# Service bulletins for the 2023 BMW iX

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

94 bulletins from NHTSA, as of 2026-10-19.

- [B611626](/bulletins/11036456.md), 2026-08-28, Service campaign: ELECTRICAL SYSTEM. In vehicles equipped with the Roof Function Center “FZD‑21” variant, a quiescent‑current violation mayoccur if the system fails to enter sleep mode. When this sleep error is present, a remote software upgrade\(RSU\) may be aborted and the FZD can become degraded. The following Check Control Messages \(CCMs\) may be displayed: “Energy Management — Increased Energy Consumption While Parked.” “Software Upgrade Failed — Workshop Visit Required.”
- [B320526](/bulletins/11036379.md), 2026-08-26, Service bulletin: STEERING. “Cracking” noise might be heard when turning the steering wheel from lock to lock. See attached video V3202 26 EPS noise.
- [B120523](/bulletins/11030059.md), 2026-03-13, Service bulletin: POWER TRAIN. The customer states there is a Drivetrain Malfunction message displayed in the instrument cluster. In addition, the following fault memory entries are saved in the CCU \(Combined Charging Unit\) 0317F2 \- High\-voltage system, insulation fault detected: when switch contactors are closed. 0317F1 \- High\-voltage system, insulation resistance below warning threshold: when switch contactors are closed. The fault memory entries \(isolation faults\) can occur both individually and in combination and must be traced back to the eDrive motor based on the ISTA test procedure. If ISTA test procedure lists possible cause of fault as; A metal chip is found behind the brush module \(between the brush module and the end shield of the electrical machine\). Repair required. Refer to service solution no. 20000794435083 in Aftersales Information Research \(AIR\). Follow information in the Procedure section below.
- [B170124](/bulletins/11029046.md), 2026-02-26, Service bulletin: ENGINE. There is coolant leaking from under the car Low heater output Possible Check Control message “Drive, you can continue driving” \(ID49\) Possible fault codes stored in these BEV vehicles: 224163 – Electric auxiliary heater for the high\-voltage battery unit: Undervoltage or internal communication fault 8049AA \- Coolant level sensor, expansion tank: Coolant level low or short circuit to ground or line disconnection 80124F – Electric auxiliary heater: Communication in electric auxiliary heater faulty 224F60 \- Coolant level sensor, expansion tank: Coolant level low or short circuit to ground or line disconnection 224111 \- Cooling system for power electronics: Coolant loss detected 224107 \- Cooling system for high\-voltage battery unit, component protection: Detection of coolant loss
- [InVeh\-InApp\-Comm](/bulletins/11029009.md), 2026-02-25, Over\-the\-air update: POWER TRAIN. A manufacturing defect in a bearing of the electronic drive unit could result in bearing damage. This is caused by an unusual acoustic signal in the area of the drive unit. The bearing could fail completely at a later stage, which will be displayed to you by means of a red Check Control message. In this case, the driver is asked to call BMW Roadside Assistance.
- [B511325](/bulletins/11024207.md), 2025-10-09, Service bulletin: STRUCTURE:BODY. There are two possible situations: When opening either the front and/or rear door, the door window glass does not lower \(short drop\). When closing either the front and/or rear door, the door window glass does not roll up into the seal but rests outsidethe seal.
- [B640825](/bulletins/11022361.md), 2025-09-03, Service campaign: ELECTRICAL SYSTEM. A faulty electric auxiliary heater may have been installed in the certain vehicles. This could result in the failure of the electric auxiliary heater, utilized for the vehicle interior.
- [B510225](/bulletins/11022358.md), 2025-09-03, Service bulletin: STRUCTURE:BODY. While driving on a smooth and/or uneven road, a “clicking” sound is heard from the driver’s footwell area.
- [B840525](/bulletins/11022119.md), 2025-08-24, Service bulletin: ELECTRICAL SYSTEM. SITUATION After the telematics module \(TCB4\) has been replaced, the replacement part control unit is not accepted byISTA.
