Coolant Mixture Ratio

• Coolant (40%) and water (60%) for freeze protection down to -25 °C (-13 °F)
• Coolant (50%) and water (50%) for freeze protection down to -35 °C (-31 °F)
• Coolant. Refer to the Parts Information.

Coolant, Filling

Courtesy of AUDI OF AMERICA, LLC

-- Fill the coolant reservoir of the :VAS6096  with ten liters of premixed coolant with the proper mixture ratio. Refer to Coolant Mixture Ratio .

-- Install the :VAG1274/8  on the coolant expansion tank -1-.

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

-- Place the drain hose -2- in a small container -3-.

TIP:

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 -4- 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.

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.

-- 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.
• Repeat the procedure if the needle goes below the green range.
• Check the cooling system for leaks if the pressure drops.

-- 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 coolant expansion tank.

-- Fill with coolant up to "max" marking. Fill again during the bleeding procedure if required.

Bleed Cooling System.

-- Install the air duct hose. Refer to OVERVIEW - CHARGE AIR HOSE CONNECTIONS .

-- Tighten the cap on the coolant expansion tank until it locks into place.

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

-- Start the engine.

-- Turn off the engine.

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