2025 BMW 5 Series Left Footwell Rattle Noise SIB 51 19 25

Symptoms

Owners of certain 2025 BMW 5 Series and M5 vehicles may notice an audible rattle. The primary symptom is a "rattle sound emanates from the left footwell panel" when driving over rough roads. If you hear a "Bonnet (Hood) release lever including bowden cable Unpleasant noises" from this area, your vehicle may be affected by this issue.

Cause

BMW has identified the root cause of the left footwell rattle noise. The Ultrasonic Camera Automated Parking (UCAP) control unit is positioned too close to the front hood release Bowden cable. This proximity allows the two components to make contact and vibrate against each other, leading to the audible rattle.

Repair Procedure Summary

To address the 2025 BMW 530i rattle noise, technicians will perform a specific repair outlined in SIB 51 19 25. The procedure involves several steps:

1. The driver-side kick panel and the distribution box in the left footwell area must first be removed or lowered to gain access.
2. Technicians will then carefully identify the exact point where the front hood release Bowden cable is contacting the UCAP connector.
3. Once the contact area is identified, it will be marked, for example, using tire chalk.
4. The Bowden cable in the marked area will then be wrapped with an appropriate thickness of felt tape (1 mm, 2 mm, or 3 mm) and length to prevent further contact.
5. Finally, the cable will be tapped against the UCAP connector to confirm that the rattle noise is no longer audible, ensuring the repair is successful. A photo in the bulletin demonstrates the application of a dampening pad during this process.

Required Parts

To perform this repair, BMW specifies the following part:

• Part Number: 51 45 2 353 024
• Description: Set felt strip self-adhesive
• Quantity: As needed

Warranty Information

This repair for the 2025 BMW 530i rattle noise is covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks. Dealers will use repair code 5123033900, labeled as "Bonnet (Hood) release lever including bowden cable Unpleasant noises." Specific labor operations for diagnosis (51 00 001* or 00 58 500*) and repair (51 45 184, 51 45 684, and 51 99 000*) are provided for claiming purposes. For detailed claiming procedures, technicians are referred to SI B01 01 20 or B01 07 20.

Important Warnings

BMW is not notifying consumers directly about this service bulletin. Owners should be proactive in addressing any left footwell rattle noise by visiting their authorized BMW service center.

Source: NHTSA ID: 11027768