2021-2024 Audi Windshield Washer Pump Inoperative TSB

Symptoms of an Inoperative Windshield Washer Pump

Owners of 2021-2024 Audi vehicles may experience issues with their windshield washer system. The primary symptoms reported are:

• The windshield washer system is inoperative.
• A windshield washer solvent leak is present.

These issues can often be easily reproduced during a workshop visit. If you notice your Audi windshield washer pump inoperative or leaking, it's important to have it inspected.

Fault Codes (DTCs)

When the windshield washer pump is inoperative or leaking, the Control Module BCM, J519 (address word 0009) may store one or more of the following Diagnostic Trouble Codes (DTCs):

Code	Description	Module
B126101	Windshield washer pump electrical error.	BCM
B126111	Windshield washer pump Short circuit to Ground (GND).	BCM
B126113	Windshield washer pump Open circuit.	BCM

These DTCs can be either static (persistent) or sporadic (intermittent).

Technical Background

The root cause for an Audi windshield washer pump inoperative condition or a leak is often related to the washer fluid itself. If the window washer pump becomes blocked due to frozen washer fluid, the resistance within the pump can exceed its upper operational limit. This excessive resistance then triggers the storage of one or more of the DTCs listed above in the BCM, J519 control module.

Repair Procedure Summary

Addressing an inoperative or leaking windshield washer pump involves several diagnostic and repair steps:

1. Functionality Check: Technicians will first perform a functionality check of the windshield washer pump.
2. DTC Diagnosis: If the pump is inoperative, the BCM (DA 0009) will be checked for DTCs B126101, B126111, or B126113. A hard reset of the BCM may be necessary to clear these DTCs before they can be erased.
3. Re-evaluation: After erasing DTCs, a functional check of the pump is performed again. If DTCs return and the pump remains inoperative, the ODIS test plan must be completed in its entirety as directed.
4. Washer Solvent Inspection: Technicians will check the type and concentration of the windshield washer solvent in the reservoir. This is critical as insufficient freeze protection can lead to pump damage. Reference is made to TSB 2038151 "92 Washer solvent level warning is on" for correct specifications.
5. Solvent Replacement: If the current washer solvent does not meet specifications, the reservoir must be emptied and refilled with the correct type and concentration. Customers will be advised on proper washer solvent usage to prevent future damage.
6. Leak Diagnosis: In cases where no DTCs are stored but the windshield washer pump is visibly leaking, the pump can be replaced without a full test plan. A photo documenting the leak must be submitted to DOC-IT.

Important Warnings

• Warranty Coverage: This Technical Service Bulletin (TSB 2067557/1) is informational only and is not applicable to any Audi Warranty. Owners should discuss potential costs with their dealer.
• Diagnosis Required: An inoperative windshield washer pump should not be replaced until a GFF test plan has been completed for recurring DTCs, or if a visible leak is confirmed without DTCs.

Required Tools or Parts

The repair process may require specific washer fluid that meets Audi's specifications. Technicians will refer to:

• TSB 2038151 "92 Washer solvent level warning is on" for guidance on the correct type and concentration of washer solvent.

What Owners Should Do

If you experience an Audi windshield washer pump inoperative or notice a leak in your 2021-2024 Audi, contact your authorized Audi dealer. Describe the symptoms you are observing. The dealer will perform the necessary diagnostics, including checking for DTCs B126101, B126111, or B126113, and inspecting your washer fluid to determine the appropriate repair.

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NHTSA ID: 10216043