BenzUnited Parts
K&N 33-3034 High-Flow Air Filter – Mercedes-Benz C300, GLC300, E300, SLC300 (2015–2021)
K&N 33-3034 High-Flow Air Filter – Mercedes-Benz C300, GLC300, E300, SLC300 (2015–2021)
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K&N High-Flow Drop-In • OEM Airbox Fitment • Washable & Reusable
High-Flow OEM Drop-In Air Filter for Mercedes-Benz
K&N 33-3034
A direct replacement panel filter designed to improve airflow and throttle response while keeping your factory airbox and factory drivability.
Trusted worldwide—one of the most popular OEM-replacement upgrades in the K&N lineup.
No cutting, no tuning
Built to last long-term
No-Hassle Limited Lifetime
The K&N 33-3034 is a high-flow, oiled cotton gauze panel air filter engineered for select Mercedes-Benz models. It installs in minutes inside your factory airbox and is designed to help your engine breathe easier while maintaining OEM-level fitment and daily drivability.
Ideal for a clean OEM+ upgrade—whether you’re stock or paired with basic bolt-ons—this filter delivers a sharper feel without changing how the car behaves around town.
Is this the right upgrade for you?
- Improved airflow without changing sound
- A long-term reusable upgrade
- OEM reliability and easy service
- Loud induction noise
- Visual engine bay mods
- Maximum power gains
Why Upgrade to K&N?
Helps reduce intake restriction vs. paper filters
Crisper throttle feel and smoother pull
Clean and re-oil instead of replacing
Stock look, easy serviceability
Specifications (K&N 33-3034)
- Filter Type: High-flow panel filter (oiled cotton gauze)
- Washable: Yes
- Oil Included: Yes
- Re-Oiling Amount: 0.95 oz (28 ml)
- Dimensions: 10.781" (L) x 6.813" (W) x 1.0" (H)
- Warranty: K&N No-Hassle Limited Lifetime Warranty
Confirmed Vehicle Fitment
| Model | Years |
|---|---|
| Mercedes-Benz C300 | 2015–2021 |
| Mercedes-Benz GLC300 | 2016–2019 |
| Mercedes-Benz GLC350e | 2020 |
| Mercedes-Benz E300 | 2017–2019 |
| Mercedes-Benz SLC300 | 2017–2020 |
Fitment can vary by market/trim. If you’re unsure, send us your VIN and we’ll confirm before you order.
Free fitment confirmation before shipping when you provide your VIN.
Installation & Maintenance
- Install: Drop-in replacement in the factory airbox (basic hand tools only)
- No Tune Required: Compatible with factory ECU calibration
- Service: Wash and re-oil when needed for best performance
- Tip: Allow the filter to fully dry before re-oiling and reinstalling
Note: Oiled filters should be serviced correctly to avoid over-oiling. Follow K&N cleaning/oiling instructions for best results.
