Mercedes Sprinter Cabin Air Filter – Micronair | VS30 & Metris | #4478300000 (2016–2026)

A clogged cabin air filter on a Mercedes Sprinter restricts airflow through the HVAC system — reducing heat output in winter, cutting A/C cooling in summer, and forcing the blower motor to work harder against the resistance until it wears prematurely. This is the Micronair cabin air filter for VS30 Sprinters and Metris vans, a direct replacement that restores full HVAC airflow and keeps dust, pollen, and airborne particles out of the cabin.

What This Part Does

The cabin air filter sits in the HVAC intake path and filters all air entering the vehicle's interior through the heating, ventilation, and air conditioning system. It captures dust, pollen, mold spores, and fine particulates before they circulate through the cabin — protecting occupants from airborne irritants and keeping the evaporator core and heater core free from debris buildup that reduces heat transfer efficiency. On commercial vans like the Sprinter that accumulate high mileage in varied environments, the cabin filter loads up faster than on passenger cars — especially in urban delivery and construction environments where particulate levels are elevated. A clogged filter reduces blower output, causes musty odors from moisture and debris accumulation on the filter media, and eventually forces air to bypass the filter through gaps as restriction increases.

Common Symptoms of a Clogged Cabin Air Filter

• Reduced airflow from the vents even at high blower speeds
• Musty, stale, or unpleasant odor from the HVAC system when the fan is running
• A/C or heat that takes longer than normal to reach the set temperature
• Visible debris, dust buildup, or discoloration on the filter element at inspection
• Blower motor noise increasing as the motor strains against restricted airflow

When to Replace

Replace every 15,000–20,000 miles or once a year under normal conditions — more frequently in dusty, urban, or high-mileage commercial environments. Also replace any time the HVAC system produces unusual odors or airflow is noticeably reduced. Cabin filter replacement is one of the lowest-cost, highest-impact maintenance items on the Sprinter for driver and passenger comfort.

Fitment

• 2019–2026 Mercedes-Benz Sprinter 1500 – All engines (VS30)
• 2019–2026 Mercedes-Benz Sprinter 2500 – All engines (VS30)
• 2019–2026 Mercedes-Benz Sprinter 3500 – All engines (VS30)
• 2019–2026 Mercedes-Benz Sprinter 3500XD – All engines (VS30)
• 2016–2023 Mercedes-Benz Metris

✔ Always verify by VIN before ordering. Contact us and we'll confirm fitment before you buy.

Part Numbers

• Mercedes OEM: 4478300000 / A4478300000 / 447-830-00-00
• Cross-reference: 9108301100 / 9108301200
• Manufacturer: Micronair — 80005227 / 49495687
• SKU: 4478300000