{"product_id":"premium-guard-cabin-air-filter-pc99857x-for-vw-id-4-audi-q4-e-tron-2021-2025-4-layer-activated-charcoal-high-airflow","title":"Premium Guard Cabin Air Filter PC99857X for VW ID.4 \u0026 Audi Q4 e-tron (2021–2025) — 4‑Layer Activated Charcoal, High Airflow","description":"\u003cp\u003e\u003cstrong\u003ePremium 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.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eReplace 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.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this filter improve air quality inside my ID.4 or Q4 e-tron?\u003c\/h3\u003e\n\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFour-layer media for particles, gases, and odors\u003c\/li\u003e\n  \u003cli\u003eParticulate layer captures dust, pollen and other allergens\u003c\/li\u003e\n  \u003cli\u003eActivated charcoal traps gases like exhaust-related compounds\u003c\/li\u003e\n  \u003cli\u003eBaking soda infusion targets common interior odors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this filter affect my car’s airflow or HVAC performance?\u003c\/h3\u003e\n\n\u003cp\u003ePremium 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.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eOptimized media for high airflow and particle capture\u003c\/li\u003e\n  \u003cli\u003eHelps maintain HVAC efficiency and reduces clogging\u003c\/li\u003e\n  \u003cli\u003eDirect-fit dimensions reduce installation gaps and leaks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this filter compatible with my vehicle and easy to install?\u003c\/h3\u003e\n\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for specified VW and Audi model years\u003c\/li\u003e\n  \u003cli\u003eSimple, tool-light installation via factory access points\u003c\/li\u003e\n  \u003cli\u003eDesigned to match original shape and sealing surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long will this cabin air filter last and what warranty is provided?\u003c\/h3\u003e\n\n\u003cp\u003ePremium 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.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e12 month \/ 12,000 mile limited warranty included\u003c\/li\u003e\n  \u003cli\u003eReplacement frequency depends on local air quality and usage\u003c\/li\u003e\n  \u003cli\u003eInspect every 6–12 months for best results\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho 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.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which models does this filter fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits 2021–2025 Volkswagen ID.4 and 2022–2025 Audi Q4 e-tron and Q4 e-tron Sportback models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace it?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace roughly every 12,000 miles or 12 months; check sooner in polluted or dusty environments.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Premium Guard","offers":[{"title":"Default Title","offer_id":48084385398942,"sku":"B004HOYXF8","price":34.79,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/premium-guard-pc99857x-front-packaging.jpg?v=1785852924","url":"https:\/\/northtrailauto.ca\/products\/premium-guard-cabin-air-filter-pc99857x-for-vw-id-4-audi-q4-e-tron-2021-2025-4-layer-activated-charcoal-high-airflow","provider":"North Trail Auto","version":"1.0","type":"link"}