Audi A4: Engine

 A/C System, Operating after Charging

  Note If the mechanically driven Air Conditioning (A/C) compressor was removed, rotate it approximately 10 times by hand before using it for the first time (during or after installing, for example before installing the belt) to prevent damage caused by liquid impact when first switched

 Personalization

Users General information Applies to: vehicles with personalized user settings Depending on vehicle equipment and your country, your vehicle may be able to manage various users in the MMI. Each user will be assigned the settings that they last used. Before you begin driving, you can select a user i