Nissan Tiida C11. Manual - part 1066

RECOMMENDED FLUIDS AND LUBRICANTS

MA-21

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Engine Coolant Mixture Ratio

INFOID:0000000001277601

The engine cooling system is filled at the factory with a high-quality,
year-round and extended life engine coolant. The high quality engine
coolant contains the specific solutions effective for the anti-corrosion
and the anti-freeze function. Therefore, additional cooling system
additives are not necessary.

CAUTION:

• When adding or replacing coolant, be sure to use only Genu-

ine NISSAN Engine Coolant or equivalent in its quality. Genu-
ine NISSAN Engine Coolant is premixed (mixture ratio 50%)
type coolant.

The use of other types of engine coolant may damage your
cooling system.
• When checking the engine coolant mixture ratio by the coolant hydrometer, use the chart below to correct

your hydrometer reading (specific gravity) according to coolant temperature.

Mixed coolant specific gravity

Unit: specific gravity

WARNING:

Never remove the radiator cap when the engine is hot. Serious burns could be caused by high pres-
sure fluid escaping from the radiator. Wait until the engine and radiator cool down.

SMA089D

Engine coolant mixture 

ratio

Coolant temperature 

°

C (

°

F)

15 (59)

25 (77)

35 (95)

45 (113)

30%

1.046 - 1.050

1.042 - 1.046

1.038 - 1.042

1.033 - 1.038

50%

1.076 - 1.080

1.070 - 1.076

1.065 - 1.071

1.059 - 1.065

MA-22

< ON-VEHICLE MAINTENANCE >

ENGINE MAINTENANCE (HR16DE)

ENGINE MAINTENANCE (HR16DE)

DRIVE BELTS

DRIVE BELTS : Checking

INFOID:0000000001730848

• Inspection should be done only when engine is cold or over 30

minutes after the engine is stopped.

• Visually check belts for wear, damage, and cracks on inside and

edges.

• Turn crankshaft pulley two time clockwise, and make sure tension on all pulleys is equal before doing the

test.

• When measuring deflection, apply 98 N (10 kg, 22 lb) at the ( ) marked point.
• Measure the belt tension and frequency with acoustic tension gauge (commercial service tool) at the ( )

marked point.

CAUTION:

• When the tension and frequency are measured, the acoustic tension gauge should be used.
• When checking immediately after installation, first adjust it to the specified value. Then, after turning

crankshaft two turns or more, re-adjust to the specified value to avoid variation in deflection
between pulleys.

DRIVE BELTS : Tension Adjustment

INFOID:0000000001730849

CAUTION:

• When belt is replaced with new one, adjust belt tension to the value for “New belt”, because new belt

will not fully seat in the pulley groove.

• When tension of the belt being used exceeds “Limit”, adjust it to the value for “After adjusted”.
• When installing a belt, make sure it is correctly engaged with the pulley groove.
• Never allow oil or engine coolant to get on the belt.
• Never twist or bend the belt strongly.

1.

Loosen the idler pulley lock nut (A) from the tightening position
with the specified torque by 45 degrees.

CAUTION:

1

: Generator

2

:  Water  pump

3

: Crankshaft pulley

4

: A/C compressor (with A/C models)

: Idler pulley (without A/C models)

5

: Idler pulley

6

:  Drive  belt

Belt Deflection / Belt Tension and Frequency

: Refer to 

EM-122, "Drive Belts"

.

PBIC3642E

Location

Location of adjuster and tightening method

Drive belt

Adjusting bolt on idler pulley

1

: Generator

2

:  Water  pump

3

: Crankshaft pulley

4

: A/C compressor (with A/C models)

: Idler pulley (without A/C models)

5

: Idler pulley

6

: Drive belt

A

: Idler pulley lock nut

B

: Adjusting bolt

PBIC3643E

ENGINE MAINTENANCE (HR16DE)

MA-23

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• When the lock nut is loosened excessively, the idler pulley tilts and the correct tension adjust-

ment cannot be performed. Never loosen it excessively (more than 45 degrees).

• Put a matching mark on the lock nut, and check turning angle with a protractor. Never visually

check the tightening angle.

2.

Adjust the belt tension by turning the adjusting bolt.

