Secondary Air Injection System, Component Overview

Secondary Air Injection System, Component Overview

NOTE: Components marked with are tested via On Board Diagnostic (OBD), Diagnostic mode 3: Check DTC memory.







1 - Secondary Air Injection (AIR) Pump Relay J299
- If tools are necessary to pull relays or control modules out of the relay plate, first disconnect battery Ground (GND) strap.
- Check activation of the Secondary Air Injection (AIR) Pump Relay
2 - Motronic Engine Control Module (ECM) J220
3 - Secondary Air Injection (AIR) Solenoid Valve N112
4 - Intake manifold
5 - Non-return valve
- Installation position (light/dark side): Arrow points in direction of aperture, as shown in figure.
6 - Vacuum reservoir
- Bolted on at cylinder head cover
7 - Charge air regulation vacuum diaphragm
8 - Turbocharger
9 - Cylinder head
10 - Combi-valve
- For secondary air injection
11 - Air filter
12 - Secondary Air Injection (AIR) Pump Motor V101