2024 BMW 5/7 Series Rattling Washer Fluid Reservoir

BMW has issued Service Information Bulletin SIB 61 01 24 (Revision 3), dated January 6, 2025, to address a common complaint of a rattling noise originating from the windshield washer fluid reservoir in certain 2024 BMW 5 Series and 7 Series vehicles. This bulletin replaces the previous SI B61 01 24 dated July 2024.

Symptoms

Owners of affected 2024 BMW G60 (5 Series Sedan, i5 Sedan) and G70 (7 Series Sedan, i7 Sedan) models may experience a low-frequency rattling noise inside the vehicle's cabin. This noise is typically heard when driving over rough surfaces and often sounds as though it is coming from the front right footwell area. This can be a noticeable and irritating BMW 5 Series rattling noise.

Diagnosis

To diagnose the rattling noise, technicians are instructed to first inspect the washer fluid reservoir for any play or looseness. They will also check the mounting points and surrounding areas for signs of contact that could cause noise. The next step is to confirm that the washer fluid reservoir is indeed the source of the noise. A video attachment, V61 02 24, is available to assist technicians in identifying the issue.

Cause

The root cause of this rattling noise has been identified as excessive play in the washer fluid reservoir's mounting hook. This looseness allows the reservoir to vibrate, generating the distinct low-frequency rattling sound that can be heard inside the vehicle's cabin.

Repair Procedure Summary

If the rattling noise is confirmed to originate from the washer fluid reservoir, the repair involves replacing the reservoir with an improved part. The general procedure outlined in Service Information Bulletin SIB 61 01 24 includes:

1. Initial Inspection: Technicians will inspect the existing washer fluid reservoir for any movement or looseness and check its mounting points.
2. Confirmation: Verify that the reservoir is the definitive source of the rattling noise.
3. Replacement: If confirmed, the old washer fluid reservoir will be replaced with a new, improved version. This step specifically refers to following the repair instructions titled "Replacing the washer fluid reservoir for the washer system 61 71."
4. Post-Installation Check: After installing the new reservoir, the system will be checked for leaks and its functionality will be tested to ensure proper operation.

Required Parts

The specific washer fluid reservoir part number required for replacement depends on the vehicle's optional equipment, such as the parking assistant system. Technicians must use the vehicle's VIN or chassis number in BMW's Electronic Parts Catalog (ETK) or Aftersales Information Research (AIR) system to determine the correct part. The bulletin lists two primary part numbers:

• 61 66 5 A3A 028: For vehicles equipped with the (5DM) Parking Assistant system (2 washer pumps).
• 61 66 5 A3A 029: For vehicles equipped with rear Autonomous Parking Camera, (5DN) Parking Assistant Plus, or (5DW) Parking Assistant Professional (3 washer pumps).

The defect code associated with this issue is 6166013700, labeled as "Washer fluid reservoir (including filler channel) Loose."

Important Warnings

BMW emphasizes the importance of using only approved washer fluids. Washer fluids containing silicone additives can damage the washing system. Owners should refer to their vehicle's owner's manual for information on BMW's approved Windshield Washer Pre-mixed fluid or diluted concentrate. It is crucial not to exceed the allowable washer fluid dilution ratios, which are regulated by the U.S. EPA and individual states.

Warranty Information

This repair, including parts and labor, is covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks. Labor operations for diagnosis include 51 00 001 (Localizing body complaint(s)) and 00 58 500 (Diagnosis Worktime Flat Rate). Repair labor operations are 61 71 065 (Replacing washer fluid reservoir for washer system - Main work) or 61 71 565 (Replacing washer fluid reservoir for washer system - Plusposition work).

Owner Action

If you own a 2024 BMW 5 Series or 7 Series and are experiencing a low-frequency rattling noise, particularly from the front right footwell area, contact your authorized BMW dealership. Describe the BMW 5 Series rattling noise symptom clearly. The dealership will be able to diagnose the issue using Service Information Bulletin SIB 61 01 24 and perform the necessary repair under warranty if applicable.

NHTSA ID: 11013049