Auxiliary Water Pump: Service and Repair

Replacing the water pump for the engine coolant heater

As the illustrations in this service information are used for different model years and / or models, some variation may occur. However, the essential information in the illustrations is always correct.

Preparations

Remove:
- the air baffles
- the bumper cover. See(S80), Casing, bumper front, replacing Service and Repair (V70), Casing, bumper front, replacing Service and Repair (V70XC)or Casing, bumper front, replacing Service and Repair (S60)
- the control module. See Control module engine coolant heater, replacing Service and Repair. Allow the cable harness to remain on the control module.

Removing the water pump for the engine coolant heater




Install hose clips on both the engine coolant hoses by the heat exchanger.
Position a container under the heater.
Disconnect the hoses.




Cut off the tie strap holding the protective cap over the control module. Lift off the protective cap.

Remove:
- the connector
- the nut for the water pump mounting. Hold the damper while removing the water pump.

Note! Note the position of the water pump on the holder.

Installing the water pump for the engine coolant heater
Position the water pump (according to the noted position) in the shutter using the shaped hoses.

Install:
- the water pump mounting using a nut (1xM6). Tighten to 3 Nm
- the connector
- the protective cap
- a new tie strap.
Tighten the hose clamps for both the engine coolant hoses.
Install the control module. See Control module engine coolant heater, replacing Service and Repair.

Final check

Note! Start the engine and let it idle for a few seconds before starting the heater.

Test run the heater. Check the function of the heater. See Engine coolant heater, test running Component Tests and General Diagnostics.
Check for leakage in the engine coolant hoses or fuel lines.
Top up the coolant if necessary.
Check that no diagnostic trouble codes (DTC) have been stored during the repair work.

Install:
- the bumper cover. See(S80), Casing, bumper front, replacing Service and Repair (V70), Casing, bumper front, replacing Service and Repair (V70XC)or Casing, bumper front, replacing Service and Repair (S60)
- the air baffle.