Coolant Pump

Removing

-- Remove small coolant pipe. Refer to SMALL COOLANT PIPE .

-- Remove the coolant pump toothed belt. Refer to COOLANT PUMP TOOTHED BELT .

-- Disconnect electrical connector -1- on throttle valve control module -J338-.

Fig 1: Identifying Throttle Valve Control Module Electrical Connector And Bolts

Courtesy of AUDI OF AMERICA, LLC

-- Remove bolts -arrows- and remove throttle valve control module.

-- Disconnect the connector -1- from the Engine Coolant Temperature (ECT) sensor -G62-.

Fig 2: Engine Coolant Temperature Sensor G62 Electrical Connector

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Ignore -2 and arrows-.

-- Remove the bolts -1 to 5-.

Fig 3: Coolant Pump Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC

-- Remove the coolant pump from the centering pin and remove the engine oil cooler.

NOTE:

Ignore -arrow-.

Installing

Installation is carried out in the reverse order while noting the following:

NOTE:

Replace the seals and the O-rings.

-- Coat the O-rings -4- with coolant.

Fig 4: Accessory Assembly Bracket, Coolant Pump Housing, Connection And O-Rings

Courtesy of AUDI OF AMERICA, LLC

-- Make sure both centering pins are installed in the cylinder block.

-- Install the connection piece -2- into the engine oil cooler -1-.

-- Push the coolant pump -3- onto the connection piece and onto the centering pins in the cylinder block.

-- Tighten bolts -1 to 5-.

Fig 5: Coolant Pump Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC

NOTE:

If a new coolant pump was installed, then the protective cap -arrow- must be removed.

-- Install the coolant pump toothed belt. Refer to COOLANT PUMP TOOTHED BELT .

-- Install throttle valve control module. Refer to Removal and Installation .

-- Install the small coolant pipe. Refer to SMALL COOLANT PIPE .

-- Install the after-run coolant pump -V51- After-Run Coolant Pump -V51- .

-- Fill coolant system. Refer to COOLANT, DRAINING AND FILLING .