14/08/2026
❄️ Why does my A/C smell bad when I turn it on?
That musty smell is usually caused by moisture, mould, and bacteria building up inside the A/C system — especially on the evaporator and cabin air filter.
Common causes include:
⚠️ Infrequent A/C use
⚠️ Damp buildup inside the system
⚠️ Dirty cabin air filters
💡 Regular A/C use, routine servicing, and replacing the cabin air filter can help keep the system fresh and efficient.
For even cleaner cabin air, upgrade to DENSO ClearAir+ cabin air filters.