2025 BMW 5/7 Series Cabin Air Filter Fault SIB 64 04 25

BMW has released Service Information Bulletin (SIB) 64 04 25 to address a specific issue affecting 2025 BMW 5 Series (G60, G90, G99) and 7 Series (G70, G73) vehicles. This bulletin, which is Revision 3 and replaces an earlier SI B64 04 25 dated July 2025, details a problem where air flap and/or air temperature sensor faults may occur after a cabin air filter replacement or similar repair involving the removal and installation of the filter's housing cover. This SIB outlines a procedure to modify the wiring harness routing to prevent future damage.

Symptoms

Owners of affected 2025 BMW 5 Series cabin air filter fault vehicles may notice various air flap and temperature sensor issues. These problems typically manifest after a cabin air filter replacement maintenance service. Technicians will find specific diagnostic trouble codes (DTCs) stored in the Body Control Processor (BCP) module. These include:

• 80114D: Stepper motor: Unexpected error in Driving Cycle
• 801168: Temperature sensor ventilation left or ventilation: short to ground
• 80116A: Temperature sensor ventilation right: short to ground
• 80116B: Temperature sensor ventilation right: short to plus or open circuit
• 80116C: Temperature sensor footwell left or footwell: short to ground
• 80116D: Temperature sensor footwell left or footwell: short to plus or open circuit
• 80116E: Temperature sensor footwell right: short to ground
• 80116F: Temperature sensor footwell right: short to plus or open circuit
• 80435B: Stepper motors: short-circuit by mass

Cause of the Problem

The root cause of these faults stems from the wiring harness being pinched or damaged. This occurs when the plastic cover for the cabin air nanofilter is re-installed, particularly when fastening its retaining screws. The harness can get caught, leading to abrasion and electrical issues with the air flap and temperature sensors.

Important Owner Information

BMW is not sending out separate notifications for this specific Service Action. Instead, the procedure outlined in SIB 64 04 25 will be performed on affected vehicles the next time they are in a workshop for a "cabin air filter maintenance service," provided the campaign has a status of remedy available. This means owners should not expect a recall letter for this issue, but the repair will be completed during routine maintenance if their vehicle is identified as affected. If your 2025 BMW 5 Series cabin air filter fault symptoms appear, you should schedule service.

Repair Procedure Summary

The repair involves modifying the routing of the wiring harness and installing a new retention strap. Technicians will follow Repair Instructions REP 64 31 010 for changing the cabin air nanofilter. During this process, they will carefully check the wiring harness routing before securing the plastic cover. A new retainer will be added to the harness to prevent it from being pinched. If the wiring harness has already sustained damage, the affected section must be repaired before the new routing is implemented.

Required Parts

To perform this service action, the following part is required:

• Part Number: 61 13 9 200 225
• Description: Cable Strap with Bracket
• Quantity: 1

Warranty and Claim Information

Reimbursement for this Service Action is available via normal claim entry. The repair code for this action is 0061270900. The labor operation code is 00 78 779 for installing the new cable retainer, with a labor allowance of 1 FRU. This repair is intended to be performed in conjunction with a BMW Maintenance Service Task to Replace Microfilter (Recommended or Due) or any other repair that requires the removal and installation of the cabin air nanofilter's plastic cover.

Source: NHTSA ID: 11021112