2022-2024 BMW CBS Data Not Stored in Vehicle Key

Owners of certain 2022-2024 BMW models may experience a problem where the Condition Based Service (CBS) data is not stored in the vehicle key. This means that when a technician uses a Key Reader to retrieve service information, the system reports that "no data is stored". This issue, addressed by BMW Service Information Bulletin SIB 61 27 23, specifically affects the ability to accurately track and retrieve vehicle service data.

Symptoms

The primary symptom of this problem is the Key Reader's inability to retrieve Condition Based Service (CBS) information from the customer's key. When attempting to access this data, the system will indicate that "no data is stored". This directly impacts the vehicle's service history and maintenance tracking.

Important Warnings

BMW notes that "This bulletin is not applicable for vehicles displaying erroneous CBS information!". Owners should be aware that if their vehicle is showing incorrect CBS data rather than simply no data, this particular bulletin does not apply.

Cause of the Issue

The root cause of the BMW CBS data not stored issue has been identified as software errors within the Basic Central Platform (BCP) of the affected vehicles. These errors prevent the CBS information from being properly written to and stored in the vehicle's key.

Repair Procedure Summary

To correct the BMW CBS data not stored problem, technicians must program and encode the vehicle, including the Basic Central Platform (BCP). The procedure outlined in SIB 61 27 23 involves several key steps:

1. Manual Key Update: All available keys must undergo a manual update process, following the guidelines in SI B00 07 06, titled "CBS KEY DATA FROM KEY READER IS NOT UPDATED". This step is particularly important if a spare key has not been used recently, as it ensures all keys have current vehicle data.
2. New Keyread: After the manual update, a new "Keyread" is performed to transfer the updated data.
3. CBS Data Verification: The vehicle's current CBS data is then checked using either the AIR or Key Reader/AWP applications. If the data is now stored, no further diagnosis is needed.
4. I-Level Determination: If the data is still not stored, the vehicle's current integration level (I-level) is determined using the latest ISTA software and test modules.
5. Vehicle Programming: The vehicle is programmed using ISTA 4.45.1x or higher, which was released on December 1, 2023. This programming updates the software to target integration levels such as S18A-23-11-530 or higher for G06, G07, G09 models, G070-23-11-530 or higher for G70, and U006-23-11-530 or higher for U11. ISTA automatically reprograms and codes all programmable control modules that do not have the latest software.
6. Post-Update Key Update: Following the software update, another manual key update is performed for all available keys, again referring to SI B00 07 06.
7. Final Verification: The CBS key data is verified once more using AIR or AWP to confirm that the information is now correctly stored.

Required Tools or Parts

During the programming and encoding process, it is critical to "Always connect a BMW-approved battery charger/power supply (SI B04 23 10)" to maintain stable voltage. BMW explicitly states that "Parts replacement will not provide a solution" for this specific issue, as it is software-related.

Warranty and Claim Information

This repair is covered under the terms of the BMW New Vehicle Limited Warranty or the BMW Certified Pre-Owned Program. The designated Repair Code for this issue is 6138450200, identified as a "Control unit, Basic Central Platform (BCP) Software error / internal device fault".

Technicians will use specific labor operations for claiming, including:

• 00 00 006: Carrying out vehicle test (Main work)
• 00 00 556: Carrying out vehicle test (Plus work)
• 61 21 528: Supporting voltage of the vehicle electrical system / recharging vehicle battery
• 61 00 006
• 00 58 500
• 61 00 730: Program/encode control unit(s), includes deleting the fault memory
• 62 10 000: Checking function of instrument cluster

For additional details on programming and coding with ISTA, technicians should refer to TIS / Technical Documentation / Diagnostics and Programming / Programming Documentation. Further guidance on documenting and claiming diagnosis work time can be found in SI B01 01 20 or B01 07 20.

Source: NHTSA ID 10250742