Filling Coolant (Includes Bleeding)

Information 

• Only use Genuine Porsche coolant. 
• Never mix coolant with other coolants. 

Information 

The process of filling and bleeding the cooling system is performed using the special tool filling device 9696  .

Information 

• If no vacuum is built up, there is a leak in the cooling system or the connection pressure is too low. 
• Deformation of the rubber hoses in 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. 
• If both shut-off valves are closed and the compressed air supply is disconnected, the vacuum must not drop. 
• If the vacuum drops within approx. 30 seconds, there is a leak in the cooling system. 

1. Screw cap adapter for coolant expansion tank (K22) onto the tank and attach the flexible extension (Fz 100) to the cap.
   Fig 1: Identifying Coolant Expansion Tank Adapter

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2. Connect the vacuum pressure gauge of the bleeder tool to the flexible extension. When doing so, ensure that both shut-off valves are closed (positioned at 90° to flow direction).
3. Connect the Venturi nozzle to the vacuum pressure gauge.
   Fig 2: Connecting Venturi Nozzle On Vacuum Pressure Gauge

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   Information 

   • The quantity of coolant available should exceed the amount required to fill the system by about two liters in order to prevent air being sucked in. 
   • An antifreeze content of -35 °C corresponds to a mixture of 50:50 (coolant: water). 
4. Place a canister with a sufficient amount of coolant and with an antifreeze content of -35 °C behind the vehicle close to the expansion tank.

   Information 

   • The bleeding process is completed more quickly if the canister is positioned at the same height as the coolant reservoir. 
5. Push the filler hose of the vacuum pressure gauge -5-  onto the canister connection. Draw off the return line -6-  of the Venturi nozzle into a second empty container.
   Fig 3: Identifying Special Canister Filling Tool

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   Information 

   • A hissing sound after connecting the compressed air supply is normal. 
6. Connect the compressed air supply to the Venturi nozzle.
   Fig 4: Connecting Compressed Air Supply On Venturi Nozzle

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7. Open both shut-off valves on the vacuum pressure gauge until the transparent filler hose has completely filled with coolant.
   Fig 5: Identifying Shut-Off Valves

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8. Close left shut-off valve on the vacuum pressure gauge and allow a vacuum to build up in the coolant circuit.
   Fig 6: Locating Left-Hand Shut-Off Valve

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9. When there is enough vacuum in the cooling system (pointer is in the green area), close the right shut-off valve and then unplug the compressed air supply.
   Fig 7: Identifying Vacuum Gauge

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10. Open the left shut-off valve on the vacuum pressure gauge (right-hand valve closed -arrow-  ). The cooling system is then filled.
    Fig 8: Locating Shut-Off Valve

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11. When the cooling system no longer contains a vacuum (vacuum pressure gauge shows zero), i.e. no more coolant is being sucked out of the canister, open the right-hand shut-off valve.
12. Then, remove the filling device.
13. If necessary, fill the coolant expansion tank with coolant up to the maximum marking and screw on the cap -1-  of the expansion tank (do not tilt).
    Fig 9: Identifying Coolant Expansion Tank Cap

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