Air Cleaner Housing

Vacuum System Layout







1 - Secondary air injection (AIR) solenoid valve -N112-
2 - Crankcase breather
3 - Secondary air injection (AIR) pump motor -V101-
4 - Throttle valve control module -J338-
5 - Non-return valves for EVAP canister
- Between EVAP canister and intake manifold
- Between EVAP canister and intake pipe upstream of turbocharger
- Install with light and dark sides in the positions shown in the illustration. Arrow points in direction of flow.
6 - Charge air cooler
- With charge air pressure sensor -G31
7 - Check valve
- Inserted into the vacuum reservoir
8 - Vacuum reservoir
- Leak detection pump (LDP) -V144-
9 - Evaporative Emission (EVAP) canister purge regulator valve -N80-
10 - Test connection
11 - Leak detection pump (LDP) -V144-
- Installation position: In front right wheelhousing behind the wheelhousing liner
12 - to EVAP canister
13 - to EVAP canister
14 - Turbocharger
15 - Vacuum unit for charge pressure control
16 - Mechanical air recirculation valve
17 - Brake booster
18 - Non-return valve
- Between brake booster and intake manifold
- Install with light and dark sides in the positions shown in the illustration. Arrow points in direction of flow.
19 - Wastegate bypass regulator valve -N75-
20 - Mass air flow (MAF) sensor-G70-
21 - Air cleaner
22 - Crankcase breather pressure regulating valve
23 - Combination valve for secondary air system
24 - Vacuum reservoir
- Bolted to cylinder head cover
25 - Fuel pressure regulator
26 - Intake manifold
- With intake air temperature (IAT) sensor -G42-
27 - Non-return valve
- Install with light and dark sides in the positions shown in the illustration. Arrow points in direction of flow.
28 - Recirculating valve for turbocharger -N249-