Coolant, Filling

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Courtesy of AUDI OF AMERICA, LLC

Ignition switched off.
Used coolant cannot be used again.

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

-- To make the filling procedure easier position the coolant reservoir as high up as possible for example on a vehicle jack or the engine and the transmission.

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

-- 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: 7.0 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 :VAG1274/8 on coolant expansion tank.

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

Vehicles on Which the Bleeding Procedure Is NOT Stored in the Engine Control Module:

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

-- Start the engine.

Duration	Engine Speed	Conditions
Three minutes	2500 RPM	A/C system "OFF", the LED in the AC button does not turn on Heater on "HI", blower speed as low as possible (= 0)
Until the radiator fan runs	Idle	A/C system "OFF" Heater "HI"
2 Minutes	2500 RPM	A/C system "OFF" Heater "HI"

-- Turn off the engine.

Vehicles on Which the Bleeding Procedure Is Stored in the Engine Control Module:

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

-- Connect the Vehicle Diagnostic Tester.

-- Start the program 01 Coolant Circuit Bleeding using the Vehicle Diagnostic Tester and follow the instructions in the vehicle diagnostic tester display.