Page 2761 of 3051
SLC252B
INSPECTIONNLLC00601. Check valve seating condition at ordinary room temperatures.
It should seat tightly.
2. Check valve opening temperature and maximum valve lift.
Standard
Valve opening temperature Above 80 - 84ÉC (176 - 183ÉF)
Valve lift More than 10 mm/95ÉC
(0.39 in/203ÉF)
3. Then check if valve closes at 5ÉC (9ÉF) below valve opening
temperature.
Radiator
COMPONENTSNLLC0083
NLC094
ENGINE COOLING SYSTEMYD
Thermostat (Cont'd)
LC-58
Page 2762 of 3051

REMOVAL AND INSTALLATIONNLLC00631. Remove under cover.
2. Drain coolant by removing lower radiator hose.
3. Disconnect radiator upper and lower hoses.
4. Remove radiator shroud.
5. Disconnect reservoir tank hose.
6. Remove radiator mounting bracket.
7. Remove radiator.
8. After repairing or replacing radiator, install any part removed in reverse order of removal.
When filling radiator with coolant, refer to LC-59, ªChanging Engine Coolantº.
Cooling FanNLLC0064COMPONENTSNLLC0064S01
NLC095
CONTROL SYSTEMNLLC0064S02Cooling fans are controlled by ECM. For details, refer to EC-1203,
ªTROUBLE DIAGNOSIS FOR OVERHEATº.
JLC295B
Changing Engine CoolantNLLC0079WARNING:
To avoid the danger of being scalded, never change the cool-
ant when the engine is hot.
Ð DRAINING ENGINE COOLANT ÐNLLC0079S011. Set air conditioning system as follows to prevent coolant from
remaining in the system.
a. Turn ignition switch ON and set temperature controller to maxi-
mum hot position.
b. Wait 10 seconds before turning ignition switch OFF.
ENGINE COOLING SYSTEMYD
Radiator (Cont'd)
LC-59
Page 2763 of 3051

SMA033D
2. Remove lower radiator hose, and remove radiator filler cap to
drain coolant.
3. Remove reservoir tank, drain coolant, then clean reservoir
tank.
+Be careful not to allow coolant to contact drive belts.
4. Cover the exhaust tube heat shield to prevent from splashing
coolant.
YLC013
SLC341B
5. Remove drain plug of cylinder block and air relief plug.
6. Check drained coolant for contaminants such as rust, corro-
sion or discoloration. If contaminated flush engine cooling
system, refer to LC-61, ªFLUSHING COOLING SYSTEMº.
7. Blow the coolant around the exhaust tube heat shield.
JLC298B
Ð REFILLING ENGINE COOLANT ÐNLLC0079S021. Install reservoir tank, lower radiator hose and cylinder block
drain plug.
+Apply sealant to the thread of cylinder block drain plugs.
:8-11N´m(0.8 - 1.2 kg-m, 70 - 104 in-lb)
2. Fill radiator slowly with coolant until coolant spills from the air
relief plugs, then install air relief plugs.
+Location of air relief plugs
Water inlet (where fitted) and rear side intake manifold water
tubes
+Fill coolant to the level of the radiator cap at a rate of 2!(1-3/4
Imp qt)/min or lower.
(Close the plugs in order starting with the location from where
the coolant began spilling out.)
CAUTION:
If the filling rate is too fast, this could lead to air being mixed
in the coolant. Be sure to fill the coolant slowly according to
the rate indicated above.
+Replace the copper washer of the air bleeding plug.
Air relief plug:
: 6.7 - 7.9 N´m (0.68 - 0.81 kg-m, 59 - 70 in-lb)
+Use genuine Nissan anti-freeze coolant or equivalent.
ENGINE COOLING SYSTEMYD
Changing Engine Coolant (Cont'd)
LC-60
Page 2764 of 3051