CAUTION:

• When checking immediately after installation, first adjust it to the specified value. Then, after

turning crankshaft two turns or more, re-adjust to the specified value to avoid variation in deflec-
tion between pulleys.

• When the tension adjustment is performed, the lock nut should be in the condition at step“2”. If

the tension adjustment is performed when the lock nut is loosened more than the standard, the
idler pulley tilts and the correct tension adjustment cannot be performed.

3.

Tighten the idler pulley lock nut.

ENGINE COOLANT

ENGINE COOLANT : Inspection

INFOID:0000000001730856

LEVEL CHECK

• Check if the reservoir tank engine coolant level is within the “MIN”

to “MAX” range when engine is cool.

• Adjust the engine coolant level as necessary.

CHECKING COOLING SYSTEM FOR LEAKS

To check for leaks, apply pressure to the cooling system using suit-
able tool.

WARNING:

Never remove the radiator cap when the engine is hot. Serious
burns could occur from high pressure coolant escaping from
the radiator.

CAUTION:

Higher pressure than specified may cause radiator damage.

ENGINE COOLANT : Changing Engine Coolant

INFOID:0000000001730857

WARNING:

• To avoid being scalded, do not change engine coolant when engine is hot.
• Wrap a thick cloth around radiator cap and carefully remove the cap. First, turn the cap a quarter of a

turn to release built-up pressure. Then turn the cap all the way.

• Be careful not to allow engine coolant to contact drive belt. 

DRAINING ENGINE COOLANT

Idler pulley lock nut

: 34.8 N·m (3.5 kg-m, 26 ft-lb)

SMA412B

Testing pressure

: 157 kPa (1.6 kg/cm

2

, 23 psi)

WBIA0568E

MA-24

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ENGINE MAINTENANCE (HR16DE)

1.

Open radiator drain plug (1) at the bottom of radiator, and then
remove radiator cap. 
•

 Front

When drain all of engine coolant in the system, open water
drain plug on cylinder block. Refer to 

EM-100, "Exploded

View"

.

CAUTION:

• Perform this step when engine is cold. 
• Do not spill engine coolant on drive belt.

2.

Remove reservoir tank as necessary, and drain engine coolant and clean reservoir tank before installing.

3.

Check drained engine coolant for contaminants such as rust, corrosion or discoloration.
 If contaminated, flush the engine cooling system. Refer to 

CO-11, "Changing Engine Coolant"

.

REFILLING ENGINE COOLANT 

1.

Install reservoir tank if removed.

2.

Install radiator drain plug.
• If water drain plug on cylinder block is removed, close and tighten it. Refer to 

EM-100, "Exploded

View"

.

CAUTION:

Be sure to clean radiator drain plug and install with new O-ring. Refer to 

CO-16, "Component"

.

3.

Make sure that each hose clamp has been firmly tightened.

4.

Remove air duct assembly. Refer to 

EM-27, "Exploded View"

.

5.

Disconnect heater hose (1) at position (

) as shown. 

•

 Front

• Reposition heater hose as high as possible.

6.

Fill radiator and reservoir tank to specified level.
• Pour engine coolant through engine coolant filler neck

slowly of less than 2  (2 1/8 US qt, 1-3/4 lmp qt) a minute
to allow air in system to escape.

• Use NISSAN Genuine Engine Coolant or equivalent mixed

with water (distilled or demineralized). Fill cooling system
to specification. Refer to 

MA-19, "Fluids and Lubricants"

.

• When engine coolant overflows disconnected heater hose,

connect heater hose, and continue filling the engine coolant, if
heater hose is disconnected.

7.

Install radiator cap.

8.

Install air duct assembly. Refer to 

EM-27, "Exploded View"

.

9.

Warm up until opening thermostat. Standard for warming-up time is approximately 10 minutes at 3,000
rpm.
• Make sure thermostat opening condition by touching radiator hose (lower) to see a flow of warm water.

CAUTION:

Watch water temperature gauge so as not to overheat the engine.

10. Stop engine and cool down to less than approximately 50

°

C (122

°

F).

• Cool down using fan to reduce the time.
• If necessary, refill radiator up to filler neck with engine coolant.

PBIC3799E

PBIC3802E

SMA182B