
Overall Function Check
Use this procedure to check the overall function of the cooling
fan. During this check, a DTC might not be confirmed.
WARNING:
Never remove the radiator cap when the engine is hot. Seri-
ous burns could be caused by high pressure fluid escaping
from the radiator.
Wrap a thick cloth around the cap. Carefully remove the cap
by turning it a quarter turn to allow built-up pressure to
escape. Then turn the cap all the way off.
WITH CONSULT-II
1) Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is
below the proper range, skip the following steps and go to
ªDiagnostic Procedureº, EC-1109.
2) Confirm whether customer filled the coolant or not. If cus-
tomer filled the coolant, skip the following steps and go to
ªDiagnostic Procedureº, EC-1109.
3) Turn ignition switch ªONº.
4) Perform ªCOOLING FANº in ªACTIVE TESTº mode with
CONSULT-II and make sure that cooling fans operate when
touching ªHIGHº or ªLOWº.
If NG, go to ªDiagnostic Procedureº, EC-1109.
WITHOUT CONSULT-II
1) Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is
below the proper range, skip the following steps and go to
ªDiagnostic Procedureº, EC-1109.
2) Confirm whether customer filled the coolant or not. If cus-
tomer filled the coolant, skip the following steps and go to
ªDiagnostic Procedureº, EC-1109.
3) Disconnect engine coolant temperature sensor harness con-
nector.
4) Connect 150Wresistor to engine coolant temperature sensor
harness connector.
5) Start engine and make sure that cooling fan operates.
Be careful not to overheat engine.
6) If NG, go to ªDiagnostic Procedureº, EC-1109.
AEC640
SEF111X
MEC475B
DTC 0208 OVER HEATZD30DDTi
EC-1107

17 CHECK MAIN 12 CAUSES
If the cause cannot be isolated, go to ªMAIN 12 CAUSES OF OVERHEATINGº, EC-1116.
cINSPECTION END
Main 12 Causes of Overheating
Engine Step Inspection item Equipment Standard Reference page
OFF 1+Blocked radiator
+Blocked condenser
+Blocked radiator grille
+Blocked bumper+Visual No blocking Ð
2+Coolant mixture+Coolant tester 30 - 50% coolant mixture See ªRECOMMENDED
FLUIDS AND LUBRI-
CANTSº in MA section.
3+Coolant level+Visual Coolant up to MAX level
in reservoir tank and
radiator filler neckSee ªChanging Engine
Coolantº, ªENGINE MAIN-
TENANCEº in MA sec-
tion.
4+Radiator cap+Pressure tester 78 - 98 kPa
(0.78 - 0.98 bar, 0.8 - 1.0
kg/cm
2, 11 - 14 psi)
59 - 98 kPa (0.59 - 0.98
bar, 0.6 - 1.0 kg/cm
2,
9 - 14 psi) (Limit)See ªSystem Checkº,
ªENGINE COOLING SYS-
TEMº in LC section.
ON*2 5+Coolant leaks+Visual No leaks See ªSystem Checkº,
ªENGINE COOLING SYS-
TEMº in LC section.
ON*2 6+Thermostat+Touch the upper and
lower radiator hosesBoth hoses should be hot. See ªThermostatº and
ªRadiatorº, ªENGINE
COOLING SYSTEMº in
LC section.
ON*1 7+Cooling fan+Visual Operating See ªDTC 0208 OVER
HEATº, EC-1105.
OFF 8+Combustion gas leak+Color checker chemical
tester 4 gas analyzerNegative Ð
ON*3 9+Coolant temperature
gauge+Visual Gauge less than 3/4
when drivingÐ
+Coolant overflow to res-
ervoir tank+Visual No overflow during driving
and idlingSee ªChanging Engine
Coolantº, ªENGINE MAIN-
TENANCEº in MA sec-
tion.
OFF*4 10+Coolant return from res-
ervoir tank to radiator+Visual Should be initial level in
reservoir tankSee ªENGINE MAINTE-
NANCEº in MA section.
OFF 11+Cylinder head+Straight gauge feeler
gauge0.1 mm (0.004 in) Maxi-
mum distortion (warping)See ªInspectionº, ªCYLIN-
DER HEADº in EM sec-
tion.
12+Cylinder block and pis-
tons+Visual No scuffing on cylinder
walls or pistonSee ªInspectionº, ªCYLIN-
DER BLOCKº in EM sec-
tion.
*1: Engine running at idle.
*2: Engine running at 3,000 rpm for 10 minutes.
*3: Drive at 90 km/h (55 MPH) for 30 minutes and then let idle for 10 minutes.
*4: After 60 minutes of cool down time.
For more information, refer to ªOVERHEATING CAUSE ANALYSISº in LC section.
DTC 0208 OVER HEATZD30DDTi
Diagnostic Procedure (Cont'd)
EC-1116

