Coolant, Filling

WARNING: This page is about a different car, the 2014 Volkswagen Touareg, 2013 Volkswagen Touareg, 2012 Volkswagen Touareg, and 2011 Volkswagen Touareg. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

Only mix distilled water with coolant additives. Using distilled water provides optimum corrosion protection.

NOTE:

The mixture of the water used greatly influences the effectiveness of the coolant. The water quality to be used is based on the contents, which can be specific to a country or even a region. Distilled water fulfills all requirements. For this reason, distilled water must be used when adding coolant or filling coolant for the first time.

Use only coolant additives listed. Refer to the Parts Information. Other coolant additives may above all reduce the corrosion protection effect significantly. The damage resulting from this may lead to loss of coolant and consequently to severe engine damage.

Coolant with the correct mixture ratio prevents freezing and corrosion damage and calcium deposits. Additionally, the boiling temperature will be raised. For this reason the cooling system must be filled with coolant additive year-round.

Because of its high boiling point, the coolant contributes to engine reliability under heavy engine loads, particularly in countries with tropical climates.

The :T10007A MUST be used to determine the current freeze protection value.

Fig 1: Freeze Protection Value On Scale

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Freeze protection must be assured down to minimum -25 °C (-13 °F) (in arctic climatic countries down to approximately -36 °C (-32.8 °F)). The freeze protection may only be increased, when stronger freeze protection is needed due to the climate. But only down to -48 °C (-54 °F), otherwise the effectiveness of the coolant decreases.

The coolant concentration must not be reduced by adding water even in warmer seasons and in warmer countries. The frost protection must be at least -25 °C (-13 °F).

Read the freeze protection value on the scale for the coolant additive that has been added.

The temperature on the :T10007A corresponds to the >>freezing point<<. At this temperature, ice crystals may begin to form in the coolant.

Used coolant cannot be used again.

Only use water/coolant additive to lubricate the coolant hoses.

-- Fill the coolant reservoir on the :VAS6096 with at least 15 liters (15.85 quarts) of premixed coolant with the proper mixture ratio.

Coolant additive (40%) and distilled water (60%) for freeze protection down to -25 °C (-13 °F)
Coolant additive (50%) and distilled water (50%) for freeze protection down to -36 °C (-32.8 °F)
Coolant additive. Refer to the Parts Information.

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

Fig 2: Filling Coolant Reservoir Of Cooling System Charge Unit VAS 6096

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Secure the Cooling System Charge Kit:VAS6096 on the adapter :VAG1274/8 .

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

-- Place the drain hose -1- in a small container -2-.

NOTE:

A small amount of coolant which should be collected is drawn off with the discharged air.

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

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

-- Open the valve -B- by turning the lever in the flow direction.

Fig 3: Cooling System, Draining And Filling

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

At least 0.7 bar (10.15 psi) vacuum must be produced.

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

-- Close the valve -A- again.

-- Leave the valve -B- open another two minutes.

A further vacuum is created in the cooling system by the suction jet pump.

-- Close the valve -B-.

Fig 4: Cooling System, Draining And Filling

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove the pressure hose.

-- Watch the pressure gauge. The vacuum may go down only to 0.4 bar (5.8 psi). Check the coolant system for leaks if the vacuum continues to fall.

NOTE:

The cooling system does not have any leaks if the vacuum falls but then stabilizes at minimum 0.4 bar (5.8 psi).

Perform the next filling >>slowly<<.

-- Open the valve -A- slowly.

Fig 5: Cooling System, Draining And Filling

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

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.

-- Check the coolant level inside the reservoir. Fill or drain if necessary.

Fig 6: Checking Coolant Level

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Check the coolant freeze point. Refer to FILL QUALITY, CHECKING, HIGH TEMPERATURE CIRCUIT .