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K&N E-0646 Air Filter – Audi A4 2.0P / 3.0 V6 Diesel
Description
The K&N E-0646 is a premium European-specification washable, reusable high-flow air filter for the Audi A4 with 2.0L petrol and 3.0L V6 diesel engine variants. K&N's oiled cotton gauze construction delivers significantly higher airflow than the OEM paper element while maintaining excellent filtration efficiency, helping both the turbocharged petrol and diesel A4 variants breathe more freely for improved throttle response and engine efficiency.
The E-0646 is a direct drop-in replacement for the Audi A4's factory airbox filter. It installs in minutes with no modification, and is maintained with K&N's cleaning and re-oiling kit for reuse across the vehicle's entire lifetime — eliminating the recurring cost of OEM filter replacements.
Key Features:
- K&N Part No. E-0646 — drop-in for Audi A4 2.0P and 3.0 V6 DSL airbox
- Compatible with both petrol and diesel A4 variants
- Oiled cotton gauze media — up to 50% more airflow than OEM paper
- Washable and reusable — lifetime air filter
- No airbox modification required
- USA-manufactured to ISO 9001:2015 quality standard
- Improved throttle response across the rev range
