Coolant Pump

Coolant Pump

Removing

- Remove the small coolant pipe. Refer to => [ Small Coolant Pipe ] Small Coolant Pipe.

- Disconnect the electrical connector - 1 - from the throttle valve control module (J338).






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

- Remove the coolant pump toothed belt. Refer to => [ Coolant Pump Toothed Belt ] Coolant Pump Toothed Belt.

- Remove the nut - 1 -, bolt - 2 - and intake manifold support.






- Remove the bonded rubber bushing for the intake manifold support on the intake manifold.

- Remove the engine coolant temperature sensor (G62).

Inserted version, refer to => [ Engine Coolant Temperature (ECT) Sensor with Clip ] Service and Repair.

Threaded version, refer to => [ ECT Sensor with a Retaining Plate ] Service and Repair.

- Remove the bolts - 1 through 5 -.






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

Installing

• Replace the gaskets and O-rings.

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






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

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

- First slide the coolant pump - 3 - onto the connecting piece and then onto the centering pins in the cylinder block.

- Using a mirror, check if the coolant pump is seated correctly on the centering pins.

- Tighten the bolts in sequence - 1 through 5 -.






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

The rest of the installation follows the reverse of the removal procedures.