Electrical SystemSep 17, 2026
MY 2025 · Service Bulletin/Repair Instructions · B611826
Due to unfavorable software, the Storage Management Electronics (SME) will not show fault codes that trigger the Malfunction Indicator Lamp (MIL) when performing ISTA Service Function "Display Permanent SAE Fault Codes." As a result, workshops will have to identify SME-specific permanent SAE (emission related) Diagnostic Trouble Codes (DTCs) stored in the vehicle during diagnosis or when preparing a vehicle for a State Emission Inspection and Maintenance through a workaround procedure.
Electrical SystemApr 9, 2026
MY 2026 · Service Bulletin/Repair Instructions · B610324
Gen 5 BEV/PHEV vehicles may set the Combined Charging Unit (CCU) in programming abort due to no communication to the HV charge socket electronics.
Electrical SystemMar 5, 2026
MY 2025 · Service Bulletin/Repair Instructions · B610326
Several complaints are possible: Vehicle does not start Gear cannot be engaged Various Check Control Messages Malfunction indicator lamp (MIL) on Several Check Control messages are possible: “It is possible to continue driving. High-voltage system.” “You can continue driving. Drivetrain.” “Restart not possible. Drivetrain fault.” “Call Roadside Assistance. Drivetrain failure.” “Information: Total error of vehicle.” The following fault memory entries are stored in the CCU: D796D9 - Message (- 0x91) not up-to-date, receiver CCU, transmitter EME D796DC - No message (- 0x91), receiver CCU, transmitter EME D796D8 - No message (- 0x91), receiver CCU, transmitter EME Other fault codes below may be stored in the EGS BA09B8 – Inverter, Voltage Sensor, 5V HV AUX: Out of range or open connection detected BA0A45 – ECU internal: Internal error of the synchronous serial data bus. Additional fault memory entries are possible. Similar fault memory entries indicating a missing EMEmessage (Traction E-Ma
Electrical SystemMar 4, 2026
MY 2025 · Service Bulletin/Repair Instructions · B611925
The malfunction indicator lamp (MIL) is triggered by the erroneous fault code 031BFC- AC charging,charging electronics 2, internal fault: No internal capacitor discharge stored in the CCU. However, AC charging is operating as designed without a charging concern or issue. Affected PHEV vehicles have the CCU-03 (7.4 kW / 11 kW) with I-levels from …24-07-500 to …25-11-5xx.
Electrical SystemMar 4, 2026
MY 2025 · Service Bulletin/Repair Instructions · B612325
The malfunction indicator lamp (MIL) is triggered and 0318E2 AC charging, charging electronics 1,component protection: Overload current on AC side fault may be stored during AC charging Level 1(120 VAC). Note: Despite the fault memory entry (and the malfunction indicator lamp), the AC charging process willcontinue operating as designed and there is no related drivability complaint. Affected PHEV (plug-in hybrid electric vehicle) vehicles with CCU-03 (7.4 kW combined charging unit).
Electrical SystemMar 3, 2026
MY 2025 · Service Bulletin/Repair Instructions · B612225
Malfunction indicator lamp (MIL) is triggered by the erroneous fault code(s) BA0023 - Control unit: internalfault (software group fault) In addition, the BA0008 - CCU, internal coolant temperature sensor:Signal implausible faults may be stored in the CCU memory. However, AC charging is still operating as designed, without any related drivability complaints. Affected PHEV vehicles have the CCU-03 (7.4 kW / 11 kW) with I-levels from 24-07-500 to 25-11-5xx.
Electrical SystemJan 3, 2026
MY 2025 · Service Bulletin/Repair Instructions · B612325
The malfunction indicator lamp (MIL) is triggered and 0318E2 AC charging, charging electronics 1,component protection: Overload current on AC side fault may be stored during AC charging Level 1(120 VAC). Note: Despite the fault memory entry (and the malfunction indicator lamp), the AC charging process willcontinue operating as designed and there is no related drivability complaint. Affected PHEV (plug-in hybrid electric vehicle) vehicles with CCU-03 (7.4 kW combined charging unit).
Electrical SystemJan 3, 2026
MY 2025 · Service Bulletin/Repair Instructions · B612225
The malfunction indicator lamp (MIL) may be triggered by the erroneous fault code: BA0023 - Control unit: internal fault (software group fault) In addition, the BA0008 - CCU, internal coolant temperature sensor: Signal implausible faults may be stored in the CCU memory. However, AC charging will still operate as designed, without any related drivability complaints. Affected PHEV (plug-in hybrid electric vehicle) vehicles with CCU_P1 (7.4 kW and 11 kW) with I-levels from …24-07- 500 to …25-11-5xx.