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D AEW OO M Y_2000
SECTION 1D1
M162 ENGINE COOLING
CAUTION: Disconnect the negative battery cable before removing or installing any electrical unit or when a
tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable
will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless other -
wise noted.
TABLE OF CONTENTS
Specifications 1D1 -- 2............................
General Specifications 1D1-- 2....................
Fastener Tightening Specifications 1D1 -- 2..........
Special Tools 1D1 -- 3.............................
Special Tools Table 1D1-- 3.......................
Diagnosis 1D1 -- 4.................................
System Leakage Test 1D1-- 4.....................
Maintenance and Repair 1D1 -- 5...................
On-- Vehicle Service 1D1-- 5.........................Coolant Drain and Fill Up 1D1 -- 5..................
Coolant Connection Fitting 1D1 -- 7.................
Wat er Pum p 1D1 -- 8.............................
Thermostat 1D1 -- 10.............................
Oil Cooler Pipe Line 1D1 -- 11.....................
Cooling Fan and Viscous Clutch 1D1 -- 12...........
Cooling Fan Shroud 1D1 -- 14.....................
Radiator 1D1-- 15................................
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1D1 -- 2 M162 ENGINE COOLING
D AEW OO M Y_2000
SPECIFICATIONS
GENERAL SPECIFICATIONS
ApplicationDescription
Cooling TypeWater Cooling Forced Circulation
RadiatorCirculation TypeDouble Cross Flow
Radiation Capability70,000 kcal/h
Dimension(Width x Height x Thickeness)580 x 482 x 45 mm
Cooling Fanφ460, Six Blades
Anti-- Freeze AgentALUTEC -- P78
Mixing Ratio of Anti-- Freeze Agen with Water (Anti-- Freeze Agent : Water)50 : 50
Coolant Capacity11. 3 L
Reservoir Capacity3.4 L
Cap Operating Pressure (Reservoir Tank Pressure Cap)1.4 bar
FASTENER TIGHTENING SPECIFICATIONS
ApplicationNSmLb-FtLb-In
Coolant Drain Plug3022--
Engine Hanger Bracket and Coolant Outlet
Port Bolt22.5 -- 27.516.6 -- 20.3--
Thermostat Cover Bracket Bolts9--11--80 -- 97
Oil Cooler Pipe Line Bolts9--11--80 -- 97
Cooling Fan Bolts9--11--80 -- 97
Viscous Clutch Mounting Bolts40.5 -- 49.529.8 -- 36.5--
Automatic Transmission Fluid Cooler Pipe2015--
Cooling Fan Shroud Bolts3--7--27 -- 62
Automatic Transmission Radiator Tube
Assembly Mounting Bolt7--62
Radiator Bracket Mounting Bolts3--7--27 -- 62
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1D1 -- 4 M162 ENGINE COOLING
D AEW OO M Y_2000
DIAGNOSIS
SYSTEM LEAKAGE TEST
Tools Required
124 589 15 21 00 Tester
Test Procedure
1. Loosen the cap a little and release pressure and re-
move the cap.
Notice:For the risk of scalding, cap must not be opened
unless the coolant temperature is below 90°C.
2. Fill coolant up to upper edge (arrow) of reservoir.
3. Connect the special tool to the reservoir filler cap and
apply 1.4 bar of pressure.
Tester 124 589 15 21 00
4. If the pressure on the tester drops, check leakage at
the all coolant hoses and pipes and each connec-
tions. Replace or retighten if necessary.
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M162 ENGINE COOLING 1D1 -- 5
D AEW OO M Y_2000
MAINTENANCE AND REPAIR
ON-VEHICLE SERVICE
COOLANT DRAIN AND FILL UP
Draning & Filling up Procedure
1. Loosen the cap a little and release pressure and re-
move the cap.
Notice:For the risk of scalding, the cap must not be
opened unless the coolant temperature is below 90°C.
2. Loosen the radiator lower drain cock and drain the
coolant.
Notice:Collect the coolant by using a proper container.
3. Drain the coolant from the crankcase by inserting a
hose (dia. 14mm) onto the drain bolt on the side of
crankcase (exhaust manifold) and by loosening the
plug.
Notice
DJust loosen the drain plug to drain the coolant and do
not remove the plug completely.
DCollect the coolant by using the proper container.
4. After complete draining of the coolant, remove the
hose connector to drain plug and reinstall the drain
plug.
Installation Notice
Tightening Torque
30 NSm (22 lb-ft)
5. Tighten the radiator lower drain cock.
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1D1 -- 6 M162 ENGINE COOLING
D AEW OO M Y_2000
6. Remove the de-- aeration hose clamp in the coolant
pump and remove the de-- aeration hose.
7. Fill up the coolant through the coolant reservoir
tank.
Notice
DMatchtheanti--freezeandthewaterratioto50:50.
DSupplement the coolant until the coolant overflows to
the deaeration hose.
8. Insert the de--aeration hose and completely tighten
the clamp.
9. Check the coolant level in the coolant reservoir tank.
10. Warm up(until thermostat is opened) the engine and
recheck the coolant level in the reservoir tank and fill
up the coolant if necessary.
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M162 ENGINE COOLING 1D1 -- 7
D AEW OO M Y_2000
COOLANT CONNECTION FITTING
Preceding Work: Removal of cooling fan shroud
1 Bolt (M8 X 100, 2 pieces)
22.5-- 27.5 NSm (16.6-- 20.3 lb-ft) .............
2 Engine Hanger Bracket
3 Coolant Outlet Port4O--ring
5 Hose Mounting Clamp
6Hose
Removal & Installation Procedure
1. Drain coolant from the radiator.
2. Remove the hose mounting clamp (5) and disconnect
the coolant hose (6).
3. Remove the two bolts (1), the engine hanger bracket
(2) and coolant outlet port (3).
Installation Notice
Tightening Torque
22.5 -- 27.5 NSm
(16.6 -- 20.3 lb-ft)
Replace the O -- ring with new one.
4. Installation should follow the removal procedure in
the reverse order.
5. Fill up the coolant as specified.
6. Check the leaks in the cooling system.
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1D1 -- 8 M162 ENGINE COOLING
D AEW OO M Y_2000
WAT E R P U M P
Preceding Work: Removal of V-- belt
Removal of air admission housing
1 Air Admission Housing
2 Oil Cooler Pipe Line
3 Seal Replace..............................
4Bolt 9--11NSm (80-- 97 lb-in) .................
5 Coolant Hose
6 Coolant Hose
7 Outlet Coolant Hose8 Coolant Hose
9 Inlet Coolant Hose
10 Water Pump
11 Bolt 21 NSm (15 lb-ft) ......................
12 Dowel Sleeve
13 Seal Replace..............................
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M162 ENGINE COOLING 1D1 -- 9
D AEW OO M Y_2000
Removal & Installation Procedure
1. Drain the coolant.
2. Disconnect the water pump wire connector.
3. Loosen the hose clip and dsconnect all hoses from
the water pump.
4. Remove the oil cooler pipe line bolts (4) and then re-
move the coolant line (2).
Installation Notice
Tightening Torque
9--11NSm (80 -- 97 lb-in)
Notice:Replace the seal (3).
5. Remove the mounting bolts (11) and carefully pull out
water pump (10).
Installation Notice
Tightening Torque
21 NSm (15 lb-ft)
Notice:Replace the seal (13).
6. Installation should follow the removal procedure in
the reverse order.
7. Fill up coolant.
8. Do coolant system leakage test.