2023-2024 Audi Windshield Washer Hose Leak TSB

Symptoms of a Windshield Washer Hose Leak

Owners of 2023-2024 Audi models, including the Audi e-tron, may experience several symptoms indicating a problem with the corrugated windshield washer hose. These issues stem from a leak within the cabin's washer system.

Common signs include:

• Diminished wash pressure when operating the windshield washer system.
• Wet carpeting inside the cabin.
• A noticeable odor of windshield washer solvent inside the cabin.
• Various malfunctions related to the electrical system, potentially due to solvent exposure.

The Cause: Ruptured Corrugated Hose

The root cause of these symptoms is a rupture in the corrugated windshield washer hose located inside the vehicle's cabin. This hose is often bundled with the wiring harness, making it susceptible to abrasion and damage. When the hose ruptures, windshield washer fluid can leak into the cabin, leading to the observed issues and potentially damaging electrical components. The TSB includes figures illustrating a ruptured hose and accompanying wiring abrasion.

Repair Procedure Summary

Audi Technical Service Bulletin 92 24 40 2065963/3 outlines the steps for diagnosing and repairing this issue. The process begins with thorough documentation of the damage.

1. Damage Documentation: Technicians must take clear photos of the damaged hose, both from a distance and close-up. This documentation is then uploaded to Doc-IT.
2. Hose Section Removal: After documentation, a 100 mm section of the damaged corrugated washer hose, encompassing 50 mm on each side of the rupture, is removed. This section is retained for potential return to the WPRC (Warranty Parts Return Center) to assist Audi in gathering additional information for their ongoing investigation.
3. Elsa Repair Guidance: The detailed repair procedure for ruptured corrugated windshield washer hoses is found in the Elsa system. Technicians navigate through the path: Electrical System >> Electrical Equipment General Information >> 92 Windshield Wiper/Washer System >> Washer Fluid Hoses >> Corrugated Hose Washer Fluid Line, Repairing for specific instructions.
4. Component Identification: Repair components are identified using the vehicle's VIN and the ETKA parts catalog, which provides illustrations of the necessary parts, similar to Figure 3 in the TSB.
5. Comprehensive Repair: All necessary repairs, including any damage to the wiring harness caused by the leak, must be completed.

This repair addresses the Audi e-tron windshield washer leak and related issues by replacing the compromised hose section and repairing any collateral damage.

Warranty Information

For vehicles still under warranty, claims for this repair should be submitted according to Audi's Warranty Policies and Procedures Manual. The service number for this repair is 9254, with a damage code of 0050. The labor operation for windshield washer system hose repair is 9254 4100, and it should be performed after access has been gained to the damage site. Diagnostic time (GFF) and road tests (prior to and after service) are listed as 0 TU (Technical Units) and are not subject to allowance. The claim comment should reference TSB 2065963/3.

Important Warnings

Audi notes that the investigation into the production solution for this issue is ongoing. Additionally, all part and service references within this TSB (2065963) are subject to change and/or removal. Technicians are advised to always verify the latest information and part bulletins with their Parts Department and/or ETKA before proceeding with any repairs.

Source: NHTSA ID: 11007270