Page 526 of 1463
OM600 ENGINE COOLING 1D3-5
DRAIN AND FILLING OF COOLANT
Preceding Work : Removal of skid plate
Drain / Filling
1. Loosen the pressure cap of reservoir by 1 notch and remove
pressure and then loosen the cap.
Notice
Do not remove radiator cap when coolant is above 90°C.
2. Open the drain plug and drain the coolant.
Notice
Collect the coolant by using the proper bottle.
3. Remove the drain plug(1) and seal(2) of cylinder block and
drain the coolant.
4. Replace the seal to new one and tighten the drain plug
Installation Notice
Tightening Torque 30 Nm
5. Tighten the drain plug of the lower radiator.
6. Fill the coolant through coolant reservoir-tank.
Notice
lA proportion of 50% by volume of water / anticorrosion
must be ensured
7. After engine is running at idle speed, check the level of
coolant. If necessary, add enough specified coolant.
MAINTENANCE AND REPAIR
ON-VEHICLE SERVICE
Page 527 of 1463
1D3-6 OM600 ENGINE COOLING
COOLANT PUMP
Preceding Work : Removal of cooling fan
Removal of V-belt
1 Tensioning Lever
2 Gasket ................................................... Replace
3 Bolt........................................................... 10 Nm4 Belt Pulley
5 Bolt........................................................... 10 Nm
6 Coolant Pump
Page 528 of 1463
OM600 ENGINE COOLING 1D3-7
Removal & Installation Procedure
1. Loose the bolts(5) and remove the pulley (4).
Installation Notice
Tightening Torque 10 Nm
2. Loose the bolts (3).
Installation Notice
Tightening Torque 10 Nm
3. Pull the tensioning lever(1) to the arrow direction.
4. Remove the coolant pump(6).
Notice
Clean gasket residues on the sealing surface of coolant
pump and replace the gasket.
5. Installation should follow the removal procedure in the
reverse order.
Page 529 of 1463
1D3-8 OM600 ENGINE COOLING
COOLANT PUMP HOUSING
Preceding Work : Removal of coolant pump
Removal of thermostat
Removal of alternator
1 Gasket ................................................... Replace
2 Coolant Pump Housing
3 Connector
4 Bolt........................................................... 10 Nm5 Coolant Hose
6 Return Pipe
7 O-Ring
8 Temperature Sensor
Notice
The bolt on the arrow should be installed last.
Page 530 of 1463
OM600 ENGINE COOLING 1D3-9
Removal & Installation Procedure
1. Disconnect the connector(3).
2. Separate the coolant hose (5) and return pipe(6).
3. Remove the bolts(4) evenly.
Installation Notice
Tightening Torque 10 Nm
Notice
Clean gasket residues on the sealing surface of coolant
pump and replace the gasket.
4. Remove the coolant pump housing(2).
5. Installation should follow the removal procedure in the
reverse order.
Page 534 of 1463
OM600 ENGINE COOLING 1D3-13
Removal & Installation Procedure
1. Drain coolant from the radiator.
2. Remove the coolant thermoswich connector from radiator.
3. Remove the each coolant hose.
4. Remove the auto T/M oil cooling hose and cooling line.
Installation Notice
5. Loosen the radiator upper mounting bolt and remove the
mounting stopper and insulator.
6. Remove the radiator.
7. Check the radiator pin for crack, leakage and bending and
replace it if necessany.
8. Installation should follow the removal procedure in the
reverse order.
Tightening TorqueHose : 29 - 40Nm
Page 536 of 1463
OM600 ENGINE COOLING 1D3-15
Removal & Installation Procedure
Cooling Fan Shroud
1. Remove the radiator deaeration hose and tube.
Installation Notice
Tightening Torque 3 - 7 Nm
Tightening torque 3-7Nm
2. Check the shroud.
3. Installation should follow the removal procedure in the
reverse order.
Coolant Sub-Tank
1. Drain the coolant from radiator.
2. Remove the each hose.
3. Loosen the mounting bolt of sub-tank and remove the
coolant sub-tank.
Installation Notice
4. Installation should follow the removal procedure in the
reverse order.
Tightening Torque 3 - 7 Nm
Page 537 of 1463
1D3-16 OM600 ENGINE COOLING
THERMOSTAT
1 Thermostat
2 Seal....................................................... Replace
3 Thermostat Housing Cover4 Coolant Hose
5 Bolt............................................................10Nm