Cabin Air Filter / Purifier: Service and Repair

Dust and Pollen Filter

• The dust and pollen filter is located in the front passenger footwell.

• Depending on the vehicle equipment level, install the dust and pollen filter with activated charcoal insert. Refer to Electronic Parts Catalog (ETKA).

• Dust and pollen filter with activated charcoal insert, refer to=> [ Dust and Pollen Filter with Activated Charcoal Insert ].

• Replacement interval.

For additional information, refer to => [ Dust and Pollen Filter with Activated Charcoal Insert ].

Removing

- Remove the plastic screws - 2 - and the front passenger side footwell trim panel - 1 -.






- Remove the trim panel from the front passenger side footwell - 1 -.






- Release cover - 1 - in direction of arrow.

- Remove the dust and pollen filter - 2 - from the heater downward - 3 -.

Installing

Install in reverse order of removal.

• Note installation position of dust and pollen filter.

Dust and Pollen Filter with Activated Charcoal Insert

• A dust and pollen filter with additional activated charcoal filter insert is installed together with the air quality sensor (G238).

• The filter with activated charcoal insert continues to work as a dust and pollen filter. It can also filter out gaseous pollutants such as ozone, benzene, nitrogen, etc. from the air coming into the vehicle.

• The activated charcoal is designed to absorb the gaseous pollutants in the air flow until the fresh-air door is closed and the air conditioner is operating in recirculated-air mode. The change over from fresh to recirculating mode occurs via the Climatronic Control Module (J255) , as soon as the air quality sensor detects gaseous pollutants in the ambient air (the "automatic recirculating" mode must be selected).