Secondary Air Injection Combination Valves, Checking For Function and Leaks

Secondary Air Injection Combination Valves, Checking for Function and Leaks

Special tools, testers and auxiliary items required

• Hand Vacuum Pump (VAS 6213)

Procedure

- Install protective body covers. Refer to => [ Protective Body Covers, Installing ] Procedures.

- R8 Spyder: Remove the service flap.





- Remove the air filter housing.





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





- Remove the secondary air hose - 4 - by pressing the release buttons.

• The illustration shows the left secondary air combination valve.

• For better accessibility, remove the hose in the R8 Spyder at the secondary air injection pump instead of the combination valve.

• Ignore - 1, 3 and 5 -.

- Connect the (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 combination valve must be closed, it must not be possible to flush.

- Run the hand vacuum pump to generate a vacuum.

• The Secondary air injection combination valve must open, it must be possible to flush.

- Replace the secondary air injection combination valve if it does not react as described. Refer to => [ Secondary Air Injection Left Combination Valve ] Secondary Air Injection Left Combination Valve and => [ Secondary Air Injection Right Combination Valve ] Secondary Air Injection Right Combination Valve.

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

- Install air filter housing.

- Install the service flap.

- Install the engine compartment trim.