How to Replace a Cabin Filter in a W220 Mercedes

Written by michael ryan
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How to Replace a Cabin Filter in a W220 Mercedes
Replacing your W220 cabin filters allows the interior air to stay clean. (filtre à air image by Philippe BERNARD from Fotolia.com)

You need to replace the cabin filters on your W220 Mercedes to ensure the air used by the heating and air conditioning system remains clean. If your W220 S-Class has clogged or dirty cabin filters, you may notice a smell in the interior of your car. The W220 has a total of four cabin filters: two charcoal filters and two pollen filters. The frequency with which the filters require replacement varies based on driving conditions, road conditions and how often you use the heating and air conditioning.

Skill level:
Moderately Challenging

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Things you need

  • Screwdriver
  • 2 W220 replacement charcoal filters
  • 2 W220 replacement pollen filters

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Instructions

    Charcoal Filters

  1. 1

    Unclip the foot area lights from the filter cover, located in the passenger footwell between the glovebox and the dashboard. Use a screwdriver to remove the screws from the filter cover. Once the screws and lights are removed, pull the cover downward out of the footwell.

  2. 2

    Push the floor lining out of the way. The floor lining is underneath the cover you removed in Step 1. This provides access to the cabin filters.

  3. 3

    Unlock the filters. A locking slide holds the cabin filters in place. Push it to slide the lock toward the "Unlock" arrow.

  4. 4

    Pull the filters out of the housing. To remove both charcoal filters, simply pull them downward toward the floor of the car.

  5. 5

    Replace the filters. Align the new filters so that they fit in the same direction as the ones you removed in Step 4. Push them upward into the housing.

  6. 6

    Reassemble the filter housing. Slide the filter lock toward the "Lock" arrow. Replace the floor lining. Screw the filter cover back on and clip the foot area lights back into place.

    Pollen Filters

  1. 1

    Remove the glove compartment. Open the glove compartment and use a screwdriver to unscrew the lining. Pull it out of its enclosure by using one straight backward movement.

  2. 2

    Release the locking slide. The cabin pollen filter is also held in place by a locking slide, which you simply push upward to unlock. After the locking slide is released, unclip the pollen filter cover from the air conditioner housing, which is located underneath the plastic enclosure for the filter.

  3. 3

    Remove the pollen filters. The pollen filters also use two separate paper elements that must be replaced simultaneously.

  4. 4

    Insert the new filters. The two filters must slide in horizontally, just as the ones removed above. If the filters are not pushed in all the way, you will have difficulty reassembling the glovebox.

  5. 5

    Reassemble the glovebox. Clip the pollen filter cover back onto the air conditioner housing. Push the locking slide back to the locked position. Push the glovebox back into place and reattach the lining with the screwdriver.

Tips and warnings

  • The W220 Mercedes cabin filters cannot be washed and reused. They are designed to be replaced.

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