2023 BMW X7 Right Rear Wheelwell Hump Service Action

BMW has issued Service Information Bulletin SIB 41 02 23 to address a potential manufacturing defect affecting the right rear wheelwell hump in certain 2023 BMW X7 Sport Activity Vehicles. This service action, which replaces the earlier SI B41 02 23 dated May 2023, outlines a procedure for inspecting and repairing the affected area to prevent water ingress and corrosion.

This bulletin highlights a specific concern for owners of the 2023 BMW X7 right rear wheelwell hump. The repair described in SIB 41 02 23 is considered "mobile friendly," suggesting it can be performed with relative ease.

Symptoms

Owners of affected 2023 BMW X7 vehicles may not notice any immediate symptoms, as the issue is a structural defect. However, due to normal body flex over time, a small indentation or crack can form in the body sheetmetal of the right rear wheelwell, also known as the wheel house. This can lead to:

• Water ingress into the vehicle's interior or other sensitive areas.
• A risk of corrosion in the affected body sheetmetal.

Cause

The root cause of this issue is attributed to a possible error in the metal stamping tool used during the manufacturing process of the wheelwell. This defect can lead to the formation of the indentation or crack in the 2023 BMW X7 right rear wheelwell hump.

Important Warnings

During the inspection process, technicians are advised that if no cracks or indentations are seen or felt in the circular pressed hump on the right rear wheelwell, no further action is needed, and the vehicle can be reassembled. This prevents unnecessary repairs if the defect is not present.

Additionally, specific work packages (Work Package #5 and #6) related to this service action are explicitly stated as not valid for the US Market.

Repair Procedure Summary

The repair process for the 2023 BMW X7 right rear wheelwell hump involves several steps, as detailed in SIB 41 02 23:

1. Preparation: The right rear wheelwell cover is removed following repair instructions in ISTA/AIR (51 71 041).
2. Inspection: Technicians visually inspect the circular pressed hump on the right rear wheelwell for cracks or indentations. A strong light and tactile inspection are used. Cables and wires must be moved aside for a clear view.
3. Access: If rework is needed, luggage compartment panels are removed according to ISTA/AIR (51 47 220) instructions.
4. Patch Preparation: A replacement panel is cut out using a template and dimensions provided in the SIB. The vehicle's existing wheelwell panel does not need to be cut.
5. Marking: The cut panel is placed onto the wheelwell hump, and its edges are traced onto the vehicle with a marker.
6. Surface Cleaning: The marked area is cleaned of any coating, wax, or body sealant.
7. Crack Mitigation: If cracks or indentations are present, their ends are drilled using a 3 mm drill bit to prevent expansion. Care must be taken to avoid damaging internal parts or control devices, which may need to be removed beforehand. Drill chips must be vacuumed out.
8. Adhesive Application: K5 adhesive is applied to the prepared panel. Technicians should review specific notes on handling K5 adhesive (41 00 repair instructions).
9. Panel Installation: The panel is firmly pressed onto the wheelwell hump. The cut edges are coated with K5 adhesive, and tape may be used to secure it while curing.
10. Curing and Sealing: The K5 adhesive is allowed to cure for approximately 10 hours at room temperature (~68°F). The area is then sealed with D2 sealant.
11. Reassessment: The vehicle is reassessed once the repair is complete.

Required Parts and Materials

To perform the repair for the 2023 BMW X7 right rear wheelwell hump, specific parts and bulk materials are required:

• Cover panel, wheel house, right: Part Number 41 00 7 947 142
• Sealant D2: Part Number 83 19 5 A66 E25
• Body adhesive K5: Part Number 83 19 2 158 654

Dealers are instructed to monitor the weekly Parts Matrix for cover panel ordering procedures and to use the VIN/chassis number to determine the correct part numbers for the specific vehicle.

Claim Information

Reimbursement for this service action, identified by Repair Code 0041180200 (G07 Rework the wheel arch end plate), is processed via normal claim entry. Applicable work packages include:

• 00 73 955 / 00 73 358: For inspection only (no repair necessary).
• 00 73 957 / 00 73 360: For inspection and rework of the wheel arch end plate.
• 00 74 674 / 00 74 074: For inspection with third-party external service.

Sublet reimbursement for bulk materials (up to $25.00) and third-party rework (up to $425.00) is also outlined. Vehicle owners may also qualify for Alternative Mobility Solution (AMS) expense reimbursement, referencing SI B01 29 16 for details.

NHTSA ID: 10244270