Front Coolant Pipe: Removing

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

Fig 1: Identifying Air Duct

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-- Drain the coolant. Refer to COOLANT, DRAINING AND FILLING remove the after-run coolant pump -V51-, refer to AFTER-RUN COOLANT PUMP -V51- .

-- Remove the air duct -arrows-.

-- Remove the front left coolant pipes. Refer to LEFT FRONT COOLANT PIPES .

-- Removing the ribbed belt:

-- Remove vacuum pump. Refer to VACUUM PUMP, REMOVING AND INSTALLING .

Fig 2: Identifying Vacuum Pump

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-- Remove the bolts for the coolant pump ribbed belt pulley, using a 3212 to counter hold.

Fig 3: Identifying Coolant Pump Ribbed Belt Pulley Bolts -Arrows- Removal With 3212 To Counterhold.

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-- Remove the ribbed belt pulley.

-- Disconnect the connector -1- for the wiring leading to the Air Conditioning (A/C) compressor clutch solenoid.

Fig 4: Disconnecting Connector For Wiring To Air Conditioning Compressor Clutch Solenoid

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WARNING:

Refrigerant can cause serious personal injury.

Do not open the air conditioning refrigerant circuit.

-- Remove A/C compressor bolts -arrows-.

CAUTION:

Danger of damaging the refrigerant lines and hoses.

Do not stretch, kink or bend refrigerant lines and hoses.

-- Remove the A/C compressor from the bracket and move it to the side with the lines still connected.

-- Loosen the hose clamp -3- and remove the left coolant pipe bolts -1 and 2-.

Fig 5: Loosening Hose Clamp To Remove Left Coolant Pipe Bolts

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-- Tip the coolant pump to the left slightly -arrow- and remove it from the upper coolant pipe.

-- Remove the bolt -arrow- and remove the left front coolant pipe bracket.

Fig 6: Identifying Bolt And Left Front Coolant Pipe Bracket

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-- Disconnect the connector -3- from the Engine Coolant Temperature (ECT) sensor -G62-.

Fig 7: Disconnecting Engine Coolant Temperature Sensor Connector

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-- Open the clamps and remove the coolant hoses -1 and 4-.

-- Loosen the clamp -2- and remove the upper coolant hose.

-- Loosen the hose clamp -5-.

-- Remove the bolts -arrows- and the front coolant pipe.