation where, despite activating the washer system, the camera lens remains dirty, impairing visibility. This issue stems from a technical deficiency in the vehicle's mono pump system.

Symptoms

The primary symptom owners will notice is that the Audi e-tron rear camera cleaning function is not effective. Specifically, when attempting to use the washer system for the rearview camera, the pressure is insufficient to clean the lens of the camera. This results in a blurry or obstructed view from the rear camera, compromising safety and convenience.

Diagnosis and Technical Background

Workshop findings indicate that the root cause of the problem is that the system pressure of the mono pump is not high enough. The technical background further explains that the mono pump installed in affected vehicles is not strong enough and is not equipped with a non-return valve. This design flaw allows pressure to drop, preventing the washer fluid from effectively reaching and cleaning the camera lens.

Audi implemented a production change from a mono pump to a dual pump design on September 23, 2022, to mitigate this issue in newer vehicles.

Important Warnings for Owners and Technicians

Audi has issued critical notices regarding the application of this TSB:

• Original Part Confirmation: This TSB may only be used if the mono pump with part number 1K5 955 651 is installed from the factory. Technicians must utilize ETKA (Audi's electronic parts catalog) to confirm the original part installed before proceeding with any repairs.
• Strict Repair Criteria: Technicians must first reproduce the customer complaint to ensure it aligns with the issue described in this TSB. The repair outlined in this bulletin must only be carried out if all specified criteria (including model/type, chassis number, engine/motor, gearbox code, PR number, part number, software version, etc.) apply exactly. Failure to meet these criteria means the solution will not resolve the problem, potentially leading to repeat repairs. In such cases, the warranty claim may be rejected, and the cost of parts may be charged back to the dealership.
• Pre-Diagnosis: Before proceeding with the pump replacement, it is crucial to ensure there are no other reasons for low system pressure. This includes checking for low washer solvent, a clogged pump filter, low system voltage, obvious kinks in visible lines, or plugged nozzles.

Repair Procedure Summary

For vehicles experiencing the Audi e-tron rear camera cleaning issue due to low pressure, the repair involves replacing the existing mono pump with a dual pump version and modifying the wiring harness. The high-level steps are:

1. Initial Check: Verify that no other factors are causing low system pressure (e.g., low fluid, clogged filter, kinks in lines).
2. Pump Replacement: If no other reasons are found, the mono pump is replaced with the dual pump version.
3. Hose and Plug Installation: The filler plug is installed on the black outlet of the new pump, and the hose is attached to the white outlet. A non-return valve is fitted to this white outlet to prevent future pressure drops.
4. Wiring Modification: The pump connector polarity must be reversed. This involves swapping the positive and negative pins within the connector to the pump.

Required Parts and Tools

Technicians must use the specific parts listed in this TSB, even if they differ from those in ETKA. This includes superseding part numbers.

• Dual pump: 1K6 955 651 (Quantity: 01)
• Plug: 3V0 955 235 A (Quantity: 01)
• Fasteners, Bolts, Nuts, and Screws as needed per the Repair Manual (See ETKA/ELSA)

Warranty Information

Warranty claims for this repair must adhere to the Audi Warranty Policies and Procedures Manual. Claims are subject to review and audit by Audi Warranty. If the vehicle is outside of any warranty, this Technical Service Bulletin is informational only.

• Service Number: 9294
• Damage Code: 0011
• Labor Operations:
  • Remove and install pump for rear window wiper system: 9289 1900
  • Modify wiring harness: 9709 4999
• Claim Comment: As per TSB 2073568/4

Owner Action

If you own a 2021-2023 Audi e-tron or 2021-2022 Audi e-tron Sportback and are experiencing issues with your Audi e-tron rear camera cleaning system, it is recommended to schedule an appointment with an authorized Audi dealership. Describe the symptom of your rearview camera washer not working effectively. The dealership technicians will diagnose the issue and perform the necessary repairs according to TSB 92 25 44 2073568/4.

NHTSA ID: 11013740