
AC Not Cold and Bad Smell
The AC system is not producing cold air and emits a foul odor. This is likely due to a refrigerant leak, a failing compressor, or microbial growth in the evaporator.
Diagnosis Details
Possible Causes
Refrigerant leak (low refrigerant level) causing reduced cooling and potential moisture entry leading to mold/bacteria smell.
Clogged or dirty cabin air filter restricting airflow and causing odors.
Faulty AC compressor or expansion valve not circulating refrigerant properly.
Related OBD-II Codes
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What You Should Do
Inspect cabin air filter and replace if dirty.
Check refrigerant pressure and look for leaks.
If low, recharge and seal leak.
If smell persists, clean evaporator with antimicrobial treatment.
For compressor issues, professional diagnosis is needed.
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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.


