HomeAboutStore Signup
PartsByVehicle.com
K And N Replacement Air Filter K&N 400-E-0646

About this part

What it does. K And N Replacement Air Filter K&N 400-E-0646 keeps dust and debris out of the intake so the engine draws clean air.

Symptoms that point to this part

  • Reduced fuel economy
  • Sluggish acceleration
  • Visibly dirty or clogged filter element

Service note. Typically inspected at every service and replaced roughly annually.

Fitment. Catalogued as fitting 2018–2025 Audi S5, 2021–2025 Audi Sq5 Sportback, 2018–2025 Audi A4 Quattro, 2018–2025 Audi A4 Allroad, 2018–2025 Audi S4, 2020–2025 Audi Q5 Phev, 2019–2025 Audi Q5, 2024–2025 Audi Q5 Sportback, 2018–2024 Audi Sq5, 2018–2024 Audi A5 Sportback, 2018–2024 Audi A5 Quattro, 2018–2024 Audi Rs5, 2018–2023 Audi S5 Sportback, 2018 Audi A4. Engine, sub-model and trim can narrow fitment further, so check those attributes on the listing before ordering.

Fits these vehicles