2023-2024 BMW Seat Memory Loss SIB 52 02 24

Symptoms of Seat Memory Loss

Owners of affected 2023-2024 BMW vehicles, specifically models like the G60 i5 Sedan, G70 i7 Sedan, i20 iX Sports Activity Vehicle, U10 X2 Sports Activity Coupe, and U11 X1 Sports Activity Vehicle produced up to November 2023, may experience a loss of seat initialization and memory settings. This issue often affects vehicles equipped with specific options such as "459 Power Front Seats with memory", "45A Driver's seat adjustment electrical with memory", and "711 M Sports seats for driver and front passenger".

The problem can manifest as a complete loss of seat memory or a "repeat failure of seat initialization after completing the test module via ISTA". In conjunction with the "BMW i5 seat memory loss", one or both of the following check control messages (CCM) may appear on the vehicle's display:

• "CCM 108 'Driver restraint system'"
• "CCM 109 'Passenger restraint system'"

Root Cause

BMW has identified two primary causes for the seat initialization and memory loss. The first is "unfavorable software in the Basic Central Platform BCP control module". This indicates a software defect within a core control unit of the vehicle. The second potential cause is an "error in the seat standardization test module in ISTA", suggesting a diagnostic or programming tool-related issue that prevents proper seat configuration.

Repair Procedure Summary

To correct the "BMW i5 seat memory loss" and associated restraint system warnings, a software update is required. This Service Information Bulletin (SIB) 52 02 24 outlines the following procedure for technicians:

1. Determine Current Integration Level (I-level): Technicians must first ascertain the vehicle's current software integration level. This can be done using either the AIR or ISPA Next/AWP (Aftersales Workplace) applications.
2. Check Target Integration Level: The current I-level is then compared against specific target integration levels for different models:
   • For G60 i5 and G70 i7 models, the target is G070-23-11-500.
   • For i20 iX models, the target is I020-23-11-500.
   • For U10 X2 and U11 X1 models, the target is U006-23-11-500.
3. Software Programming: If the vehicle's current I-level is lower than the specified target, the vehicle must be programmed using ISTA version 4.44.2 (released November 2023) or a higher version. For G60 and G70 models, the target integration level after programming should be G070-23-11-500 or higher. This programming process ensures all programmable control modules receive the latest software.
4. Functionality Check: After the programming is fully completed, the functionality of the seat memory and restraint systems must be thoroughly checked to confirm the issue is resolved.

Required Tools and Software

This repair primarily involves software updates and diagnostic tools. Technicians will need:

• ISTA 4.44.2 (released November 2023) or a newer version for vehicle programming.
• AIR or ISPA Next/AWP applications to determine the vehicle's current integration level.
• A BMW-approved battery charger/power supply (as referenced in SI B04 23 10) must always be connected during programming to maintain stable voltage.

Important Warnings for Owners and Technicians

• Mobile Friendly Repair: This repair is designated as "THIS REPAIR IS MOBILE FRIENDLY", indicating it can be performed outside of a traditional service bay.
• Consequential Repairs: If one or more control modules fail during the reprogramming procedure, additional consequential repair work may be required. These repairs should be claimed under the specified repair code and labor operations, with proper documentation as outlined in SI B01 01 20 or B01 07 20.
• Additional Work: Technicians must also perform any additional before and/or after work, including attaching labels, as required by any other open campaigns on the vehicle.

Claim and Warranty Information

This Service Information Bulletin (SIB) 52 02 24 (Revision 1) replaces SI B52 02 24 dated March 2024 and details the specific procedures for claiming this repair. The primary repair code for this issue is 6135691400, described as "Seat module / seat control unit (incl. holder) Occasional malfunction".

The following labor operations are provided for obtaining flat rate unit (FRU) allowances:

• 00 00 006: Carrying out vehicle test (Main work)
• 00 00 556: Carrying out vehicle test (Plusposition work) (Used if 00 00 006 is part of another repair)
• 61 21 528: Supporting voltage of the vehicle electrical system / recharging vehicle battery
• 61 00 006*: Carrying out vehicle diagnosis, ABL (Work time)
• 00 58 500*: Diagnosis Worktime Flat Rate (2 FRU)
• 61 00 730: Program/encode control unit(s), includes deleting the fault memory

The BMW software solution for this issue is covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks, or the BMW Certified Pre-Owned Program, provided the vehicle qualifies.

---

Source: NHTSA SIB 52 02 24