SMA182B
SMA412B
Refer to MA-20, ªRECOMMENDED FLUIDS AND LUBRI-
CANTSº.
Engine coolant capacity (With reservoir tank):
7.05!(6±1/4 Imp qt)
Reservoir tank capacity:
0.7!(5/8 Imp qt)
+Pour coolant through coolant filler neck slowly to allow air
in system to escape.
3. Fill radiator and reservoir tank to specified level.
4. Warm up engine to normal operating temperature without
radiator cap installed.
+If coolant overflows radiator filler hole, install radiator cap.
5. Run engine at 3,000 rpm for 10 seconds and return to idle
speed with radiator cap installed.
+Repeat two or three times.
Watch coolant temperature gauge so as not to overheat the
engine.
6. Stop engine and cool it down.
+Cool down using a fan to reduce the time.
+If necessary, refill radiator up to filler neck with coolant.
7. Refill reservoir tank to MAX level line with coolant.
8. Repeat steps 4 through 7 two or more times with radiator cap
installed until coolant level no longer drops.
9. Check cooling system for leaks with engine running.
10. Warm up engine, and check for sound of coolant flow while
running engine from idle up to 3,000 rpm with heater tempera-
ture controller set at several positions between COOL and
HOT.
+Sound may be noticeable at heater water cock.
11. If sound is heard, bleed air from cooling system by repeating
steps 4 through 7 until coolant level no longer drops
+Clean excess coolant from engine.
Ð FLUSHING COOLING SYSTEM ÐNLLC0079S031. Open air relief plug.
2. Fill radiator with water until water spills from the air relief hole,
then close air relief plug. Fill radiator and reservoir tank with
water and reinstall radiator cap.
3. Run engine and warm it up to normal operating temperature.
4. Rev engine two or three times under no-load.
5. Stop engine and wait until it cools down.
6. Drain water.
7. Repeat steps 1 through 6 until clear water begins to drain from
radiator.
ENGINE COOLING SYSTEMYD
Changing Engine Coolant (Cont'd)
LC-61
Page 2765 of 3051
Overheating Cause AnalysisNLLC0070
Symptom Check items
Cooling sys-
tem parts
malfunctionPoor heat transferWater pump malfunction Worn or loose drive belt
Ð Thermostat stuck closed Ð
Damaged finsDust contamination or
paper clogging
Mechanical damage
Clogged radiator cooling
tubeExcess foreign material
(rust, dirt, sand, etc.)
Reduced air flowCooling fan does not oper-
ate
ÐÐ High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud Ð Ð Ð
Improper coolant mixture
ratioÐÐÐ
Poor coolant quality Ð Ð Ð
Insufficient coolantCoolant leaksCooling hoseLoose clamp
Cracked hose
Water pump Poor sealing
Radiator capLoose
Poor sealing
RadiatorO-ring for damage, dete-
rioration or improper fit-
ting
Cracked radiator tank
Cracked radiator core
Reservoir tank Cracked reservoir tank
Overflowing reservoir tankExhaust gas leaks into
cooling systemCylinder head deteriora-
tion
Cylinder head gasket
deterioration
ENGINE COOLING SYSTEMYD
Overheating Cause Analysis
LC-62
Page 2766 of 3051

Symptom Check items
Except cool-
ing system
parts mal-
functionÐ Overload on engineAbusive drivingHigh engine rpm under
no load
Driving in low gear for
extended time
Driving at extremely high
speed
Powertrain system malfunc-
tion
Ð Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flowBlocked bumper Ð
Ð Blocked radiator grilleInstalled car brassiere
Mud contamination or
paper clogging
Blocked radiator Ð
Blocked condenser
Ð
Installed large fog lamp
Service Data and Specifications (SDS)
THERMOSTATNLLC0071
Valve opening temperature Above 80 - 84ÉC (176 - 183ÉF)
Valve liftMore than 10 mm/95ÉC (0.394 in/203ÉF)
RADIATORNLLC0073Unit: kPa (bar, kg/cm2, psi)
Cap relief pressureStandard 78 - 98 (0.78 - 0.98, 0.8 - 1.0, 11 - 14)
Limit 59 - 98 (0.59 - 0.98, 0.6 - 1.0,9-14)
Leakage test pressure157 (1.57, 1.6, 23)
ENGINE COOLANT CAPACITYNLLC0080Unit:!(Imp qt)
With reservoir tank7.05 (6-1/4)
Reservoir tank0.7 (5/8)
ENGINE COOLING SYSTEMYD
Overheating Cause Analysis (Cont'd)
LC-63
Page 2767 of 3051
ENGINE COOLING SYSTEM
Service Data and Specifications (SDS) (Cont'd)
LC-64
Page 2768 of 3051

MAINTENANCE
SECTION
MA
CONTENTS
PRE-DELIVERY INSPECTION ITEMS............................2
GENERAL MAINTENANCE............................................3
PERIODIC MAINTENANCE (EXCEPT FOR
EUROPE).........................................................................4
Engine and Emission Control Maintenance
(QG18DE/SR20DE engine) .........................................4
Engine Maintenance (YD22DDTi engine) ...................6
Chassis and Body Maintenance ..................................7
Maintenance Under Severe Driving Conditions ..........8
SEVERE DRIVING CONDITIONS................................8
PERIODIC MAINTENANCE............................................9
Maintenance Schedule for Petrol Engines
(Annual Mileage < 30,000 km/year) ............................9
QG18DE/SR20DE ENGINES......................................9
CHASSIS AND BODY MAINTENANCE......................10
Maintenance Schedule for Diesel Engines
(Annual Mileage < 30,000 km/year) .......................... 11
YD22DDTI ENGINE.................................................. 11
CHASSIS AND BODY MAINTENANCE......................12Maintenance Under Severe Driving Conditions
(Annual Driving Distance < 30,000 km/year) ............13
Maintenance Schedule for Petrol Engines
(Annual Mileage > 30,000 km/year) ..........................15
QG18DE/SR20DE ENGINES....................................15
CHASSIS AND BODY MAINTENANCE......................16
Maintenance Schedule for Diesel Engines
(Annual Mileage > 30,000 km/year) ..........................17
YD22DDTI ENGINE..................................................17
CHASSIS AND BODY MAINTENANCE......................18
Maintenance Under Severe Driving Conditions
(Annual Driving Distance > 30,000 km/year) ............19
RECOMMENDED FLUIDS AND LUBRICANTS...........20
Fluids and Lubricants ................................................20
SAE Viscosity Number ..............................................21
GASOLINE ENGINE.................................................21
DIESEL ENGINE......................................................21
Engine Coolant Mixture Ratio....................................22