Coolant Mixture Ratio: Notes

• Coolant (40%) and distilled water (60%) for freeze protection down to -25 °C (-13 °F)
• Coolant (50%) and distilled water (50%) for freeze protection down to -36 °C (-32.8 °F)
• Coolant. Refer to the Parts Information.

-- Reconnect The Coolant Hoses.

-- Fill the :VAS6096  with 10 liters (10.56 quarts) of coolant in the correct mixture ratio, mixture ratio. Refer to Coolant Mixture Ratio .

-- Install the :VAG1274/8  on the coolant expansion tank.

-- Secure the :VAS6096  on the :VAG1274/8  .

-- Place the drain hose -1- in a small container -2-.

-- Close valves -A and B- by turning lever at a right angle to the flow direction.

-- Connect the hose -3- to compressed air.

• Pressure:  6 to 10 bar (87 to 145 psi) positive pressure.

-- Connect the Vehicle Diagnostic Tester.

-- Turn on the ignition and select the following menu items. Refer to Vehicle Diagnostic Tester:

• Guided functions 
• 01 - Engine electronics 
• 01 - Cooling system filling/bleeding 

-- Open the valve -B- by turning the lever in the flow direction.

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• A further vacuum is created in the cooling system by the suction jet pump. The needle on the instrument display must travel into the green region.

-- Briefly open valve -A- by turning lever in direction of flow so that the coolant expansion tank hose on the :VAS6096  fills with coolant.

-- Close the valve -A- again.

-- Leave the valve -B- open another two minutes.

• A further vacuum is created in the cooling system by the suction jet pump. Needle on the instrument display must still remain in the green region.

-- Close the valve -B-.

-- Remove the pressure hose.

• The needle on display must remain in the green range. Only then is there enough vacuum in the coolant system for the filling.

-- Open the valve -A- slowly.

• Coolant is extracted from the :VAS6096  coolant expansion tank due to a vacuum in the coolant system and the system is filled.

-- Remove the :VAS6096  from the coolant reservoir.

-- Fill with coolant to the MAX marking.

-- Install the noise insulation. Refer to OVERVIEW - NOISE INSULATION .

-- If the vehicle has a parking heater, switch it on for about 30 seconds.

-- Set the temperature at "HI".

-- Press the AC  button to turn off the A/C compressor.

• The LED in the button must not come on.

-- Start the engine and run it at approximately 1500 RPM for a maximum of two minutes.

-- With engine running, fill coolant up to overflow hole on coolant expansion tank.

-- Close the coolant reservoir cap until it locks into place.

-- Let the engine run at idle until both large coolant hoses on the radiator are warm.

-- Turn off engine and allow it to cool off.