2023-2024 BMW i5/i7 Rattling Washer Reservoir Noise TSB

Owners of 2023-2024 BMW i5 and i7 models may experience a low-frequency rattling noise originating from the front right footwell area. This issue, detailed in BMW Technical Service Bulletin (TSB) 61 01 24, describes a specific problem with the vehicle's washer fluid reservoir.

Symptoms

When driving over rough or uneven surfaces, vehicle occupants may notice a distinct low-frequency rattling noise inside the cabin. This BMW i5 rattling noise is typically perceived as coming from the front right footwell area of the vehicle.

Defect Codes

BMW has identified this issue with the following internal defect code:

• 6166013700: "Washer fluid reservoir (including filler channel) Loose"

Diagnosis and Trigger Conditions

The root cause of the BMW i5 rattling noise is excessive play in the washer fluid reservoir mounting hook. This looseness allows the reservoir to vibrate against surrounding components, generating the audible rattling sound.

To diagnose the issue, a technician will:

1. Inspect the washer fluid reservoir for any signs of play or looseness. This includes checking the mounting points and any areas where the reservoir might make contact with other parts.
2. Confirm that the washer fluid reservoir is indeed the source of the rattling noise.

Repair Procedure Summary

If the washer fluid reservoir is confirmed as the source of the rattling noise, the repair involves replacing the reservoir with an improved part. The procedure, referenced as "Replacing the washer fluid reservoir for the washer system 61 71 065 | REP-REP-P-6171065-G60/G70 - V.1", includes the following steps:

1. Remove the existing washer fluid reservoir.
2. Install the new, improved washer fluid reservoir.
3. After installation, the technician will perform a leak check to ensure proper sealing.
4. Finally, the washer system's functionality will be tested to confirm the repair is successful and the rattling noise is eliminated.

Required Parts

The following part is specified for the repair:

• Part Number: 61 66 5 A3A 029
• Description: Tank window Washer System

Technicians will use the vehicle's VIN or chassis number with BMW's ETK or AIR systems to determine the precise part number applicable to the specific vehicle's equipment and options.

Important Information for Owners

This repair is classified as "MOBILE FRIENDLY," indicating it may be possible to perform outside of a traditional service center setting, depending on the dealer's capabilities. The repair is covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks. For warranty claims, specific labor operations like 61 71 065 (Main work) or 61 71 565 (Plus work) are used, along with diagnostic labor operations such as 51 00 001 or 00 58 500.

Owner Action

If you own a 2023-2024 BMW i5 or i7 and are experiencing a BMW i5 rattling noise from the front right footwell, you should contact your authorized BMW dealership. Describe the symptoms to them, referencing TSB 61 01 24. The dealership will perform the necessary diagnosis and replace the washer fluid reservoir if it is found to be the cause of the noise.

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Source: NHTSA ID: 10249026