5. Disconnect harness connectors from alternator and air com-
pressor.
6. Remove alternator.
7. After removing refrigerant, remove pipes of air compressor
and inlet/outlet.
8. Disconnect heating hose, install blank cap to hose to prevent
coolant from leaking.
9. Remove heating pipe.
10. Remove heat insulator.
11. Remove catalytic converter.
Engine room (Right)
12. Remove power steering reservoir tank from bracket, and fix
it to the vehicle with a rope.
CAUTION:
Keep the reservoir tank level when fixing to prevent oil leak.
13. Remove fuel feed and return hoses.
CAUTION:
Install blank caps immediately to avoid fuel leakage.
14. Remove all harness connectors on the engine, and move
harnesses to the side of the vehicle.
Vehicle underfloor
15. Remove starter motor.
16. Detach A/T oil cooler pipes from oil pan. (A/T model)
17. Remove rear propeller shaft.
18. Remove mounting bolts to secure the engine to transmission.
1) Remove torque converter installation bolt. (A/T model)
2) Lift transmission bottom with transmission jack, and remove
rear mount members from the vehicle.
3) Lower transmission with the jack, and remove upper mount-
ing bolts securing the engine to transmission.
4) Lift transmission with the jack, and reinstall rear mount mem-
bers to the vehicle.
5) Position the jack to the front side of transmission.
6) Remove remaining mounting bolts securing the engine to
transmission.
Removal operation
19. Remove air conditioner high pressure pipes at the rear of the
engine room.
+This is due to some inconvenience in the rear slinger instal-
lation.
20. Install the engine slingers (standard service part) to front-left
and rear-right.
:25-28Nzm (2.5 - 2.9 kg-m, 18 - 20 ft-lb)
WARNING:
For engines without engine slingers, attach proper slingers
and bolts described in the PARTS CATALOG.
FEM082
ENGINE REMOVALZD
Removal (Cont'd)
EM-1065

Radiator
REMOVAL AND INSTALLATION
1. Remove under cover.
2. Drain engine coolant. Refer to MA section, ªChanging Engine
Coolantº.
3. Remove air cleaner case, air duct and resonator.
4. Remove battery (right side).
5. Move window washer tank.
6. Remove radiator shroud (lower).
7. Remove radiator shroud (front).
8. Disconnect radiator hose (upper and lower).
9. Disconnect reservoir tank hose.
10. Disconnect A/T oil cooler hose (Only A/T models).
JLC378B
ENGINE COOLING SYSTEMZD
LC-1013

Fluids and Lubricants
Capacity (Approximate)
Recommended Fluids/Lubricants
Liter Imp measure
Engine oil (Refill)
With oil filter
ZD30DDTi 5.7 5 qtDiesel engine: API CF4 or ACEA
B3-96.98 or ACEA B3/E3-
96.98*3 for ZD30DDTi Without oil filter
ZD30DDTi 5.2 4-5/8 qt
Cooling system (with reservoir tank)
With front heater
ZD30DDTi M/T, A/TRHD 12.7 11-1/8 qt
Genuine Nissan Anti-freeze Coolant
(L2N) or equivalent*4 LHD 12.9 11-3/8 qt
Without front
heaterZD30DDTi M/T, A/TRHD 12.0 10-5/8 qt
LHD 12.2 10-3/4 qt
With rear heater
ZD30DDTi M/T, A/TRHD 13.8 12-1/8 qt
LHD 14.0 12-3/8 qt
Manual transmission Ð Ð API GL-4, Viscosity SAE 75W-90 only
Differential carrier gear oil (without limited slip differential) Ð Ð API GL-5*1
Transfer fluid
ÐÐGenuine Nissan ATF or equivalent*2 or
API GL-4*1
Automatic transmission fluid 11.8 10-3/8 qt Genuine Nissan ATF or equivalent*2
Power steering fluid Refill to the proper oil level
according to the instructions in
ªDo-it-yourself operationsº sec-
tion of the owner's manual.Type DEXRON
TMIII or equivalent
Brake and clutch fluid
DOT 3 or DOT 4 (U.S. FMVSS No.
116)*5
Multi-purpose grease Ð Ð NLGI No. 2 (Lithium soap base)
Propeller shaft greaseNLGI No. 2 (Molybdenum disulphide
lithium soap base)
Air conditioning system refrigerant Ð Ð HFC-134a (R-134a)
Air conditioning system lubricants
ÐÐNissan A/C System Oil Type S or
exact equivalent
*1: For further details, see ªSAE viscosity numberº.
*2: For more information regarding suitable fluids, contact a Nissan dealer for correct brands of DEXRON
TMIII/MERCONTMAutomatic Transmission Fluid.
*3: Never use API CG-4.
*4: Use Genuine Nissan Anti-freeze Coolant (L2N) or equivalent in its quality, in order to avoid possible aluminum corrosion within the engine cooling
system caused by the use of non-genuine engine coolant.
Note that any repairs for the incidents within the engine cooling system while using non-genuine engine coolant may not be covered by
the warranty even if such incidents occurred during the warranty period.
*5: Never mix DOT 3 & DOT 4.
RECOMMENDED FLUIDS AND LUBRICANTS
MA-1008

