Coolant Mixture Ratio

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

Procedure 

Fig 1: Identifying Drain Plug

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-- Close the -arrow- drain plug.

-- Connect the coolant hose and clamp -arrow- to the left front coolant pipe.

Fig 2: Coolant Hose From The Left Front Coolant Pipe

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-- Fill the coolant reservoir on the Cooling System Charge Kit VAS6096 with at least twelve liters of premixed coolant with the proper mixture ratio:

Fig 3: Filling Coolant Reservoir Of Cooling System Charge Unit VAS 6096

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-- Install the Cooling System Tester - Adapter VAG1274/8 on the coolant expansion tank.

-- Attach the Cooling System Charge Kit VAS6096 on the Cooling System Tester - Adapter VAG1274/8.

-- Place the air outlet hose -1- in a small container -2-.

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

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

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

-- Open valve -B- by turning level in direction of flow.

Fig 4: Cooling System, Draining And Filling

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

-- Briefly open valve -A- by turning lever in direction of flow so that hose on the Cooling System Charge Kit VAS6096 coolant reservoir fills with coolant.

-- Close valve -A- again.

-- Leave 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 green area.

-- Close 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.

-- Remove pressurized air hose.

-- Open valve -A-.

• Coolant is extracted from the Cooling System Charge Kit VAS6096 coolant reservoir by pressure in the coolant system and the system is filled.

-- Remove the Cooling System Charge Kit VAS6096 from the Cooling System Tester - Adapter VAG1274/8 on coolant expansion tank.

-- Connect the Cooling System Tester - Adapter VAG1274/10 to the Cooling System Tester - Adapter VAG1274/8.

Fig 5: Identifying Special Tools - VAG 1274/10 & VAG 1274/8

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-- Fill the coolant until the coolant system tester tube is full. Fill again during the bleeding procedure if necessary.

-- Remove the engine cover, refer to ENGINE COVER, REMOVING AND INSTALLING .

-- Remove the plenum chamber cover -2-, refer to PLENUM CHAMBER COVER, REMOVING AND INSTALLING .

Fig 6: Identifying Clips -1- & Remove Plenum Chamber Cover -2-

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-- Open the bleeder screw -arrow- on the front coolant line until the coolant starts to come out.

Fig 7: Open The Bleeder Screw

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-- Close the bleeder screw.

-- Disconnect the heat exchanger coolant hose and pull it back until coolant starts to drain out of the bleed hole -arrow- in the coolant hose.

Fig 8: Locating Heat Exchanger Bleeder Hole

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

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

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

Fig 9: Identifying Coolant Reservoir Marking

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-- Start the engine.

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

-- Install the noise insulations, refer to OVERVIEW - NOISE INSULATION .