2023-2024 BMW iX Coolant Changeover Valve Leak SIB 64 13 24

BMW has released Service Information Bulletin (SIB) 64 13 24 concerning a potential issue with the coolant changeover valve in certain 2023-2024 BMW iX vehicles. This service action aims to prevent coolant leaks that may occur in very low outside temperatures.

The Issue: Coolant Changeover Valve Leak

Quality checks have identified that the coolant changeover valve in affected 2023-2024 BMW iX models may develop a leak. This issue is particularly prone to occurring in significantly cold temperatures, specifically below 32° F (0° C).

Symptoms of a Leaking Coolant Changeover Valve

Owners of affected vehicles might notice signs of coolant loss. BMW's predictive analytics monitoring system can also detect this condition. If your vehicle shows a campaign status of "Status 00 - Predictive analytics monitoring is active; the Coolant Changeover Valve(s) is leaking and there is coolant loss. This vehicle should have the Coolant Changeover Valve(s) replaced," it indicates a confirmed leak.

Important Information for Owners

BMW advises dealers to check the campaign status of vehicles. For owners, understanding these statuses is key:

• "Status 40 - Predictive analytics monitoring is currently active in the background and the vehicle has not experienced any issues. No action is required at this time." This means your BMW iX coolant changeover valve is being monitored, but no leak has been detected yet.
• "Status 00 - Predictive analytics monitoring is active; the Coolant Changeover Valve(s) is leaking and there is coolant loss. This vehicle should have the Coolant Changeover Valve(s) replaced." This indicates a confirmed issue with the BMW iX coolant changeover valve, and the repair is necessary.

Vehicles requiring this campaign will show an "Open" status in BMW's internal systems (AIR, AWP, Campaign Summary, or Warranty Vehicle Inquiry).

Repair Procedure Summary

The correction for this issue involves replacing both coolant changeover valves. Technicians are instructed to follow specific repair instructions, namely 64 12 790 and 17 61 625, for the replacement process, including the coolant changeover valve 2 for the high-voltage battery.

Required Parts and Materials

To perform the repair, the following parts and materials are specified:

• Part Number 64 11 9 462 114: Changeover valve (Quantity: 2)
• Part Number 07 11 9 906 123: Hexagon screw with washer (Quantity: 2)
• Part Number 31 11 6 899 302: Multi-purpose bolt (Quantity: 14)
• Part Number 61 27 9 487 465: Screw (Quantity: 4)
• Part Number 83 19 5A32851: HT-12 Antifreeze RTU (DN = 1/10 Liter) (Pre-mix) (Quantity: As needed)
• Part Number 83 19 2468442: BMW Antifreeze/Coolant (DN = 1 Gallon Concentrate) - HT-12 (Quantity: As needed)

Additional materials like fluids, lubricants, one-time use screws, nuts, and seals, as per ISTA repair instructions, may also be required.

Warranty and Claim Information

This service action is covered under warranty. Dealers will claim reimbursement using Repair Code 0064340200, titled "I20 Replace coolant changeover valve." Specific labor operation codes are provided for vehicles before first delivery (00 77 669) and those already in service (00 77 117). Only one flat-rate labor operation code can be claimed per workshop visit.

Reimbursement for bulk supply materials, such as antifreeze, is handled via Sublet Code 4, with a maximum allowance of $150.00. The bulletin also notes that this repair qualifies for Alternative Mobility Solution (AMS) expense reimbursement under Sublet Code 2.

NHTSA ID: 11012094