Bosch C3821WS Cabin Air Filter

Overview of Bosch Cabin Filter, Activated Carbon C3821WS

The Bosch Cabin Filter, Activated Carbon C3821WS is designed to improve air quality inside your vehicle by filtering out odors and contaminants. Specifically engineered for BMW models including 525i, 528i, 530i, 540i, and M5, this cabin air filter uses activated charcoal media to provide effective odor removal and maintain a cleaner cabin environment.

• Activated charcoal filter media for enhanced odor control
• OEM standard part ensuring proper fit and function
• Compatible with BMW 525i, 528i, 530i, 540i, and M5 models
• Recommended replacement interval of 12,000 miles
• Includes two filters per package for convenience
• Foam automotive material for durability and performance

Detailed Product Description

The Bosch Cabin Filter, Activated Carbon C3821WS belongs to the Cabin Filter, Activated Carbon product line, which focuses on using activated charcoal media to reduce odors and airborne contaminants inside the vehicle cabin. This filter features a charcoal pre-filter specifically designed for odor removal, making it suitable for drivers seeking improved air quality. The filter dimensions are approximately 7.99 inches in width and 1.18 inches in height, ensuring a precise fit for the specified BMW models. Constructed with foam automotive material, this OEM standard part meets manufacturer specifications for reliable performance and longevity.

Applications and Benefits

• Reduces unpleasant odors inside the cabin
• Filters out dust, pollen, and airborne particles
• Helps maintain a cleaner HVAC system
• Improves overall air quality for driver and passengers
• Prevents buildup of contaminants that can affect HVAC efficiency

Installation Notes and Tips

Installation of the Bosch Cabin Filter, Activated Carbon C3821WS is straightforward and designed to meet OEM standards. It is recommended to replace the cabin air filter every 12,000 miles or as specified in your BMW owner’s manual. When installing, ensure the filter is oriented correctly according to airflow direction markings. Using the correct filter size and type for your BMW 525i, 528i, 530i, 540i, or M5 will help maintain HVAC system performance and cabin air quality.

Quality Assurance and Warranty

Bosch manufactures the C3821WS cabin air filter to meet OEM quality standards, ensuring compatibility and reliable filtration performance. This part is an OEM standard replacement, designed to match the original equipment specifications for your BMW vehicle. While specific warranty details are not provided, Bosch products typically adhere to strict quality control processes to maintain consistent product reliability.