Coolant, Draining And Filling: Procedure

WARNING: This page is about a different car, the 2012 Audi S5, 2011 Audi S5, 2010 Audi S5, 2009 Audi S5, and 2008 Audi S5. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Drain Plug -Arrow- On Map Controlled Engine Cooling Thermostat -F265-

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-- Install the drain plug -arrow- with a new O-ring on the Map Controlled Engine Cooling Thermostat -F265-.

-- Install the front coolant pipe drain plug -arrow- with a new seal.

Fig 2: Identifying Drain Plug -Arrow- On Front Coolant Hose

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-- Fill the coolant reservoir of the :VAS6096 with 15 liters (15.8 qts) 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 :VAG1274/8 on the coolant expansion tank.

-- Attach the :VAS6096 on the :VAG1274/8 .

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

NOTE:

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

-- 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) 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 :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.

NOTE:

If needle stands below the green area, repeat procedure.

If pressure falls, check coolant system for leaks.

-- Remove Pressurized Air Hose.

-- Open 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.

-- Connect the :VAG1274/10 to the :VAG1274/8 .

Fig 5: Identifying Special Tools - V.A.G 1274/10 & V.A.G 1274/8

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-- Remove the center piece -2- or the entire plenum chamber cover, depending on the version. Refer to PLENUM CHAMBER COVER, REMOVING AND INSTALLING .

Fig 6: Identifying Alarm Horn, Removal

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-- 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 7: Locating Heat Exchanger Bleeder Hole

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

-- 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 Light Emitting Diode (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 engine at 2000 RPM for 1 minute.

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

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