System Diagram

Vacuum Diagram, from 07.03





1 Resonator

2 Mechanical recirculation valve

3 Secondary Air Injection (AIR) Pump Motor (V101 )

4 Wastegate Bypass Regulator Valve (N75)

5 Air filter

• With Mass Air Flow (MAF) Sensor (G70)

6 Check valve

• Installed position: Arrow on valve points in direction of flow, as shown in illustration.

7 to EVAP canister

8 Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80)

9 Turbocharger

10 Pressure regulator valve for crankshaft housing ventilation

11 Combination valve for secondary air injection (AIR)

12 Check valve for EVAP canister

• Installed position: Arrow on valve points in direction of flow, as shown in illustration.

13 To brake booster

14 Vacuum suction jet pump

15 Check valve

• Installed position: Arrow on valve points in direction of flow, as shown in illustration.

16 Crankshaft housing ventilation

17 Vacuum reservoir

• Component location: Under wheel housing liner in front left wheel housing

18 Check valve

• Installed position: Arrow on valve points in direction of flow, as shown in illustration.

19 to Leak Detection Pump (LDP) (V144)

20 Check valve

• Installed position: Arrow on valve points in direction of flow, as shown in illustration.

21 Secondary Air Injection (AIR) Solenoid Valve ( N112)

• Component location: Below intake manifold

22 Charge air cooler

• With Charge Air Pressure Sensor (G31)

23 Recirculating valve for turbocharger (N249)

• Component location: Below intake manifold

24 Vacuum diaphragm for boost pressure regulation

• When the combination valve is opened, the mechanical boost pressure regulation valve in the turbocharger is opened and secondary air is thereby channeled past the turbocharger directly to the catalytic converter