Secondary air injection (AIR) system components, assembly overview: Notes

WARNING: This page is about a different car, the 2004 Volkswagen R32. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

The installed location of secondary air injection (AIR) pump relay J299 is Secondary Air Injection (AIR) pump relay J299 - arrow -

Fig 1: Secondary Air Injection System Components, Assembly Overview

Courtesy of VOLKSWAGEN UNITED STATES, INC.

1 - Intake manifold

2 - Vacuum actuator for variable intake manifold

3 - To Intake manifold

4 - To fuel pressure regulator

5 - Combi-valve

Checking, refer to Combi-valve, checking

6 - Gasket

Replace

7 - Air channel

In cylinder head

8 - 10 Nm

9 - Connection

For combi-valve

10 - 5 Nm

11 - Pressure hose

Ensure seated tightly

12 - O-ring

Replace if damaged

13 - Connection

14 - Bracket

For secondary air injection (AIR) pump motor
With brace to oil pan

15 - 20 Nm

16 - Connector

For secondary air injection (AIR) pump motor

17 - Rubber bushing

18 - Secondary air injection (AIR) pump motor V101

19 - Air filter housing

Clean if soiled

20 - Retaining clip

21 - Intake tube

Ensure seated tightly

22 - Non-return valve

White connector faces towards Secondary Air Injection (AIR) Solenoid Valve N112 / Intake Manifold Tuning (IMT) Valve N156

23 - Connector

Black, 2-pin

24 - Intake manifold change-over valve N156

25 - Secondary air injection (AIR) solenoid valve N112

26 - To vacuum reservoir