2024 BMW X1 / X2 Bluetooth System Not Functioning SIB 65 31 24

When the Bluetooth system in your 2024 BMW X1 or X2 stops functioning, it can prevent you from connecting devices or even activating the Bluetooth feature. This issue, described in BMW Service Information Bulletin (SIB) 65 31 24, points to a software problem within the vehicle's head unit.

This technical service bulletin, SIB 65 31 24, provides a detailed procedure for dealerships to diagnose and correct the problem, ensuring your vehicle's Bluetooth functionality is restored.

Symptoms

Owners of affected 2024 BMW X1 and X2 vehicles may experience the following:

• The Bluetooth system is not functioning.
• It is not possible to establish a connection to any paired devices.
• The Bluetooth function can no longer be activated in the Mobile Device menu.

These symptoms indicate a problem with the head unit's software, preventing proper Bluetooth operation in your 2024 BMW X1.

Fault Codes / DTCs

When this issue occurs, technicians using diagnostic tools will likely find one or both of the following fault memory entries stored in the vehicle's system:

Code	Description
A76319	Bluetooth module: Communication to hardware failed
B7F921	BT/Wi-Fi function is not available

Cause of the Problem

The root cause of the Bluetooth system malfunction is identified as "Unfavorable software in the head unit (HU-H6)." This means the existing software version in the head unit is not operating correctly, leading to the communication failures and inability to activate Bluetooth.

Diagnosis and Repair Procedure

To address the Bluetooth system not functioning, BMW dealerships will follow a specific procedure outlined in SIB 65 31 24. The primary correction involves reprogramming the HU-H6 head unit.

1. I-Level Determination: The technician will first determine the vehicle's current I-Level using BMW's AIR or Key Reader/AWP applications.
2. Fault Memory Readout: Diagnostic software, ISTA, will be used to read out any stored fault memory. If fault codes A76319 or B7F921 are present, the repair proceeds. If no relevant fault memory is found, standard diagnostic procedures are followed.
3. Software Update: If the vehicle's I-Level is lower than U006-24-11-530, the head unit will be programmed to I-Level U006-24-11-530 or a higher version. This programming is performed using ISTA 4.50.3x or newer.
4. Programming Steps: During programming, a BMW-approved battery charger must be connected, and the programming system (ISTA 4) must be connected to the vehicle. The technician will determine and work through a measures plan, follow a rework list, and then perform a vehicle test.
5. Final Check: After programming is complete, the system's functionality will be checked to confirm the Bluetooth system is working correctly and fault memories are deleted.

Important Warnings and Advisories

Owners and technicians should be aware of critical advisories related to this repair:

• Do not program the vehicle if the current I-Level is already at U006-24-11-530 or a more recent version. In such cases, standard diagnosis should be continued.
• Always connect a BMW-approved battery charger/power supply during programming to maintain stable voltage, as detailed in BMW Service Information Bulletin SI B04 23 10.

Warranty Information and Labor Operations

This repair is covered under the BMW New Vehicle Limited Warranty or Certified Pre-Owned Program, provided the conditions are met. The repair code for this service is 6512580200, described as "Headunit High HU-H Software error / internal device fault."

Dealerships will use specific labor operation codes for claiming the repair, including:

• 00 00 006 or 00 00 556 for vehicle test.
• 61 21 528 for supporting voltage/recharging battery.
• 61 00 006* or 00 58 500* for diagnosis work time.
• 61 00 730 for programming and encoding control unit(s) and deleting fault memory.

For detailed information on documenting and claiming diagnosis work time, technicians should refer to BMW Service Information Bulletins SI B01 01 20 or SI B01 07 20.

NHTSA ID: 11009418