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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 543 (3.2L - Cooling System - Engine Code: CALA (Sedan)) >> 19 Cooling System >> Coolant Pipes >> Front Coolant Pipes, Removing And Installing >> Removing

Front Coolant Pipes, Removing And Installing: Removing

WARNING: This page is about a different car, the 2009 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Air Duct
GWWA10-10846Courtesy of AUDI OF AMERICA, LLC

-- Drain the coolant (refer to COOLANT, DRAINING AND FILLING ) 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 ribbed belt. Refer to RIBBED BELT, REMOVING AND INSTALLING .

Fig 2: Identifying Spanner Wrench 3212
GWWA13-10105Courtesy of AUDI OF AMERICA, LLC

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

-- Remove the left front wheel.

-- Remove the left front wheel housing liner. Refer to WHEEL HOUSING LINER .

WARNING:

Refrigerant can cause serious personal injury.

  • Do not open the A/C system refrigerant circuit.
CAUTION:

Danger of causing damage to the refrigerant lines and hoses.

  • Do not bend, twist or stretch the refrigerant lines and hoses.

-- Remove the bolts -arrows- and remove the A/C compressor from the bracket and lay it aside.

Fig 3: Connector For Wiring To Air Conditioning Compressor Clutch Solenoid & Compressor Mounting Bolts
GWWA10-10118Courtesy of AUDI OF AMERICA, LLC
NOTE:

Ignore -item 1-.

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

Fig 4: Locating Hose Clamp And Remove Left Coolant Pipe Bolts
GWWA19-10568Courtesy of AUDI OF AMERICA, LLC

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

-- Vehicles with secondary air system, remove the front secondary air hose -arrow- from its bracket and disconnect it; do to so press the release buttons.

Fig 5: Identifying Front Air Hose -Arrow
GWWA26-10731Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -3- for the Engine Coolant Temperature Sensor -G62-.

Fig 6: Disconnect Electrical Connector For Engine Coolant Temperature ECT Sensor
GWWA19-10594Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -1, 2, 4 and 5-.

-- Remove the front coolant pipe from coolant hoses -arrows-.