Bosch
Cabin Filter, Activated Carbon

Bosch C3806WS Cabin Air Filter

Brand Bosch C3806WS
Activated Carbon Pre-Filter For Odor Removal Yes
Automotive Item Type OEM Standard Part
Automotive Material Foam
Cabin Filter Type Charcoal
Filter Media Material Activated Charcoal
HEPA Filter No
Height 1.141732
Previously cataloged as # C3806
Recommended Replacement Interval 12000 mi
Width 6.456693
Product line Cabin Filter, Activated Carbon
Fits Saab · 11 vehicles

OEM standard part. Built as a direct cabin air filter replacement.

5-layer design. Adds extra coverage for cleaner cabin air.

Activated carbon media. Helps absorb odors and harmful gases.

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Bosch Cabin Filter for Saab 9-3 and 9-3X

Bosch C3806WS is a cabin air filter with activated carbon media for vehicles equipped with the Bosch Cabin Filter, Activated Carbon line. It is built for 2003-2011 Saab 9-3 and 2010-2011 Saab 9-3X applications, with a 5-layer design that adds odor-absorbing carbon and an extra cover layer for added cabin air protection.

Key Features

  • Activated charcoal filter media for cabin air filtration
  • 5-layer construction with an additional carbon layer for odor reduction
  • Captures gases and odors such as ozone, nitrogen oxide, sulfur dioxide, and hydrocarbons
  • OEM standard part for direct replacement service
  • Fits Saab 9-3 and Saab 9-3X applications listed below
  • Previously cataloged as Bosch C3806

Product Details

The Bosch Cabin Filter, Activated Carbon line is built around multi-layer filtration for passenger compartment air quality. Bosch C3806WS uses activated charcoal media and a charcoal cabin filter design to help reduce outside odors and airborne contaminants entering the HVAC system. For Saab 9-3 and Saab 9-3X owners, Bosch C3806WS provides an OE-standard cabin air filter solution for routine HVAC service.

Fits 2003-2011 Saab 9-3, N/A. Fits 2010-2011 Saab 9-3X, N/A. This part cross-references Bosch C3806 for the same application.

What It Helps Address

  • Unpleasant odors entering the cabin through the HVAC system
  • Reduced cabin air freshness during normal driving
  • Dust and airborne debris passing through the ventilation intake
  • Service intervals that call for cabin filter replacement
  • HVAC airflow restriction caused by a loaded filter

Installation Notes and Tips

Replace the cabin air filter at the recommended 12,000-mile interval or sooner if airflow drops or odors increase. Confirm the vehicle application before installation on Saab 9-3 and Saab 9-3X models, and follow the vehicle service procedure for the cabin filter location.

Quality Assurance

Bosch designs this cabin filter as an OEM standard part with a multi-layer activated carbon construction for consistent HVAC filtration performance.

This part fits 11 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypePositionNotes
2011Saab9-3N/ACabin Filter, Activated Carbon
2011Saab9-3XN/ACabin Filter, Activated Carbon
2010Saab9-3N/ACabin Filter, Activated Carbon
2010Saab9-3XN/ACabin Filter, Activated Carbon
2009Saab9-3N/ACabin Filter, Activated Carbon
2008Saab9-3N/ACabin Filter, Activated Carbon
2007Saab9-3N/ACabin Filter, Activated Carbon
2006Saab9-3N/ACabin Filter, Activated Carbon
2005Saab9-3N/ACabin Filter, Activated Carbon
2004Saab9-3N/ACabin Filter, Activated Carbon
2003Saab9-3SedanN/ACabin Filter, Activated Carbon