2019-2024 Audi Windshield Washer Hose Leak TSB

Audi has released Technical Service Bulletin (TSB) 92 24 40 2065963/3 to address issues related to a leaking corrugated windshield washer hose in various 2019-2024 Audi models. This TSB, which supersedes TSB Group 92 number 23-37 dated October 2, 2023, provides technicians with updated procedures for diagnosing and repairing the problem. If you own a 2019-2024 Audi and are experiencing symptoms like a diminished washer spray or wet carpeting, your vehicle may be affected by this Audi e-tron washer hose leak issue.

Symptoms of a Leaking Windshield Washer Hose

Owners of affected Audi vehicles may notice one or more of the following symptoms:

• "When the windshield washer system is operating the wash pressure is diminished."
• "The carpeting inside the cabin is wet."
• "There is an odor of windshield washer solvent inside the cabin."
• "Various malfunctions relating to the electrical system are experienced."

These issues stem from a rupture in the corrugated windshield washer hose, which is located inside the cabin and often wrapped within the wiring harness bundle. The leak can lead to solvent seeping into the vehicle's interior and potentially causing damage or malfunctions to electrical components.

Technical Background

The TSB explains that a windshield washer solvent leak can develop in the corrugated windshield washer hose located within the cabin. This hose is specifically the one wrapped among the vehicle's wiring harness bundle. The damage can manifest as a rupture in the hose, sometimes accompanied by an abrasion to the adjacent wiring.

Repair Procedure Summary

Audi's repair procedure, outlined in TSB 92 24 40 2065963/3, involves several steps for technicians:

1. Documentation and Sample Collection: Before any repair, technicians must take clear photos of the damage (both distant and close-up views) and upload them to Doc-IT. Following this, a 100 mm section of the damaged corrugated hose (50 mm on each side of the damage) must be removed and retained for return to the WPRC (Warranty Parts Return Center) for further investigation.
2. Repair Procedure Reference: Technicians are directed to consult the repair procedure for ruptured corrugated windshield washer hoses within the Elsa system. The specific navigation path is: Electrical System >> Electrical Equipment General Information >> 92 Windshield Wiper/Washer System >> Washer Fluid Hoses >> Corrugated Hose Washer Fluid Line, Repairing.
3. Component Identification: Repair components can be identified and ordered using the ETKA system, referencing the vehicle's VIN. An illustration similar to Figure 3 in the TSB helps in visualizing the necessary parts.
4. Complete Repairs: All necessary repairs must be performed, including addressing any wiring damage that may have occurred due to the leak. The removed hose section must be packaged and held for WPRC request.

This process ensures that the Audi e-tron washer hose leak is properly documented, repaired, and that data is collected to aid ongoing investigations.

Important Warnings for Owners

Owners should be aware of the following:

• Warranty Coverage: "If the vehicle is outside of any warranty, this Technical Service Bulletin is informational only." This means that if your vehicle is no longer under warranty, you may be responsible for the cost of the repair.
• Parts Availability: "All part and service references provided in this TSB (2065963) are subject to change and/or removal. Always check with your Parts Department and/or ETKA for the latest information and parts bulletins." While this primarily applies to technicians, it's good for owners to know that specific part numbers or procedures might be updated.

Owner Action

If you are experiencing any of the symptoms mentioned, such as a diminished washer spray, wet carpeting, solvent odor, or electrical malfunctions, it is recommended to contact your authorized Audi dealership. They can diagnose the issue and perform the necessary repairs according to TSB 92 24 40 2065963/3. Be prepared to discuss the symptoms you've observed with the service advisor.

---

Source: NHTSA ID: 11007351