Bosch C3503WS Cabin Air Filter

Overview

Bosch C3503WS is an OEM standard cabin air filter with activated carbon media for cleaner interior air. It is built for the Mazda 6 and uses a multi-layer charcoal design to help reduce odors and airborne contaminants entering the cabin.

Key Features

• Activated charcoal filter media for odor control.
• 5-layer construction with an added carbon layer and protective cover layer.
• OEM standard part for direct replacement service.
• HEPA filter: No.
• Recommended replacement interval: 12,000 miles.

Detailed Description

The Bosch Cabin Filter, Activated Carbon line focuses on layered filtration for everyday cabin air management. This C3503WS cabin air filter uses activated charcoal media to absorb odors and gases such as ozone, nitrogen oxide, sulfur dioxide, and hydrocarbons, while the foam-based construction supports the filter structure. For Mazda 6 owners looking for a cabin air filter replacement, Bosch C3503WS provides a fitment-specific solution for 2003-2008 models.

This part cross-references Bosch C3503 for the same application.

What It Helps Address

• Unwanted cabin odors from outside air.
• Exposure to common gaseous pollutants entering the HVAC intake.
• Reduced cabin air freshness caused by a saturated filter.
• Routine maintenance needs at the recommended service interval.

Installation Notes

Fits 2003-2008 Mazda 6, N/A. Replace the cabin filter at the recommended 12,000-mile interval or sooner if airflow drops or odors return. Verify the filter dimensions and housing style before installation.

Quality Assurance

Bosch cabin filters are engineered with multiple layers of protection and activated carbon filtration for consistent cabin air service.