Volkswagen Workshop Service and Repair Manuals

Engine codes 1Z, AHU, ALE

•      1 -     → Intake hose
•      2 -     Hose, black
•      3 -     Charge pressure control solenoid valve (N75)
•      4 -     Charge air control pressure unit
•      5 -     Hose, blue
•      6 -     Turbocharger
•      7 -     Hose, red

Engine code AAZ

•      1 -     → Two-way valve
•      2 -     To vacuum pump
•      3 -     Turbocharger (KKK)
•      4 -     Charge pressure control valve
•      5 -     Turbocharger (Garrett)
•      6 -     Charge pressure control valve

Engine codes AFN, AVG

• Air cleaner
• Solenoid valve for charge pressure control (N75)
• Exhaust gas recirculation valve (N18)
• To Diesel direct injection system control unit (J248)
• Pressure unit
• ◆ For charge pressure control
• Exhaust gas recirculation valve (mechanical)
• Brake servo
• Non-return valve

• To vacuum reservoir
• ◆ In wheel housing
• Non-return valve
• ◆ White connection to charge pressure control solenoid valve -item 2 - and to vacuum reservoir