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M161 ENGINE COOLING 1D2-13
Removal & Installation Procedure
1. Drain the coolant.
2. Remove the de-aeration hose (4), coolant outlet hose (5) and coolant bypass hose (6).
3. Disconnect the coolant temperature sensor connector.
4. Unscrew the bolt (1c) and pry off the tensioning device shock absorber (7).Installation Notice
6. Replace the O-ring with new one.
7. Installation should follow the removal procedure in the reverse order.
8. Check for leaks in cooling system.
5. Unscrow the bolts (1a, 1b) and remove the engine
hanger bracket and thermostat housing.Installation Notice
Tightening Torque 9 - 11 Nm
22.5 - 27.5 Nm
(1a) (1b)
Tightening Torque 22.5 - 27.5 Nm
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1D2-16 M161 ENGINE COOLING Removal & Installation Procedure1. Drain coolant from the radiator.
2. Remove the coolant thermo connector from the radiator.
3. Remove the each coolant hoses.
Tightening Torque 14 Nm
4. Remove the automatic transmission oil cooling hose.
Installation Notice
5. Unscrew the bolts from radiator bracket and remove the bracket and insulator. Installation Notice
Tightening Torque 3 - 7 Nm
6. Remove the radiator upper mounting bolts and then remove the bracket and insulator.
7. Remove the radiator.
8. Check the radiator pin for crack, damage, leakage and bending and replace if necessary.
9. Installation should follow the removal procedure in the reverse order.
10. Berform the cooling system leakage test.
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1D3-4 OM600 ENGINE COOLING
COOLING SYSTEM LEAKAGE TEST
Tools Required
124 589 15 21 00 Tester
Test
1. Loosen the pressure cap by 1 notch and remove the capafter. Notice Do not remove radiator cap when coolant is above 90 °C.
2. Add the coolant to the arrow mark of coolant reservoir.
3. Connect the special tool to the injector of reservoir and apply 1.4bar pressure. Tester 124 589 15 21 00
4. If the pressure on the tester drops, check the hose, pipe and leakage and, replace or retighten.
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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 removepressure 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
A 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
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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 Torque Hose : 29 - 40Nm
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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
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M162 ENGINE ELECTRICAL 1E1-11
Circuit Diagram
Inspection & Maintenance Procedure (for MSE)
1. While the ignition switch is in 'OFF' position, remove thewiring connectors (1 and 15) from ignition coil and measure the primary resistance between terminal No.1 and No.15.
2. During engine cranking, measure primary voltage (T1/1) between ECU terminal No. 71 and No. 69.
Notice If out of specified value, replace the ignition coil.
Specified Value
0.9 - 1.6 (20 °C)
Specified Value 200 - 350 V
Notice
Measure remaining cables.
- T1/2 : No. 72 and 69.
- T1/3 : No. 70 and 69.
If out of specified value, check ignition cable and ECU.
3. Using a multi-tester, measure the secondary coil resistance between 5a and 5b.
Specified Value 6 - 8.5 k
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