Tesla Model Y AC Not Cold and Musty Smell Diagnosis
The musty smell and reduced cooling suggest a clogged or dirty cabin air filter and/or evaporator core with mold or mildew growth. This is common in humid climates and can restrict airflow, reducing AC performance.
Diagnosis Details
Possible Causes
Clogged or contaminated cabin air filter restricting airflow and trapping moisture, leading to mold/mildew growth.
Evaporator core drain tube clogged, causing water buildup and musty odors.
Low refrigerant charge due to a small leak, reducing cooling capacity.
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What You Should Do
Replace the cabin air filter (Tesla recommends every 2 years or 20,000 miles).
If smell persists, have a shop clean the evaporator coil and check the drain tube.
If AC still not cold, check refrigerant pressure.
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Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.
