TT L4-1.8L Turbo (BEA) (2004)
Air Flow Meter/Sensor: Vacuum and Vapor Hose Diagrams
Vacuum Diagram
1
From fuel tank
2
EVAP canister
-
with Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-
3
Check-valve for EVAP canister
-
Between EVAP canister and intake manifold before turbocharger Installation position (light/dark side): Arrow points in direction of flow, as
shown
4
Turbocharger
5
Pressure unit for boost pressure regulation
6
Mechanical recirculation valve
7
Brake booster
8
Check-valve
-
Between brake booster and intake manifold
-
Installation position (light/dark side): Arrow points in direction of flow, as shown
9
Wastegate bypass regulator valve -N75-
10
Mass Air Flow (MAF) sensor -G70-
11
Air cleaner housing
12
Pressure control valve for crankshaft housing ventilation
13
Vacuum reservoir
-
Bolted on at cylinder head
14
Charge air cooler
-
With charge air pressure sensor -G31-
15
Fuel pressure regulator
16
Throttle valve control module -J338-
17
Intake manifold
-
With Intake Air Temperature (IAT) sensor -G42-
18
Crankcase ventilation
19
Check-valve