How To Replace the Air Conditioner Cabin Filter on a 2001-2005 Passat

If your A/C system is not blowing cold air properly the filter may be dirty and unable to let air pass through the system.

The cabin air filter keeps out debris from the A/C system and working properly.

To work correctly any air conditioning system must have good air flow to let cold air into a vehicle.

It is easy to replace the filter with minimal skills or tools and falls in the DIY category. Below are the steps to replace the filter with pictures.

A new filter will need to be bought online or at a local parts store.
 
OEM pollen filter part number is 1H0-819-644-B and a common aftermarket number is CF8644A.

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Note: On a 2001-2005 Passat the cabin filter sits under the passenger side cowl in the engine bay, not behind the glove box.

Note: Park the car, shut the engine off, and prop the hood before you start.

How To Replace the Air Conditioner Cabin Filter on a 2001-2005 Volkswagen Passat

1. Open the hood and pull back the weather striping on the passenger side of the cowling.



2. Lift the plastic cover.



3. Pull the clip out from the forward edge of the filter housing.



4. Lift the filter straight up and out and remove it.



Note: Clear leaves and debris out of the filter housing and cowl drains so water can drain.

5. Insert the new filter with the notches facing down.



Note: If the filter has airflow arrows, point the arrows down so air flows down through the filter.

6. Reinstall the clip.



7. Put the plastic cowling back down into position and put the weather striping back into place.