2023 BMW X5 Inverter Supply Line Service Action SIB 61 09 24

BMW has released Service Information Bulletin SIB 61 09 24, Revision 1, dated May 9, 2024, to address a potential issue with the inverter supply line in certain 2023 BMW X5 Sports Activity Vehicles. This bulletin supersedes the previous SI B61 09 24 issued in March 2023, with updates to parts information, specifically the quantity of multi-purpose bolts.

This service action targets the 2023 BMW X5 PHEV model, produced between February 23, 2023, and May 15, 2023. The primary concern is the potential for the inverter or EGS-EME (Electrical Machine Electronics Transmission Control) supply line to become damaged due to improper routing.

Symptoms Owners May Experience

Owners of affected 2023 BMW X5 vehicles may notice specific warnings or changes in vehicle behavior. The improper routing of the inverter supply line can lead to "Check Control Message (CCM) warnings" appearing on the dashboard. In more severe cases, the vehicle may slowly coast to a stop during purely electric driving, indicating a loss of power to the electric drive system.

The Underlying Cause

The root cause of these symptoms is identified as the routing of the EGS-EME Electrical Machine Electronics Transmission Control supply line. Improper positioning can lead to the supply line being damaged, potentially by sharp edges of the High Voltage (HV) cable support bracket, which then compromises its function.

Important Warnings for Technicians

When performing this service action, technicians are advised to exercise extreme caution due to the presence of high-voltage cables. The bulletin explicitly states: "CAUTION: high-voltage cable! When opening and closing the cable straps, be sure to observe repair 'Notes for opening and closing cable ties REH-HIN-P-6125-5 - V.10'." This emphasizes the critical safety procedures required when working near these components.

Repair Procedure Summary

The repair outlined in SIB 61 09 24 involves a multi-step process to inspect and, if necessary, rework the 2023 BMW X5 inverter supply line. The procedure begins with removing the rear underbody protection and the stiffening plate to access the affected area. Technicians then visually inspect the inverter supply line for any damage. If damage is found on the low voltage (LV) supply lines, repairs are performed according to specific guidelines for handling wiring harnesses.

Following any necessary repairs, the harness is covered with abrasion-resistant fabric adhesive tape. The procedure then focuses on ensuring the EGS-EME harness is properly routed and secured. This involves checking if the harness is correctly positioned on the (B) side of the HV cable support bracket. If not, existing cable ties are removed, the harness is repositioned to the correct side, and secured with new cable ties. Finally, the stiffening plate and rear underbody protection are reinstalled.

Required Parts and Materials

To perform the inspection and rework of the 2023 BMW X5 inverter supply line, several specific parts may be required, depending on the extent of the repair:

• 07 14 6 886 617: Multi-purpose bolt ASA (Quantity: 10)
• 61 13 8 353 747: Crimp connector (when required) (Quantity: 2)
• 61 13 5 A4F 528: Shrink-fit sleeve (when required) (Quantity: 2)
• 61 13 1 372 391: Cable tie (when required) (Quantity: 3)

Additionally, fabric adhesive tape (part number 61 13 6925452) is required and should be invoiced proportionally under Sublet Code 4.

Owner Action

Owners of 2023 BMW X5 PHEV vehicles who experience "Check Control Message (CCM) warnings" or notice their vehicle slowly coasting to a stop during electric driving should contact their authorized BMW dealer. The dealer can check if their vehicle is part of this service action, which will be indicated as "Open" in BMW's internal systems. This repair, identified by Repair Code 0061330800, is eligible for Mobile Assistance in some cases, offering convenience for owners.

Vehicles that require this campaign to be completed will have the service performed free of charge under warranty. It is recommended to schedule an appointment promptly to address the 2023 BMW X5 inverter supply line issue.

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Source: NHTSA ID: 11000508