Audi S4 Air Filter - 2004-09 - Mahle

Extend your Audi S4 engine life and reduce maintenance costs with regular engine air filter changes. The engine air filter is responsible for the removal of dirt, particles, dust, and soot before entering the engines air intake system. This prevents accelerated internal engine wear or damage and sensitive electronic component damage.

We recommend replacing your Audi S4 air filter once a year or every 30,000-40,000 miles, which ever occurs first. Vehicles that drive consistently down dirt or gravel roads should have the engine air filter replaced more frequently, such as 30,000 miles. Those spending more time on clean roads can change there engine air filter less frequently, such as 40,000.