4. Remove water inlet and cylinder block drain plug located at
left center of cylinder block.
5. Remove reservoir tank (sides with pressure valve and with-
out pressure valve) and drain coolant.
ÐREFILLING ENGINE COOLANTÐ
6. Install reservoir tank, radiator drain plug, and cylinder block
drain plugs.
+Apply sealant to the thread of cylinder block drain plug.
Cylinder block drain plug:
:24-26Nzm (2.4 - 2.7 kg-m, 18 - 19 ft-lb)
Water inlet drain plug:
Height (H) mm (in): 5.0 - 7.8 (0.197 - 0.307)
7. Move heater TEMP control knob all the way to HOT.
8. Fill radiator with coolant up to the filler neck and install radia-
tor cap.
For coolant mixture ratio, refer to MA-1010.
9. Fill reservoir tank (with pressure valve) with coolant up to the
filler neck.
10. Fill reservoir tank with coolant up to the MAX level.
JMA107D
SMA108D
SMA182B
ENGINE MAINTENANCEZD
Changing Engine Coolant (Cont'd)
MA-1015

Coolant capacity (With reservoir tank):!(Imp qt)
RHD models
Without rear heater 11.8 (10-3/8)
With rear heater 12.9 (11-3/8)
LHD models
Without rear heater 11.6 (10-1/4)
With rear heater 12.7 (11-1/8)
Reservoir tank capacity (for MAX level):
1.2!(1-1/8 Imp qt)
Pour coolant through coolant filler neck slowly to allow air
in system to escape.
11. Install radiator cap (side with pressure valve).
12. Warm up engine to normal operating temperature.
13. Run engine at 2,000 rpm for 10 seconds and return to idle
speed.
+Repeat 2 or 3 times.
Watch coolant temperature gauge so as not to overheat the
engine.
14. Stop engine and cool it down.
+Cool down using a fan to reduce the time.
15. Remove the reservoir tank filler cap (side with pressure
valve) and check coolant level.
+If necessary, refill reservoir tank (side with pressure valve) up
to filler neck with coolant.
16. Refill reservoir tank to Max line with coolant.
17. Repeat step 10 through step 16 two or more times.
18. Warm up engine, and check for sound of coolant flow while
running engine from idle up to 2,000 rpm with heater tem-
perature control set at several positions between COOL and
HOT.
+Sound may be noticeable at heater water cock.
19. If sound is heard, bleed air from cooling system by repeat-
ing steps 12 through 18 until coolant level no longer drops.
+Clean excess coolant from engine.
Checking Cooling System
CHECKING HOSES AND CLAMPS
Check hoses and clamps for proper attachment, leaks, cracks,
damage, loose connections, chafing and deterioration.
CHECKING RADIATOR CAP
Apply pressure to radiator cap (side with pressure valve) with
cap tester to see if it is satisfactory.
Radiator cap relief pressure:
59-98kPa
(0.59 - 0.98 bar, 0.6 - 1.0 kg/cm
2,9-14psi)
SMA412B
JMA109D
SLC613
ENGINE MAINTENANCEZD
Changing Engine Coolant (Cont'd)
MA-1016