By Bassem Girgis - March 30, 2016. This article applies to the Audi A4 B8 (2009-2015). Cold air intake (CAI) kits are designed to increase your Audi A4's performance and better your fuel consumption. It replaces your stock air box, which allows you to pull cold air from outside of the warm engine compartment, thus increasing its performance.
This simply means that it is the model of Audi A4 based on the Volkswagen Group (Audi/Seat/VW) B8 Platform. You can find out more about platform codes here. Audi: A4 8W9 B9 Allroad: Click to see alloy wheels for the Audi A4 8W9 B9 Allroad : 17x6.5: 28: 225/55R17: Audi : 17x7.5: 29: 225/55R17: Audi : 18x7.5: 29: 245/45R18: Audi : 19x6: 26:
The Audi Online Owner's Manual features Owner's, Radio and Navigation Manuals for Audi vehicles from model year 2008 to current. To view your specific vehicle's manuals, please enter a valid 17 digit VIN (Vehicle Identification Number). Vehicle Identification Number. Submit >> O5jdFQo.