2023 BMW i4 and i7 Combined Charging Unit Delivery Stop

Why This Matters: Potential Safety Risks

BMW has identified a critical issue with the Combined Charging Unit (CCU) in certain 2023 BMW i4 and i7 models. This component, vital for the vehicle's high-voltage system, may not have been built to specifications, making it susceptible to moisture ingress. A malfunction of the CCU can lead to serious operational problems, including the "charging process being aborted" or the vehicle becoming "not possible to start the vehicle." In severe cases, the "high-voltage system may fail," causing the "vehicle to coast while driving" and "slowly come to a stop." This presents a significant safety risk, as a sudden loss of power while driving could increase the chance of a crash.

What's Being Addressed

This delivery stop, identified by Service Information Bulletin (SIB) 61 33 23, targets the Combined Charging Unit (CCU) in 2023 BMW i4 Gran Coupe (G26) and i7 Sedan (G70) vehicles produced between February 10, 2023, and June 23, 2023. The issue stems from the CCU potentially not meeting manufacturing specifications, leading to its vulnerability to moisture and subsequent malfunction. This SIB 61 33 23 (Revision 2) supersedes the previous SI B61 33 23 dated January 2024, with updates to parts and claim information.

Symptoms of a BMW i4 i7 CCU Malfunction

Owners of affected vehicles may experience several warning signs indicating a potential BMW i4 i7 CCU malfunction. These include:

• The "charging process being aborted," preventing the vehicle from fully charging.
• The vehicle being "not possible to start the vehicle."
• A "high-voltage system may fail," which can lead to a complete loss of power.
• The "vehicle to coast while driving" and "slowly come to a stop," indicating a critical power train failure.

Important Warnings for Owners and Dealers

BMW has issued a strict "Delivery Stop" for all affected vehicles. This means:

• "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."

Furthermore, any work on the High-Voltage (HV) systems on BMW Group vehicles requires specialized training. Only properly trained personnel who have completed specific HV Technical Training Courses (such as ST1824, ST1825, ST2006, ST2205) should perform repairs involving high-voltage components. Unqualified individuals working on these systems risk severe injury or vehicle damage. Technicians are advised to "Observe safety instructions when handling electric vehicles" as detailed in Repair Instruction 61 00.

Repair Procedure Summary

The correction for a BMW i4 i7 CCU malfunction involves replacing the Combined Charging Unit (CCU). The procedure is outlined in Repair Instruction REP 61 42 501. This repair is both "MOBILE FRIENDLY" and "REMOTE SOFTWARE UPGRADE (RSU) FRIENDLY," indicating flexibility in how it can be performed. After the CCU replacement, the vehicle will undergo programming and encoding to update its control units to the required I-level. This process ensures all vehicle modules are properly configured and any other open programming campaigns are addressed.

Required Tools or Parts

To perform the Combined Charging Unit (CCU) replacement, specific parts are required:

• Combined Charging Unit (CCU): Part Numbers 61 44 5A73E23 or 61 44 5B68313 (Quantity: 1)
• Hexagon Bolt: Part Number 12 90 9884545 (Quantity: 4)
• Antifreeze/Coolant: HT-12 Antifreeze RTU (Bulk 1/10 Liter) Part Number 83 19 5 A32 851, or BMW Antifreeze/Coolant (1 Gallon Concentrate) - HT-12 Part Number 83 19 2 468 442 (Quantity: As needed)

Additional fluids, lubricants, and one-time use fasteners (screws, nuts, seals) should be selected from the Electronic Parts Catalog (ETK/AIR) based on the specific vehicle type.

Owner Action

If you own a 2023 BMW i4 or i7, it is crucial to check if your vehicle is affected by this delivery stop. Vehicles requiring this campaign will show an "Open" status in systems like AIR, AWP, Campaign Summary, or Warranty Vehicle Inquiry. BMW AG issued this delivery stop effective December 19, 2023. Contact your authorized BMW dealer to schedule the necessary repair. The repair, identified by internal repair code 0061250800, will replace the Combined Charging Unit (CCU) and update vehicle software. This service should be performed free of charge under the delivery stop campaign.

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NHTSA ID: 11020915