2023-2024 BMW 530i Coolant Pump Fault 224123

BMW has issued Service Information Bulletin (SIB) 17 02 24 to address a specific issue affecting 2023-2024 BMW 530i vehicles. This bulletin details a fault code, 224123, which indicates a blockage in the auxiliary coolant pump for the low-temperature cooling circuit. This condition is often detected during the Pre-Delivery Inspection (PDI) process.

Symptoms

Owners of affected 2023-2024 BMW 530i vehicles may not notice any direct symptoms during normal operation, as this issue is primarily identified through diagnostic checks. The primary symptom is the presence of a specific fault code stored in the Digital Motor Electronics (DME) control unit. The exact fault message is: "Coolant pump for low-temperature cooling circuit, internal test: Blockage detected."

Fault Codes / DTCs

This Service Information Bulletin specifically addresses the following fault code:

Code	Description
224123	Coolant pump for low-temperature cooling circuit, internal test: Blockage detected

Diagnosis / Trigger Conditions

The root cause of this issue is typically a blockage within the electric auxiliary coolant pump. This blockage can occur in G60 vehicles that have been stationary for extended periods. The blockage might be temporary or permanent.

BMW technicians will identify this condition when the fault code 224123 is stored in the DME during the pre-delivery inspection (PDI), also known as Quality Certification 1 (QC1).

Repair Procedure Summary

The repair for the BMW 530i coolant pump fault begins with clearing any existing fault memory. Following this, a start-up test of the coolant pump is performed to verify its correct function. Technicians will use the ISTA diagnostic system and navigate to the following path:

• Vehicle Management/Troubleshooting/Function Structure:
  • Powertrain
    • Petrol engine
      • Engine cooling
        • Coolant pump 5
          • ABL Coolant pump 5

The coolant pump test must be performed for at least one minute. After the test, the fault memory is read again. If fault code 224123 is no longer stored, the blockage was temporary, and no further diagnosis or repair is needed. However, if the fault code 224123 is stored again, it indicates a persistent blockage, and the electric auxiliary coolant pump must be replaced.

Required Tools or Parts

If the electric auxiliary coolant pump requires replacement, specific parts and materials are necessary. The primary part is the auxiliary water pump. Additionally, antifreeze/coolant will be needed to replenish the system.

• Part Number: 11 51 9 455 023

  • Description: Auxiliary water pump
  • Quantity: 1 (if required)

• Sublet Materials (Antifreeze/Coolant):

  • Part Number: 83 19 5A32851
    • Description: HT-12 Antifreeze RTU (bulk 1/10 Liter) (Pre-mix)
  • Part Number: 83 19 2468442
    • Description: BMW Antifreeze/Coolant (1 gallon concentrate) - HT-12

Technicians will use the VIN/chassis number in ETK or AIR to determine the exact part number(s) for the specific vehicle's equipment and options.

Important Warnings

BMW has designated this repair as "THIS REPAIR IS MOBILE FRIENDLY." This indicates that the procedure is designed to be accessible and manageable for service technicians.

This repair 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.

Owner Action

If you own a 2023-2024 BMW 530i and suspect an issue related to your auxiliary coolant pump, or if your vehicle's diagnostic system indicates a fault, it is recommended to contact an authorized BMW service center. Provide them with your vehicle's details and mention BMW SIB 17 02 24, which addresses the BMW 530i coolant pump fault. The repair code for this specific service is 1761009900.

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NHTSA ID: 10252134