How often should I clean and re-oil my K&N air filter?

The cleaning interval depends on your driving conditions. K&N recommends inspecting the filter regularly and cleaning it when you see a buildup of dirt and debris. In normal conditions, this might be every 25,000 to 50,000 miles.

What is the warranty on this K&N air filter?

This filter is backed by K&N's No-Hassle Lifetime Limited Warranty. This means K&N stands behind the filter for the life of your vehicle, provided it's properly maintained and used under normal conditions. Refer to the manufacturer's website for full details.

Do I need to purchase a special cleaning kit for this filter?

Yes, you'll need a K&N filter cleaning kit to properly service this air filter. The kit includes both a cleaner and oil specifically formulated for K&N filters. Using other products can damage the filter media.

K&N 2021 Mercedes Benz A45 AMG L4 2.0L Turbo Drop In Air Filter

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K&N Engineering

K&N 2021 Mercedes Benz A45 AMG L4 2.0L Turbo Drop In Air Filter

Name: K&N 2021 Mercedes Benz A45 AMG L4 2.0L Turbo Drop In Air Filter
Brand: K&N Engineering
Price: 83.99 USD
Availability: InStock

$83.99

Washable and reusable air filter. Drop-in replacement for your factory air box.

Key Features

Washable — clean and re-oil for extended use.
Reusable — saves money compared to disposable filters.
Oiled cotton gauze media — provides strong filtration and airflow.
Drop-in replacement — installs easily in the factory air box.
Designed for increased horsepower — get more power from your engine.
Well-built — backed by K&N's No-Hassle Lifetime Limited Warranty.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Fits these vehicles

Mercedes-Benz CLA45 AMG 2020-2023
Mercedes-Benz CLA45 AMG S 2025
Mercedes-Benz GLA45 AMG 2021-2023

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Product Details

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's No-Hassle Lifetime Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!