- [B410425](/bulletins/11019566.md), 2025-06-17, Service bulletin: STRUCTURE:BODY. Water sloshing is heard in the vehicle’s body when accelerating and braking.
- [B660325](/bulletins/11016446.md), 2025-04-03, Service bulletin: STRUCTURE:BODY. A check control message is displayed, indicating that the parking assistance systems have limitedfunctionality due to errors detected within PDC sensors. The warning indicates parking assistance featureshave limited functionality while the errors continue to be detected. Following faults may be stored 8031BA Ultrasonic Sensor Rear Side Left Software Error 8031CO Ultrasonic Sensor Rear outer left Software Error 8031AE Ultrasonic Sensor Rear Outer Right Software Error 8031A8 Ultrasonic Sensor Rear Side Right Software Error 8031B4 Ultrasonic Sensor Rear Middle Right Software Error 8031C6 Ultrasonic Sensor Rear Middle Left Software Error 8031CD Ultrasonic Sensor Voltage Supply Sensors Back: Short Circuit 8031CC Ultrasonic Sensor Voltage Supply Front: Short Circuit 8031CA Ultrasonic Sensors Front Extraneous Noise
- [B170124](/bulletins/11016419.md), 2025-04-03, Service bulletin: ENGINE. There is coolant leaking from under the car Low heater output Possible Check Control message “Drive, you can continue driving” \(ID49\) Possible fault codes stored in these BEV vehicles: 224163 – Electric auxiliary heater for the high\-voltage battery unit: Undervoltage or internal communication fault 8049AA \- Coolant level sensor, expansion tank: Coolant level low or short circuit to ground or line disconnection 80124F – Electric auxiliary heater: Communication in electric auxiliary heater faulty 224F60 \- Coolant level sensor, expansion tank: Coolant level low or short circuit to ground or line disconnection 224111 \- Cooling system for power electronics: Coolant loss detected 224107 \- Cooling system for high\-voltage battery unit, component protection: Detection of coolant loss
- [B610325](/bulletins/11015537.md), 2025-03-11, Service bulletin: ELECTRICAL SYSTEM. This is an informational bulletin regarding Plug \& Charge function complaint diagnosis. Possible customer complaints: Plug \& Charge menu does not appear in the vehicle, function not available Problems with the configuration, for example: Contracts cannot be installed Fault / problems when attempting charging with Plug \& Charge Plug \& Charge contract disappeared Plug \& Charge payment method expired
- [B170124](/bulletins/11014422.md), 2025-02-24, Service bulletin: ENGINE. There is coolant leaking from under the car Low heater output Possible Check Control message “Drive, you can continue driving” \(ID49\) Possible fault codes stored in these BEV vehicles: 224163 – Electric auxiliary heater for the high\-voltage battery unit: Undervoltage or internal communication fault 8049AA \- Coolant level sensor, expansion tank: Coolant level low or short circuit to ground or line disconnection 80124F – Electric auxiliary heater: Communication in electric auxiliary heater faulty 224F60 \- Coolant level sensor, expansion tank: Coolant level low or short circuit to ground or line disconnection 224111 \- Cooling system for power electronics: Coolant loss detected 224107 \- Cooling system for high\-voltage battery unit, component protection: Detection of coolant loss
- [B653324](/bulletins/11012095.md), 2024-12-31, Service campaign: LANE DEPARTURE: ASSIST. Customer may complain that the hands\-free option with SA 5AX – “Highway Assistant” can no longer beactivated.
- [B641324](/bulletins/11012094.md), 2024-12-31, Service campaign: ENGINE. Quality checks have determined that the coolant changeover valve may develop a coolant leak under verylow outside temperatures \(significantly lower than 32º F \(0 C\)\).
