2021-2024 BMW X5, X6, XM Rear Seat Rattle Noise TSB SIB 52 05 24

BMW has released Service Information Bulletin (SIB) 52 05 24 to address a common concern regarding rattling noises from the rear seats in certain models. This bulletin specifically applies to 2021-2024 BMW X5, X6, and XM vehicles, including the F95, F96, G05, G06, and G09 series, produced from the start of production up to January 27, 2023. Owners experiencing a BMW X5 rear seat rattle noise may find this information helpful.

Symptoms

Owners may notice a distinct rattling noise originating from the area of the second-row rear seat backrest. A key characteristic of this issue is that the noise typically disappears when the rear seat backrest is folded down.

Cause of the Rattle

According to BMW, the primary cause of this rattling noise is an insufficient amount of grease within the seat's lock mechanism(s). Over time, the lack of proper lubrication can lead to friction and noise during vehicle operation.

Important Warnings

When addressing this issue, it is crucial to apply the special lubricant correctly. BMW explicitly warns that applying too much lubricant can have adverse effects: "Too much lubricant leads to the lubricant being carried over into the lock, and thus failure of the immobilization function."

Repair Procedure Summary

The repair outlined in SIB 52 05 24 involves lubricating the seat lock mechanism. After confirming that the rattling noise is indeed coming from the rear seat backrest, technicians will lubricate the affected left and/or right second-row seat lock mechanism(s) using a special lubricant. The lubricant should be applied thinly to the surface of the plastic element and the rotary striker. If the BMW X5 rear seat rattle noise persists after lubrication, technicians are advised to reference Service Information B52 06 19 for further diagnosis.

Required Tools or Parts

To perform this repair, BMW specifies the use of a special lubricant. The relevant part numbers are:

• 83 19 5A4E439: Lubricant
• 83 23 0 396 713: Klubersynth LF 44-22 (50 gr tube, sufficient for 10+ seat frames/up to 5 vehicles). This item should be ordered as needed and not kept in stock.

This repair, identified by defect code 5220153900, falls under the OEM fault label "Backrest lock / rear seat adjustment / cargo adjuster/ rear seat backrest lock Unpleasant noises."

Owner Action

If you own a 2021-2024 BMW X5, X6, or XM and are experiencing a BMW X5 rear seat rattle noise, it is recommended to schedule an appointment with an authorized BMW dealership. This repair is covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks. The dealership will be able to diagnose the issue and perform the necessary lubrication as per SIB 52 05 24. For labor operation details, technicians may refer to SI B01 01 20 or B01 07 20.

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Source: NHTSA ID: 11006735