Coolant Mixture Ratio

• Coolant (40%) and distilled water (60%) for freeze protection down to -25 °C (-13 °F)
• Coolant (50%) and distilled water (50%) for freeze protection down to -36 °C (-32.8 °F)
• Use recommended Coolant

Fig 1: Identifying Coolant Drain Plug

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-- Close the drain plug -1-.

Vehicles with Transmission Fluid Heater 

Fig 2: Coolant Hoses For Transmission Fluid Heater

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-- Connect the coolant hoses with the hose clamps -1 and 2-.

Continuation for All Vehicles 

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

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-- Fill the Cooling System Charge Kit VAS6096 with 10 liters (10.5 quarts) of coolant in the correct mixture ratio, mixture ratio. Refer to Coolant Mixture Ratio .

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

-- Attach the Cooling System Charge Kit VAS6096 on the adapter 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 - V.A.G 1274/10 & V.A.G 1274/8

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-- Remove the plenum chamber cover. Refer to OVERVIEW - BULKHEAD .

-- Loosen the coolant hose to the heat exchanger and pull it back until the connection no longer covers the bleeder hole in the coolant hose -arrow-.

Fig 6: Locating Heat Exchanger Bleeder Hole

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

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

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

-- Close coolant reservoir cap.

-- Start the engine.

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

-- Press the AC  button to turn off the Air Conditioning (A/C) compressor.

• The LED in the button must not come on.

-- Run the engine at 2000 RPM for 3 minutes.

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

-- Run the engine at 2000 RPM for 2 minutes.

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

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