Cayenne Turbo (9PA) V8-4.8L Turbo (2008)
/v8-4.8l_turbo/Page-315008.png)
Connecting compressed air supply
8. Open both shut-off valves on the vacuum pressure gauge until the transparent filler hose has completely filled with coolant.
Shutoff valves on vacuum pressure gauge
9. Close the left shutoff valve (V1) -arrow- on the vacuum pressure gauge and allow a vacuum to build up in the coolant circuit.
Closing left shutoff valve (V1)
Information
If no vacuum is generated (the pointer does not move to the green area), there is a leak in the cooling system.
If a vacuum is still not established, there is a blockage in the tool. Clean the device, use clean compressed air.
Deformation of the rubber hoses of the cooling system is normal.
When the pressure gauge pointer is in the green area of the display scale, a sufficient vacuum has been built UP
After both shutoff valves on the vacuum pressure gauge have been closed and the compressed air supply has been disconnected, the vacuum must
not drop. If the vacuum drops within approx. 30 seconds, there is a leak in the coolant circuit.
10. When there is a sufficient vacuum in the cooling system (indicator is in the green area), close the right shutoff valve (V2) and then disconnect the
compressed air supply.
