Front Coolant Pipes, Removing And Installing: Removing

WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2017 Audi S5, 2016 Audi S5, 2016 Audi S4, 2015 Audi S5, and 2015 Audi S4. 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 DRAINING ) or remove the After-Run Coolant Pump -V51- if equipped. Refer to After-Run Coolant Pump -V51-, REMOVING AND INSTALLING .

-- Remove the air duct -arrows-.

-- Remove the front left coolant pipes. Refer to FRONT LEFT COOLANT PIPES, REMOVING AND INSTALLING .

-- Removing the ribbed belt:

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

Fig 2: Identifying Vacuum Pump Bolts

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-- Remove the bolts for the coolant pump ribbed belt pulley by counterholding with a Wrench - Pin Type 3212.

Fig 3: Identifying Coolant Pump Ribbed Belt Pulley And Counterhold Tool

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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 A/C system refrigerant circuit.

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

CAUTION:

Danger of damaging the refrigerant lines and hoses.

Do not bend, twist or stretch the 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-.

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

Fig 5: Removing Left Coolant Pipe Bolts

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-- Remove the bolt -arrow- and remove the front left 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 Sensor -G62-.

-- 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.

Fig 7: Identifying Front Coolant Pipe And ECT Sensor

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