When winter rolls in, most drivers forget about their car’s air conditioning system. After all, who needs cold air when it’s freezing outside? The truth is, your AC plays an important role year-round, even in cold weather. Proper maintenance now can keep the system in good shape and ensure it’s ready when warm temperatures return.
Why Run the AC in Winter?
Your AC system does more than cool the cabin—it also removes humidity from the air. Running it occasionally during cold weather helps keep the system lubricated and prevents seals from drying out. It also clears moisture from your windshield and windows, improving visibility on damp or frosty days.
Keep It Clean With a Cabin Air Filter Change
The cabin air filter keeps dust, debris, and allergens from entering your car’s interior. In winter, it can also become clogged from increased use of the heater and defroster. Replacing it ensures proper airflow and keeps your AC system from working harder than necessary.
Watch for Odd Smells or Noises
Even in cold weather, pay attention to how your AC system performs. Musty odors may signal mold or mildew inside the system, while rattling noises can indicate debris in the blower motor or failing components. Addressing these issues early prevents bigger repairs later.
Check Refrigerant Levels
Refrigerant isn’t just for summer cooling—it’s essential for keeping the AC system lubricated year-round. If levels are low, your AC compressor may wear out faster. A professional inspection can identify leaks and ensure refrigerant levels are where they should be.
Run the Defroster Regularly
Your defroster often uses the AC system to clear condensation from the windshield. Make a habit of running it during cold mornings to keep the system active, prevent moisture buildup, and maintain clear visibility.
Schedule Seasonal Service
Even if you don’t notice obvious issues, scheduling a quick AC check during routine maintenance is smart. Technicians can test pressure, check for leaks, inspect belts, and ensure the system will be ready to handle the first hot day of spring.
Final Thoughts
Your car’s air conditioning system isn’t just for summer comfort—it’s a year-round tool that helps with visibility, cabin air quality, and system health. By running it occasionally, changing the cabin filter, and having it checked during the winter months, you’ll extend its lifespan and avoid costly repairs when warm weather returns.