Vehicles Without Secondaary Air Injection (Air)

Vacuum Diagram

Vehicles without Secondary Air Injection (AIR)







1 - To reservoir under right front wheel housing shell

2 - Air cleaner

3 - Mass Air Flow (MAF) sensor

4 - Evaporative Emission (EVAP) canister

5 - Turbocharger engine bank 1

6 - Check valve (arrow indicates direction of flow through valve)

7 - Wastegate bypass regulator valve -N75-

8 - Evaporative Emission (EVAP) canister purge regulator valve -N80-

9 - Crankcase check valve

10 - Collector housing for crankcase ventilation

11 - To power brake booster

12 - Check valve (arrow indicates direction of flow through valve)

13 - Vacuum limiter valve

14 - Fuel pressure regulator

15 - Check valve (arrow indicates direction of flow through valve)

16 - To Leak Detection Pump (LDP) -V144-

17 - Vacuum reservoir

18 - Turbocharger engine bank 2

19 - Pressure unit for charge air pressure regulation

20 - Charge air cooler engine bank 2

21 - Pressure hose engine bank 2

22 - Pressure line engine bank 2

23 - Cut-out valve (mechanical circulation valve)

24 - Pressure hose

25 - Recirculating valve for turbocharger - N249-

26 - Connection hose
- For both charge air coolers

27 - Connection hose

28 - Cut-out valve (mechanical circulation valve)

29 - Check valve for crankcase ventilation

30 - Pressure line engine bank 1

31 - Pressure hose engine bank 1

32 - Charge air cooler engine bank 1

33 - Pressure unit for charge air pressure regulation