- [B320324](/bulletins/11012081.md), 2024-12-31, Service campaign: STEERING. DELIVERY STOP: REPLACE STEERING GEAR – I20
- [B120523](/bulletins/11012080.md), 2024-12-31, Service bulletin: ELECTRICAL SYSTEM. The customer states there is a Drivetrain Malfunction message displayed in the instrument cluster. In addition, the following fault memory entries are saved in the CCU \(Combined Charging Unit\) 0317F2 \- High\-voltage system, insulation fault detected: when switch contactors are closed. 0317F1 \- High\-voltage system, insulation resistance below warning threshold: when switch contactors are closed. The fault memory entries \(isolation faults\) can occur both individually and in combination and must be traced back to the eDrive motor based on the ISTA test procedure. If ISTA test procedure lists possible cause of fault as; A metal chip is found behind the brush module \(between the brush module and the end shield of the electrical machine\). Repair required. Refer to service solution no. 20000794435083 in Aftersales Information Research \(AIR\). Follow information in the Procedure section below.
- [B320324](/bulletins/11008990.md), 2024-10-19, Service campaign: STEERING. A check control \(CC\) message \(‘Steering behavior. Drive moderately. Have it checked by the nearest service partner.’\) will light up and there will be a noticeable reduction in power steering assistance when parking.
- [B612124](/bulletins/11008117.md), 2024-09-29, Service bulletin: ELECTRICAL SYSTEM. The \(CCM\) Check Control message: “811 – Stop carefully. Hood open”, is displayed even though the hood is closed. Fault code 80415B “Engine compartment lid contact switch: Line fault or faulty” is often stored inthe BCP module.
- [B611524](/bulletins/11006738.md), 2024-09-02, Service bulletin: UNKNOWN OR OTHER. While driving over rough surfaces, a rattling noise can be heard in the area of the tailgate.
- [B520224](/bulletins/11006734.md), 2024-09-01, Service bulletin: ELECTRICAL SYSTEM. Customer states they started to receive Check Control messages for the driver’s seat at the end of eachdriving cycle: One or more of the following check control messages \(CCM\) were present at that time: CCM 434 Seat calibration required. CCM 108 Driver restraint system. Eventually multiple restarts after they first noticed the CCM the seat stopped functioning, the air bag warninglamp illuminated in the instrument cluster, and they received a new Check Control message: CCM 97 Restraint system. There are now 6 DTC faults stored: ACSM6 Air Bag module 930D86 \- Function restraint system driver restricted. C95432 \- seat module Driver \(seat memory\), message status backrest locking standardization required. C95434 \- seat module Driver \(seat memory\), message status backrest locking standardizationrecommended. FAS\_I20 Driver's Seat module 8029F5 \- initialization seat: limited seat adjustment due to missing calibration 802A03 \- Functions seat adjustment FAS limited available. 802A05 \- ÜKB: Shut\-off ÜKB because of missing calibration. Also, one or both of the following check control messages \(CCM\) may currently be present: CCM 108 “Driver restraint system” CCM 109 “Passenger restraint system” The seat initialization and memory has been lost. Or Repeat failure of seat initialization after completing the test module via ISTA.
- [B520224](/bulletins/11005450.md), 2024-08-02, Service bulletin: ELECTRICAL SYSTEM. The seat initialization and memory has been lost; Or Repeat failure of seat initialization after completing the test module via ISTA. One or both of the following check control messages \(CCM\) may be present: CCM 108 “Driver restraint system” CCM 109 “Passenger restraint system”
- [B640724](/bulletins/11005237.md), 2024-07-25, Service campaign: ENGINE. Quality checks have determined that the coolant changeover valve may develop a coolant leak under very low outside temperatures \(significantly lower than 32º F \(0 C\)\).
- [B651124](/bulletins/11002658.md), 2024-07-01, Service campaign: ELECTRICAL SYSTEM. Quality improvements and robustness measures are to be implemented on the affected vehicles via thissoftware update. The software update improves functions in the following areas of the vehicle: Bluetooth malfunctions The start\-up phase of the HU has been shortened \(faster start of the operating system\) The number of disconnections from Apple CarPlay have been reduced Vehicle access and the drive\-ready state have been improved The AC charging abort error has been fixed Remote Control Parking without function

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