2024 BMW X5 X6 X7 PCU Delivery Stop

BMW has released Service Information Bulletin SIB 61 02 25, a delivery stop, for specific 2024 BMW X5, X6, and X7 models. This bulletin, which supersedes SI B61 02 25 dated March 2025, addresses a critical issue with the 12V Power Control Unit (PCU) that affects vehicle functionality and safety.

Important Warnings

BMW has issued a strict advisory regarding affected vehicles:

• "Do not deliver to a customer, a New, Certified Pre-Owned or Used vehicle subject to a Delivery Stop, until the vehicle is repaired."
• "Do not use or sell replacement equipment/parts subject to a Delivery Stop."

This means that any new or used vehicle impacted by this delivery stop cannot be sold or delivered to customers until the necessary repair has been completed.

Symptoms and Potential Issues

The core problem identified in SIB 61 02 25 is an unfavorable tolerance within the 12V PCU module. This can cause the PCU to switch off under heavy electrical loads, preventing it from properly charging the Lithium-Ion (Li-Ion) Auxiliary (AUX) battery.

When the AUX battery is not charged, owners may experience:

• "failure of the roll stabilization"
• "loss of communication to the EARS modules (S 0421 & S 0422)"

These issues can impact vehicle stability and the functionality of critical electronic systems.

Repair Procedure Summary

The correction for this BMW X5 PCU delivery stop involves replacing the 12V Power Control Unit and inspecting the auxiliary battery. The repair process includes several key steps:

1. PCU Replacement: The technician will replace the PCU following specific repair instructions titled "Removing and installing the voltage transformer/Power Control Unit (PCU) 61 42 050 | REP-REP-P-6142050-G07".
2. Vehicle Programming: After the new PCU is installed, the vehicle must be programmed using the latest ISTA software. This involves connecting a BMW-approved battery charger/power supply (as per SI B04 23 10) and working through the measures plan to program and encode all relevant control units.
3. Auxiliary Battery Evaluation: The Li-Ion AUX battery will be evaluated using the ISTA test module "ABL-DIT-AT6121_DSSLTO_EARS". This test determines if the battery can be recovered or if it is defective.
4. Auxiliary Battery Replacement (If Needed): If the AUX battery is found to be defective, it will be replaced according to repair instructions "Replacing 12-V lithium-ion auxiliary battery - registering with battery replacement - 61 21 086 | REP-REP-P-6121086-G07_EMARS - V.4".
5. Fault Code Deletion and Sleep Cycle: After all replacements and programming, fault codes are deleted, and a sleep cycle is performed to ensure new battery characteristics are saved.

Required Tools or Parts

Technicians will require the following parts for this repair:

• Power Control Unit PCU control unit: Part number 61 42 5 B62 A38.
• 12V lithium-ion auxiliary battery: Part number 61 21 5 B3F 328 (only if inspection determines replacement is necessary).

Additionally, a BMW-approved battery charger/power supply (referenced in SI B04 23 10) and the ISTA diagnostic system are essential for performing the programming and diagnostic steps.

Important Note for Dealers

The exchanged PCU should not be discarded. It is required for analysis purposes. Dealers must store the removed PCU as a special damage part and return it for analysis once a claim return request is received.

Owner Action

If you own a 2024 BMW X5, X6, or X7, especially if it falls within the production dates of April 16, 2024, and September 3, 2024, and you have not yet taken delivery, your vehicle may be subject to this delivery stop. If you experience any issues related to roll stabilization or electronic module communication, contact your authorized BMW dealer immediately. The repair for this BMW X5 PCU delivery stop will be performed by your dealer.

NHTSA ID: 11017283