Engine Coolant Heater, Replacing

Engine coolant heater, replacing

Special tools:
951 2619 Pliers 951 2619 Pliers

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 battery lead. See Battery, disconnecting Battery Disconnecting.

Remove:
- 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 two upper screws (as illustrated) and the center screw on the left hand slide mounting
- the left air baffle.

Removing the engine coolant heater




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

Remove:
- the hoses.




- the connection to the fuel hose from above. Plug the pipe because of the risk of fuel spillage.

Hint: Use special tool 951 2619 Pliers 951 2619 Pliers (Oetiker pliers) to remove and to fasten the clamps.

Hint: Tape or hang the fuel hose on the side member.

Disconnect the connector from above. Angle out the sliding mount for proper access.




Slacken off the mounting nut from the upper edge of the heater.
Remove the two screws for the bracket. Unhook the heater from the upper mounting.

Installing the engine coolant heater




Hook the heater in the bracket and the upper mounting. Install two screws in the bracket.

Install:
- the nut in the upper mounting (as illustrated)
- the connector.




- the hoses
- the fuel line.

Final check




Test run the heater. Check the function of the heater. See Engine coolant heater, test running Engine Coolant Heater, Test Running.
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 two upper screws (as illustrated) and the center screw on the left hand slide mounting
- 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.