Version 2

Secondary Air Injection Combination Valves, Checking for Function and Leaks

Special tools, testers and auxiliary items required

• Hand Vacuum Pump (VAS 6213)

Procedure

- Pull rear engine cover off - arrows -.





- Remove the vacuum hose - 3 - from the secondary air injection combination valve - 2 -.





- Remove the secondary air hose - 1 - by pressing the release buttons.

- Connect the Hand Vacuum Pump (VAS 6213) to the vacuum connection - 1 - on the secondary air combination valve that will be tested.





- Connect a suitable assisting hose to the secondary air combination valve - 2 -.

- Blow lightly into the assisting hose by mouth, do not use compressed air.

• Secondary Air Injection (AIR) combination valve must be closed, it must not be possible to blow through.

- Run the hand vacuum pump to generate a vacuum.

• The Secondary Air Injection (AIR) combination valve must open, it must be possible to blow through.

- If the secondary air combination valve does not react as described, replace it. Refer to: Left => [ Secondary Air Injection Left Combination Valve ] Secondary Air Injection Left Combination Valve, right => [ Secondary Air Injection Right Combination Valve ] Secondary Air Injection Right Combination Valve.

Assembly is in reverse order of removal, note the following:

- Install engine compartment trim.