Filling cooling system (includes bleeding)

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Screw lid adapter for coolant expansion tank (K 22) onto the expansion tank.
Connect the flexible extension (Fz 100) to the lid.

Fig 1: Connecting Flexible Extension (Fz 100) To Coolant Expansion Tank Lid
Courtesy of PORSCHE OF NORTH AMERICA, INC.
Connect the vacuum pressure gauge of the bleeder tool to the flexible extension. When doing so, ensure that both shutoff valves are closed (positioned 90° to flow direction)
Connect the Venturi nozzle onto the vacuum pressure gauge.

Fig 2: Connecting Venturi Nozzle Onto Vacuum Pressure Gauge
Courtesy of PORSCHE OF NORTH AMERICA, INC.
NOTE:
- The radiator cleaning amount which is prepared must be approx. 2 litres more than the amount which has to be filled.
- An anti-freeze content of - 35° C corresponds to a mixture of 50:50 (anti-freeze protection: Water).?
Place a canister with a sufficient amount of coolant and with an anti-freeze content of - 35°C at rear of vehicle near to the expansion tank.
NOTE:
- The bleeding process is completed more quickly if the canister is positioned roughly the same height as the coolant expansion tank.
Push the filler hose -(5)- of the vacuum pressure gauge onto the canister connection. Draw off the return line -(6)- of the Venturi nozzle into a second container.

Fig 3: Identifying Filler Hose & Return Line
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NOTE:
- A hissing sound after connecting the compressed air supply is usual.
Connect compressed air supply.

Fig 4: Connecting Compressed Air Supply
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Open both shutoff valves on the vacuum pressure gauge until the transparent filler hose has completely filled with coolant.

Fig 5: Opening Both Shutoff Valves On Vacuum Pressure Gauge
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Close the left shutoff valve (V1) on the vacuum pressure gauge and build up vacuum in the coolant circuit.

Fig 6: Identifying A Vacuum Build-Up
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NOTE:
- If a vacuum does not build up, there is a leaking valve in the coolant circuit.
- Deformation of the rubber hose of the cooling system is normal.
- If the indicator of the pressure gauge is in the green area of the display scale, enough vacuum has been built up.
- After both shutoff valves on the vacuum pressure gauge have been closed and the compressed air supply has been unplugged, the vacuum must not drop. If the vacuum drops within approx. 30 seconds, there is a leaking point in the coolant circuit.
When there is enough vacuum in the cooling system, close the right shutoff valve (V2) and subsequently unplug the compressed air supply.
Reopen the left shutoff valve (V1) on the compressed air pressure gauge. The cooling system will now be filled.

Fig 7: Reopening Left Shutoff Valve On Compressed Air Pressure Gauge
Courtesy of PORSCHE OF NORTH AMERICA, INC.
When there is no trace of vacuum present or the coolant is no longer suctioned from the canister, open the right shutoff valve (V2).
Subsequently remove the complete filling tool (including the lid K 22 ).
If necessary, fill the coolant expansion tank with coolant up to the maximum marking and screw on the cap of the expansion tank.

Fig 8: Installing Coolant Expansion Tank Cap
Courtesy of PORSCHE OF NORTH AMERICA, INC.
Completely reinstall the underside panel.

Fig 9: Reinstalling Underside Panel
Courtesy of PORSCHE OF NORTH AMERICA, INC.
Conduct a test drive with the vehicle and check the fluid level in the expansion tank after the coolant circuit has cooled again and if necessary fill up to the maximum marking with coolant.