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SKU: 33-3173 | UPC: 024844394217
K&N High-Flow Lifetime Air Filter for 2021-2022 Mercedes-Benz C300 2.0L L4
This K&N 33-3173 replacement air filter is designed for the 2021-2022 Mercedes-Benz C300 2.0L L4 engine, including Base and 4Matic submodels. It uses advanced oiled cotton gauze media to deliver up to 50% more airflow than stock filters while trapping dirt and debris for engine protection. Drivers gain better throttle response, increased horsepower and torque, plus a washable design that lasts your vehicle's lifetime with a 10-Year/Million Mile Limited Warranty.
Key Features
- High-Flow Oiled Cotton Media: Multi-layer gauze captures contaminants at 99% efficiency while allowing maximum air intake for power gains.
- Washable and Reusable: Clean and re-oil every 50,000 miles using K&N Recharger Kit (sold separately) to maintain performance without replacements.
- Direct Drop-In Fit: Matches factory airbox dimensions of 11.063 in L x 7.625 in W x 1.625 in H for simple installation in minutes.
- Performance Boost: Improves engine breathing for quicker acceleration, better fuel efficiency, and up to 2.4 MPG gains reported by users.
- Lifetime Durability: Built with premium materials and backed by K&N 10-Year/Million Mile Limited Warranty for long-term reliability.
Product Notes
- Verify vehicle fitment by year, make, model, submodel, and 2.0L L4 engine before purchase.
- Clean filter regularly per K&N instructions to preserve warranty and airflow performance.
- Product weight is 1.1 lbs. ships in protective retail box.
Installation Notes
- Professional installation recommended.
- Remove factory air filter from airbox. insert K&N 33-3173 panel filter directly with no tools needed.
- No modifications, adapters, or additional hardware required for OEM airbox compatibility.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2022 | Mercedes-Benz | C300 | Base |
| 2021-2022 | Mercedes-Benz | C300 | 4Matic |
| 2022-2025 | Mercedes-Benz | C300 | Base |
| 2022-2025 | Mercedes-Benz | C300 | 4Matic |
| 2024-2025 | Mercedes-Benz | CLE300 | 4Matic |
| 2023-2025 | Mercedes-Benz | E350 | 4Matic |
| 2023 | Mercedes-Benz | E350 | Base |
| 2025 | Mercedes-Benz | E350 | Base |
| 2023-2025 | Mercedes-Benz | GLC300 | 4Matic |
| 2023-2025 | Mercedes-Benz | GLC300 | Base |
| 2023-2025 | Mercedes-Benz | GLE350 | 4Matic |
| 2023 | Mercedes-Benz | GLE350 | Base |
| 2025 | Mercedes-Benz | GLE350 | Base |
| 2024-2025 | Mercedes-Benz | GLE450e | 4Matic |
Why Choose K&N?
- Over 50 years engineering high-performance air filters trusted by millions of drivers worldwide.
- Proven dyno-tested gains in horsepower and torque on Mercedes-Benz engines.
- Precision-molded rubber seals ensure airtight fit in factory housings for zero air leaks.
Frequently Asked Questions
-
Q: Does this fit my 2022 Mercedes C300 4Matic 2.0L?
A: Yes, the 33-3173 installs directly into the factory airbox of 2021-2025 C300 Base and 4Matic models with 2.0L L4 engine. -
Q: What material is used in this filter?
A: Multi-layered oiled cotton gauze provides high airflow and filtration down to 10 microns for engine safety. -
Q: What is the warranty and maintenance process?
A: 10-Year/Million Mile Limited Warranty. wash with K&N kit every 50,000 miles, re-oil, and reinstall.
Shipping & Handling
- Method: Standard ground shipping via UPS or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Secure retail box measuring 12.5 in x 8.5 in x 2.5 in
- Weight: 1.1 lbs net weight, 1.2 lbs shipping weight
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