Guides & Tips
Car Aircon Not Cooling? Care Tips to Keep It Cold
By Richard Cuagdan, Mitsubishi Sales Executive ·
Quick answer: Car aircon not cooling as it used to? Keep your car AC cold and fresh by replacing the cabin filter at PMS, parking in the shade, using recirculation once the cabin cools, running the fan a few minutes before switching off to dry the system, and having the AC checked if it's weak, noisy or smelly.
Sa init ng Pilipinas, ang aircon ay hindi luho, kailangan. Here's how to keep yours cold and fresh, especially in the El Niño heat.
Why AC gets weak or smelly
- A dirty or clogged cabin filter blocks airflow and traps odors
- Moisture in the system can lead to a musty smell
- A dusty condenser at the front of the car cools less efficiently
- Low refrigerant or a worn part, which needs a technician
Daily habits that help
Park in the shade
Or use a sunshade. A cooler cabin means less work for the AC.
Vent first
Open the windows for a minute when the car is very hot, then close them and turn on the AC.
Use recirculation smartly
Once cool, recirculate; switch to fresh air now and then.
Dry the system
Before you arrive, turn off the AC compressor and let the fan run a few minutes to reduce moisture.
Maintenance
- Have the cabin filter checked and replaced at PMS as recommended
- Ask for an AC cleaning if odor persists
- Keep the cabin clean; food crumbs and wet mats add odor
Warning signs to have checked
- Air not cold, or only cold while moving
- Unusual noise when the AC turns on
- Water dripping inside the cabin
- Persistent bad smell after a filter change
Families who ride in the third row should check rear AC reach on a test drive. See my Xpander vs Destinator comparison.
Related reading
- Best Car Color Philippines: Heat, Care and Resale
- Car Wash at Home: Step-by-Step Detailing Guide
- Tire Care Tips: Tire Pressure, Tread and Rotation
Your next step
Check the AC reach for every row on a test drive. See what fits your budget first, then book in SJDM.
Check what fits my budget Book a Test Drive Call or text 0954 291 1201
Questions muna? Call or text me, Richard, on 0954 291 1201, walang pressure. Richard Cuagdan, Mitsubishi SJDM, serving SJDM, Bulacan and Quezon City; message me for showroom visits and directions. Promo figures are for October 2026 on a 5-year term, all-in, subject to bank approval and change without notice.
Frequently asked questions
Why does my car aircon smell?
Moisture and dirt in the system and a clogged cabin filter can cause musty odors. Have the filter replaced and the system cleaned if needed.
Why is my AC not as cold as before?
A clogged filter, a dirty condenser, low refrigerant or a component issue. Have it checked at a service center.
Should I use recirculation mode?
Once the cabin has cooled, recirculation helps keep it cool and blocks outside fumes. Switch to fresh air occasionally to avoid stuffiness and fogging.
Does using the AC use more fuel?
It adds some engine load. Parking in shade and keeping the system clean help it work less.