2024-2025 BMW Washer Fluid Leak During Dynamic Driving

Owners of certain 2024-2025 BMW vehicles may notice a problem with their windshield washer system, specifically a BMW washer fluid leak dynamic driving condition. This issue, detailed in BMW Service Information Bulletin SIB 61 01 25, describes how washer fluid can be forced out of the windshield washer nozzles during highly dynamic driving, potentially emptying the reservoir.

Symptoms

The primary symptom of this issue is the loss of windshield washer fluid, particularly when driving aggressively or dynamically. Owners may observe that their washer fluid reservoir becomes completely empty, even if it was recently filled. This occurs because fluid is expelled from the nozzles during specific driving conditions, indicating a BMW washer fluid leak dynamic driving problem.

Cause

BMW has identified the root cause as insufficient fluid retention within the washer fluid supply hose system. This lack of retention allows pressure to build and force fluid out of the nozzles during high-performance maneuvers.

Repair Procedure Summary

To correct the BMW washer fluid leak dynamic driving issue, technicians will replace the driver and passenger side washer fluid diaphragms with new non-return (one-way) valves. The procedure involves several steps:

1. Disassembly: The washer fluid hoses are disconnected at their separation points on both the driver's and passenger's sides. Hose couplings are unlocked by sliding a lock down and gently squeezing a grey lock to unfasten. The rubber washer hose is then removed from its barb.
2. Assembly: A new non-return valve is installed onto the end of the existing coupling, ensuring it clicks into place. The washer hose is then reinstalled onto the barb of the new diaphragm. Finally, the washer hoses are secured into the guides of the windshield panel clips.
3. Testing: After the replacement, the windshield washer system is tested to ensure proper operation and to check for any remaining leaks.

Required Parts

The following part is required for this repair:

• Part Number: 61 61 9478357
  • Description: Spray nozzle with hose, driver's side ("LL" stands for German phrase Links Lenker, meaning left-hand drive).
  • Quantity: 2

Note: While this part is designated for G2x Series vehicles, for this repair on G9x vehicles (such as the G60, G70, G90, G99 models), only the non-return valve portion is necessary; the included washer nozzle portion is not used.

Warranty Information

This repair, identified by Repair Code 6166024800 (Windscreen washer system, lines/valves/connectors Leaking), is covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks. Diagnosis labor operations include 61 00 009* or 00 58 500*, and repair labor operation is 61 99 000. Technicians should refer to SI B01 01 20 or B01 07 20 for specific claim procedures.

Owner Action

If you experience a BMW washer fluid leak dynamic driving condition, particularly if your washer fluid reservoir frequently empties during spirited driving, you should contact your authorized BMW dealer. Explain the symptoms you are observing. Your dealer will be able to diagnose the issue and perform the necessary repair under warranty, as outlined in Service Information Bulletin SIB 61 01 25.

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Source: NHTSA ID: 11020928