Audi A4: Engine

 Connections for Quick-Release Coupling on Refrigerant Circuit

General Information Only valves and connections that are resistant to refrigerant R134a and refrigerant oil must be installed. Different connections (outer diameter) for high pressure and low pressure side. Discharge the refrigerant circuit before removing valves or valve inserts. Always scr

 Audi active lane assist/lane departure warning

General information Applies to: vehicles with Audi active lane assist The Audi active lane assist/lane departure warning (called only Audi active lane assist in the vehicle displays and in the information that follows in this Owner's Manual) can detect lane marker lines within the limits of the syst