Premium Guard Cabin Air Filter PC99857X for VW ID.4 & Audi Q4 e-tron (2021–2025) — 4‑Layer Activated Charcoal, High Airflow

Premium Guard PG Cabin Air Filter PC99857X is a four-layer cabin air filter engineered to trap dust, pollen, odors, and gaseous pollutants for 2021–2025 Volkswagen ID.4 and 2022–2025 Audi Q4 e-tron models.

Replace your vehicle’s cabin filter with the PG PC99857X to restore HVAC airflow while reducing airborne particles and common odors inside the car. Built with multi-stage media including a particulate layer and activated charcoal infused with baking soda, this filter balances filtration efficiency and air flow so the climate system performs without undue strain. It’s a direct-fit aftermarket option designed to match OE fit and function and is backed by a 12 month / 12,000 mile warranty.

How does this filter improve air quality inside my ID.4 or Q4 e-tron?

The PC99857X uses four filtration layers to capture different types of contaminants. A fine particulate layer removes dust and pollen, while activated charcoal and an odor-absorbing infusion reduce smells and some gaseous pollutants. This combination helps keep cabin air fresher and reduces the amount of material circulating through the ventilation system.

• Four-layer media for particles, gases, and odors
• Particulate layer captures dust, pollen and other allergens
• Activated charcoal traps gases like exhaust-related compounds
• Baking soda infusion targets common interior odors

Will this filter affect my car’s airflow or HVAC performance?

Premium Guard designed the PC99857X to balance filtration and air flow so your heating and cooling system can operate efficiently. The media is engineered to capture fine particles without creating excessive resistance, helping maintain proper fan performance and temperature response. A correctly installed filter also helps prevent dust build-up on HVAC components.

• Optimized media for high airflow and particle capture
• Helps maintain HVAC efficiency and reduces clogging
• Direct-fit dimensions reduce installation gaps and leaks

Is this filter compatible with my vehicle and easy to install?

The PC99857X is made to fit 2021–2025 Volkswagen ID.4 and 2022–2025 Audi Q4 e-tron and Q4 e-tron Sportback models. It’s a drop-in replacement for the factory cabin filter, requiring no trimming or modification. Installation typically takes only a few minutes using the vehicle’s glovebox or access panel—no special tools are required.

• Direct replacement for specified VW and Audi model years
• Simple, tool-light installation via factory access points
• Designed to match original shape and sealing surfaces

How long will this cabin air filter last and what warranty is provided?

Premium Guard recommends routine replacement based on driving conditions, but the PC99857X comes with a 12 month / 12,000 mile warranty to cover manufacturing defects. In urban or high-pollution areas you may need to change the filter more frequently; in cleaner environments it may last closer to the upper mileage threshold. Regular inspection every 6–12 months helps you decide the optimal replacement interval.

• 12 month / 12,000 mile limited warranty included
• Replacement frequency depends on local air quality and usage
• Inspect every 6–12 months for best results

Who is this for: Drivers of 2021–2025 Volkswagen ID.4 and 2022–2025 Audi Q4 e-tron / Q4 e-tron Sportback who want a direct-fit cabin filter that improves in-cabin air freshness, reduces dust and pollen, and minimizes odors without compromising HVAC airflow. It’s ideal for commuters, allergy-prone passengers, and anyone seeking a higher-performing aftermarket filter backed by a limited warranty.