Infiniti EX35. Manual — part 424
PRECAUTIONS
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
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The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIRBAG” and “SEAT BELT” of this
Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIRBAG”.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
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PREPARATION
PREPARATION
PREPARATION
Commercial Service Tools
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Tool name
Description
Power tool
Loosening bolts and nuts
Radiator cap tester
Checking radiator and radiator cap
Radiator cap tester adapter
Adapting radiator cap tester to radiator cap
and water outlet (front) filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
PBIC0190E
PBIC1982E
S-NT564
ENGINE COOLANT
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ON-VEHICLE MAINTENANCE
ENGINE COOLANT
Inspection
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LEVEL
• Check if the reservoir tank engine coolant level is within the “MIN”
to “MAX” when the engine is cool.
• Adjust the engine coolant level as necessary.
• Check that the reservoir tank cap is tightened.
LEAKAGE
• To check for leakage, apply pressure to the cooling system with the
radiator cap tester and radiator cap tester adapter (commercial
service tool) (A).
WARNING:
Never remove radiator cap when engine is hot. Serious burns
could occur from high-pressure engine coolant escaping from
water outlet (front).
CAUTION:
Higher test pressure than specified may cause radiator dam-
age.
NOTE:
In a case that engine coolant decreases, replenish radiator with engine coolant.
• If anything is found, repair or replace damaged parts.
Draining
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WARNING:
• Never change engine coolant when the engine is hot to avoid being scalded.
• Wrap a thick cloth around radiator cap and carefully remove radiator cap. First, turn radiator cap a
quarter of a turn to release built-up pressure. Then turn radiator cap all the way.
1.
Open radiator drain plug (2) at the bottom of radiator, and then
remove radiator cap.
When draining all of engine coolant in the system, open water drain plugs on cylinder block. Refer
to
.
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.
A
: MAX
B
: MIN
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Testing pressure
: Refer to
.
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1
: Engine under cover
A
: Radiator drain plug hole
: Vehicle front
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< ON-VEHICLE MAINTENANCE >
ENGINE COOLANT
If contaminated, flush the engine cooling system. Refer to
Refilling
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1.
Remove engine cover. Refer to
2.
Install reservoir tank if removed, and radiator drain plug.
CAUTION:
Be sure to clean drain plug and install with new O-ring.
If water drain plugs on cylinder block are removed, close and tighten them. Refer to
3.
Check that each hose clamp has been firmly tightened.
4.
Remove air relief plug (2) on radiator left side.
5.
Remove air relief plug (1) on heater hose.
6.
Fill radiator, and reservoir tank if removed, 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 Genuine NISSAN Long Life Antifreeze/Coolant or
equivalent mixed with water (distilled or demineralized).
Refer to
MA-10, "Fluids and Lubricants"
Tightening torque
: Refer to
1
: Reservoir tank
3
: Engine cover
: Vehicle front
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2
: Heater hose
: Vehicle front
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Engine coolant capacity
: Refer to
"Periodical Maintenanc
e Specification"
(With reservoir tank at
“MAX” level)
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