NHTSA complaint #11741425

Owner complaint summary

For my 2019 BMW X5 SDRIVE40i, The A/C evaporator core failed and began leaking refrigerant, resulting in complete loss of cold air from the A/C system. The vehicle had approximately 50,000 miles. The repair required full dashboard removal and cost approximately 4,500 including a rental vehicle. This appears to be a widespread issue on 2019–2025 BMW X5/X6/X7 models, suspected to be caused by R-1234yf refrigerant incompatibility with the aluminum evaporator core. The leaking R-1234yf refrigerant is also an environmental concern. R-1234yf is a hydrofluorocarbon (HFC) greenhouse gas with a global warming potential significantly higher than CO2. An uncontrolled leak of this refrigerant directly into the atmosphere — due to a defective factory-installed evaporator core — contributes to environmental harm and violates the spirit of EPA regulations governing refrigerant emissions. Consumers should not bear the financial burden of a known manufacturing defect that also results in the uncontrolled release of a regulated substance. BMW has not issued a recall or extended warranty for this component despite widespread owner reports of the same failure. I am requesting NHTSA investigate this issue and compel BMW to issue a formal recall and provide reimbursement to affected owners.