Coolant, Filling
- 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.
-- Install the :VAG1274/8 on the coolant expansion tank.
-- Attach the :VAS6096 on the :VAG1274/8 .
-- Place the drain hose -1- in a small container -2-.
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 -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.
- 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 the coolant expansion tank.
-- Remove the :VAG1274/8 from the coolant expansion tank.
-- Tighten the cap on the coolant expansion tank until it locks into place.
Bleed Cooling System.
On Vehicles with Parking/Auxiliary Heater:
- Switch on the parking/auxiliary heater for approximately 30 seconds.
Continuation for All:
-- Connect the Vehicle Diagnostic Tester to the vehicle.
-- Select the following menu items on the Vehicle Diagnostic Tester.
- Guided Fault Finding mode
- Select individual tests
- V6 TFSI engine (Repair group 01; 13-28)
- 01 - OBD-capable systems .
- 01 - Engine Control Module J623
- Engine functions
- 01 - Coolant circuit bleeding
-- Follow the instructions given in the Vehicle Diagnostic Tester.