Audi Workshop Service and Repair Manuals > A4 Mk1 > Power unit | Motronic injection and ignition system (6 cyl. turbo) | Mixture preparation system, electronic inj.,Gas | Vacuum diagram | Subsystem air recirculation control (air recirculation thrust control)

Motronic injection and ignition system (6 cyl. turbo)

Vacuum diagram

Subsystem air recirculation control (air recirculation thrust control)



Air recirculation valve for turbocharger (N249) Non-return valve (arrow indicates flow direction through valve) Vacuum reservoir Mechanical air recirculation valves

Audi Workshop Service and Repair Manuals