Using your Injen cold air intake is easy. First, make sure your engine is off and cool before installation. Follow the included instructions to install the intake in your 2016 - 2018 Audi A6 2.0L Turbo. Once installed, start your engine and enjoy the enhanced performance and the great sound. When it comes to maintenance, regularly check the Injen SuperNano - Web dry air filter. If it looks dirty, you can clean it following the cleaning guide provided. Make sure to use the recommended cleaning products. Also, check the intake tube for any signs of damage or loose connections. And remember, since this intake comes with a limited lifetime warranty, keep your purchase receipt in case you need to make a claim.