Can dirty o r clogged cabin air filters cause weak o r warm AC in BMW 2 Series?

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Can dirty o r clogged cabin air filters cause weak o r warm AC in BMW 2 Series?

I haven’t changed the cabin air filter in my BMW for over a year. Now the airflow feels weak and not very cold. Can a dirty filter alone cause these symptoms, especially in dusty environments like Karachi o r Faisalabad?

Gari Specialist asked on 13 Jun 2025 12:49:56 pm

1 Answer

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Gari Master - on 13 Jun 2025 12:53:11 pm

Yes. A clogged cabin air filter restricts airflow and can make it seem like the AC isn’t cooling, especially in Pakistan’s dusty environments e.g., Faisalabad, Quetta.

The cabin air filter should be replaced every 15,000 to 20,000 km, o r sooner in dusty areas.

A dirty filter can also lead to a musty smell, foggy windows, and poor defrosting.
Changing the filter is simple and improves AC performance instantly. Use genuine o r OEM-grade filters to maintain proper airflow and filtration.