How Do I Know If My Pollen Filter Needs Replacing?

Not feeling the wind through your hair? Hearing an odd whistle from the dash? Or just smell something foul in the air? These are all signs that your pollen filter could be clogged and out of commission.

The pollen filter’s main job is to stop the dirty air from entering the cabin. The filter traps dust, pollen, and other foreign particles, essentially cleaning the air before you breathe it in. Like all filters, they need replacement or cleaning when they become clogged or start to smell. Usually, the replacements will be covered by your service schedule which is recommended by your manufacturer. These scheduled services are important to the maintenance of your car, and will prolong the life by many years. There are multiple signs of a pollen filter that just isn’t working anymore, here are a few now.

Poor air flow

The most common issue with pollen filters is poor air flow, as more and more debris clumps together to block the filter. This will obviously mean that you don’t actually feel much, despite you speeding down the motorway. Opening a window hurts your MPG so this small breeze is a bit more of an issue.

A bad smell?

Another symptom of a blocked up pollen filter is a foul smelling breeze. As dust builds, so does bacteria and fungus. These microorganisms will release a lot of pungent smells that no scented pine will ever protect you from. You might not notice it if you drive often, but newcomers to the car may just plug their nose as they struggle to breathe the ‘clean’ air.

Is that a WRRRR CRCH CRCH SSSSS sound I hear?

If there is some blockage, you may hear odd noises or just a loud low tone sound. This might alarm your passengers, if you can even hear them over the sound of air being squeezed into your car. It definitely puts a slight dampener on any relaxing drive.

Particularly in the city, it is important to have a functioning pollen filter as there are plenty more pollutants in the air which you need to avoid. In urban environments, you may want to get your filters replaced more regularly due to the stop start nature and heavy traffic. We recommend sticking to your scheduled servicing per your manufacturer’s guidelines, as this will keep the filters and the rest of the car in prime condition.

If you think there is a problem with your pollen filter then get a certified Clickmechanic to come out and inspect the problem with your air flow system.