Coolant, Filling

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Fig 1: Coolant, Filling

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Used Coolant Cannot Be Used Again.

-- Fill with coolant reservoir from the :VAS6096 with 10 liters (10.5 quart) of premixed coolant in the correct mixture ratio. Refer To COOLANT MIXTURE RATIO for the mixture ratio.

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

-- Attach the :VAS6096 to the :VAG1274/8 .

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

NOTE:

A Small Amount Of Coolant Which Should Be Collected Is Drawn Off With The Discharged Air.

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

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

Pressure: 7 to 10 bar (101.52 psi to 145.03 psi) positive pressure.

-- Open The Valve -B- By Turning The Lever In The Flow Direction.

Fig 2: NO CONTENT

Courtesy of AUDI OF AMERICA, LLC

The suction jet pump generates pressure in the coolant system; indicator on display instrument must move into green area.

-- Additionally briefly open the valve -A- by turning the lever in the flow direction so that the hose on the :VAS6096 coolant reservoir fills with coolant.

-- Close the valve -A- again.

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

More pressure is generated in the coolant system by the suction jet pump; indicator on display instrument must stay in the green area.

-- Close the valve -B-.

Needle in the display instrument must remain in the green region, then the sufficient vacuum in the cooling system is obtained for the upcoming filling.

NOTE:

If the needle stands below the green area, repeat the procedure.

If the pressure falls, check the coolant system for leaks.

-- Remove The Pressure Hose.

-- Open the valve -A-.

Coolant is extracted from the :VAS6096 coolant reservoir by pressure in the coolant system and the system is filled.

-- Remove the :VAS6096 from the :VAG1274/8 on the coolant expansion tank.

-- Attach the :VAG1274/10 to the :VAG1274/8 .

Fig 3: Identifying Special Tools - V.A.G 1274/10 & V.A.G 1274/8

Courtesy of AUDI OF AMERICA, LLC

-- Fill the :VAG1274/10 with coolant. Fill again during the bleeding procedure if required.

-- Remove The Plenum Chamber Cover. Refer To PLENUM CHAMBER COVER, REMOVING AND INSTALLING .

-- Loosen the coolant hose to the heater core for the heater and pull back until the connection no longer covers the bleed hole -arrow- in the coolant hose.

Fig 4: Locating Heat Exchanger Bleeder Hole

Courtesy of AUDI OF AMERICA, LLC

-- Fill with coolant until it escapes from the coolant hose bleed hole.

-- Slide the coolant hose onto the connection and secure with a spring clamp.

-- Close the coolant expansion tank cap.

-- Start the engine.

-- Adjust the temperature for all zones to "HI".

-- Set the fresh air blower to the lowest level.

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

The LED in the button must not come on.

-- Run the engine at 2000 RPM for three minutes.

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

-- Allow the engine to run for two minutes at 2000/RPM.

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

-- On a vehicle with a parking heater turn it on for approximately 30 seconds and let the engine idle.

-- Install The Front Noise Insulation. Refer To NOISE INSULATION, REMOVING AND INSTALLING .