2023-2024 BMW i7 Engine Soundproofing Delivery Stop

Important Warnings for Owners and Dealers

BMW has issued a critical advisory regarding vehicles affected by this delivery stop. It is crucial to adhere to the following instructions:

• "Do not deliver to a customer, a New, Certified Pre-Owned or Used vehicle subject to a Delivery Stop, until the vehicle is repaired."
• "Do not use or sell replacement equipment/parts subject to a Delivery Stop."
• When performing the repair, technicians are warned: "This is not the fastening nut for the sound insulation. Do not remove this nut."
• For any work involving the high voltage (HV) battery system: "CAUTION: Prior to disconnecting the 12 V battery ground terminal, deactivate the high voltage (HV) battery circuit. This must be done by a HV-trained technician. Refer to repair instruction 61 25 900 'De-energize the high voltage system'."

The Situation: Engine Compartment Soundproofing Issue

BMW AG has initiated a Delivery Stop, effective December 7, 2023, for certain Model Year 2023-2024 BMW i7 (G70) vehicles produced between July 4, 2022, and April 24, 2023. The issue concerns a small flap of sound insulation material in the engine compartment. This material may come into contact with some of the 12V B+ cables at the remote B+ charging point terminal, located along the passenger side inner fenderwell.

Potential Cause of Corrosion

If the sound insulation becomes damp and maintains contact with the mounting point of the positive cable terminal or the positive battery cable, there is a risk of corrosion occurring over time. This condition necessitates the delivery stop to prevent potential long-term issues related to the 2023 BMW i7 engine compartment soundproofing.

Repair Procedure Summary

To address the 2023 BMW i7 engine compartment soundproofing issue, technicians will follow a specific procedure:

1. Preparation: The acoustic cover is removed from the engine to access the inspection area. The B+ 12V junction point cover is also removed.
2. Sound Insulation Removal: The sound insulation located behind the B+ 12V cables is removed by detaching a hidden retaining nut. No other components need to be removed for this step.
3. Inspection: The exposed cables are inspected for any signs of corrosion. If no corrosion is present, the junction point cover and engine acoustic cover are reinstalled to complete the repair.
4. Corrosion Treatment (if present): If corrosion is found, the 12V battery is disconnected after deactivating the high voltage (HV) system by an HV-trained technician, following repair instruction 61 25 900. Photos of the corrosion must be taken and attached to a TSARA Info case for parts replacement approval.
5. Cleaning and Reconnection: Corroded cables are cleaned using a brass-bristle wire brush. Metal-bristle brushes should not be used as they can damage the cable terminals' protective plating. Electrical contact grease KF1 is applied to the exposed cable terminals. The cables and nuts are then reconnected, ensuring correct tightening torque as per instruction 6114. The 12V battery is reconnected, and the HV battery system is reactivated.

Required Tools or Parts

Specific parts may be required if corrosion is found and replacement is necessary:

• 61 12 5 A56 467: Battery Cable Positive terminal under floor (if required)
• 61 12 5 A56 470: Wiring Harness emARS under floor (if required)
• 83 19 2 295 229: Contact Grease KF1 (50 g) (sublet as required)

Additional materials like fluids, lubricants, one-time use screws, nuts, and seals may be selected from the Electronic Parts Catalog (ETK) or other approved BMW resources as needed.

Claim Information

Reimbursement for this action is processed via normal claim entry using the applicable work package information. The repair code for this delivery stop is 0051760500, described as "G70 BEV Removing sound insulation from right side of engine compartment." Special flat rate labor operation codes are provided for different scenarios, including removal of sound insulation only or removal and rework of battery cables. Dealers must ensure completion before the first vehicle delivery or if the vehicle is already in the workshop.

What Owners Should Do

If you own a 2023-2024 BMW i7, it is important to ensure this delivery stop, SI B61 32 23, has been completed. Vehicles requiring this campaign will show as "Open" in systems like AIR, AWP, Campaign Summary, or Warranty Vehicle Inquiry. Dealers can check affected vehicles in Inventory Campaign Details (ICD) under ROSS. Contact your authorized BMW dealer to confirm if your vehicle is affected and to schedule the necessary repair.

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Source: NHTSA ID: 10253353