Variable Induction System: Service and Repair

Intake Manifold Change-Over Components, Replacing






1 - Vacuum setting element
2 - Compression spring
3 - Vacuum hose
- From intake manifold.
4 - Check valve
- Installed position: blue side toward Y-piece
5 - To Secondary Air Injection (AIR) solenoid valve (N112)
6 - 6 Nm
7 - Intake manifold change-over valve (N156)*/**
- resistance: 25 - 35 Ohms
8 - Y-piece
9 - To fuel pressure regulator
10 - T-piece
11 - 10 Nm
12 - Securing plate
13 - Rubber grommet
14 - Spacer sleeve
15 - Vacuum reservoir
- Installation location: in left wheel well
- for intake manifold change-over at full throttle
16 - Intake manifold
17 - Washer
- conical side toward intake manifold
18 - Seal
- replace if damaged
19 - Rotary change-over valve
20 - Seal
- for rotary change-over valve