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Part #: C3859WS

Bosch C3859WS Cabin Air Filter

Cabin Filter, Activated Carbon
⚙️ 26 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Cabin Filter, Activated Carbon
🚗Fitment: Cadillac, CTS, SRX, and STS
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Bosch Cabin Filter C3859WS for Cadillac Vehicles

The Bosch Cabin Filter, Activated Carbon (part number C3859WS) is designed specifically for Cadillac CTS, SRX, and STS models. This OEM standard cabin air filter uses activated charcoal media to effectively reduce odors and improve air quality inside your vehicle.

  • Activated charcoal filter media for enhanced odor removal
  • Compatible with Cadillac CTS, SRX, and STS models
  • OEM standard part ensuring proper fit and function
  • Recommended replacement interval of 12,000 miles
  • Foam automotive material for durability and filtration efficiency

Details on Bosch Cabin Filter, Activated Carbon Product Line

The Bosch Cabin Filter, Activated Carbon line focuses on providing cabin air filters that incorporate activated charcoal pre-filters to reduce unpleasant odors and contaminants. The C3859WS is part of this line, offering a charcoal-based filtration system that targets airborne particles and odors, maintaining a cleaner and more comfortable cabin environment for Cadillac vehicles.

Product Features and Specifications

The Bosch C3859WS cabin air filter measures approximately 9.25 inches in width and 0.94 inches in height, fitting precisely into the HVAC system of compatible Cadillac models. Its activated carbon pre-filter is specifically designed to capture and neutralize odors, while the foam material supports effective filtration without restricting airflow. This cabin filter is an OEM standard part, ensuring it meets factory specifications for performance and durability.

Applications and Problem Solving

  • Reduces unpleasant odors inside Cadillac CTS, SRX, and STS cabins
  • Filters out dust, pollen, and airborne contaminants
  • Helps maintain HVAC system efficiency by preventing debris buildup
  • Improves air quality for passengers with allergies or sensitivities
  • Supports a cleaner and more comfortable driving environment

Installation Notes and Tips

When replacing the Bosch C3859WS cabin air filter, ensure the vehicle is turned off and the HVAC system is not running. Locate the cabin filter housing, typically behind the glove box or under the dashboard, depending on the Cadillac model. Remove the old filter carefully to avoid releasing trapped dust and debris. Install the new filter with the airflow direction indicated on the filter aligned correctly. Replace the filter every 12,000 miles or as recommended in the vehicle’s maintenance schedule.

Quality Assurance and Warranty

As an OEM standard part, the Bosch C3859WS cabin air filter meets strict quality and performance standards. Bosch is a recognized brand in automotive filtration, ensuring reliable fitment and filtration efficiency. While specific warranty details are not provided, Bosch products typically come with manufacturer-backed quality assurance to support long-term use in Cadillac CTS, SRX, and STS vehicles.

BrandBosch
Part NumberC3859WS
PositionCabin Filter, Activated Carbon
Filter Media MaterialActivated charcoal
Width9.251969
Height.944882
Activated Carbon Pre-Filter For Odor RemovalYes
Automotive Item TypeOem standard part
Automotive MaterialFoam
Cabin Filter TypeCharcoal
Cases Per Pallet (ORLY)75
Filter Quantity1
HEPA FilterNo
Previously cataloged as #C3859
Recommended Replacement Interval12000 mi
Unit(s) per Car Qty (ORLY)1

This part fits 26 vehicles. Search below:

YearMakeModelSubmodelBody TypePositionNotes
2015CadillacCTSCoupeN/AOld Body Style; Cabin Filter, Activated Carbon
2014CadillacCTSCoupeN/AOld Body Style; Cabin Filter, Activated Carbon
2014CadillacCTSLuxurySedanN/AOld Body Style; Cabin Filter, Activated Carbon
2014CadillacCTSWagonN/AOld Body Style; Cabin Filter, Activated Carbon
2014CadillacCTSVSedanN/AOld Body Style; Cabin Filter, Activated Carbon
2013CadillacCTSN/ACabin Filter, Activated Carbon
2012CadillacCTSN/ACabin Filter, Activated Carbon
2011CadillacCTSN/ACabin Filter, Activated Carbon
2011CadillacSTSN/ACabin Filter, Activated Carbon
2010CadillacCTSN/ACabin Filter, Activated Carbon
2010CadillacSTSN/ACabin Filter, Activated Carbon
2009CadillacCTSN/ACabin Filter, Activated Carbon
2009CadillacSRXN/ACabin Filter, Activated Carbon
2009CadillacSTSN/ACabin Filter, Activated Carbon
2008CadillacCTSN/ACabin Filter, Activated Carbon
2008CadillacSTSN/ACabin Filter, Activated Carbon
2007CadillacCTSN/ACabin Filter, Activated Carbon
2007CadillacSRXN/ACabin Filter, Activated Carbon
2007CadillacSTSN/ACabin Filter, Activated Carbon
2006CadillacCTSN/ACabin Filter, Activated Carbon
2006CadillacSRXN/ACabin Filter, Activated Carbon
2005CadillacCTSN/ACabin Filter, Activated Carbon
2005CadillacSRXN/ACabin Filter, Activated Carbon
2004CadillacCTSN/ACabin Filter, Activated Carbon
2004CadillacSRXN/ACabin Filter, Activated Carbon
2003CadillacCTSN/ACabin Filter, Activated Carbon

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.