Contents Wiring diagrams Section: Cooling System (Mechanical) All sections

Engine Cooling System: Other Nissan 370Z I

Cooling System (Mechanical) 6 illustrations ~435 words

FOR USA AND CANADA : Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"

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 AIR BAG" and "SEAT BELT" of this Service Information.

WARNINGTo avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision that 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 AIR BAG article. Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Information. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNINGWhen working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing serious injury. When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service.

FOR USA AND CANADA : Precautions For Xenon Headlamp Service

WARNINGComply with the following warnings to prevent any serious accident. Disconnect the battery cable (negative terminal) or the power supply fuse before installing, removing, or touching the xenon headlamp (bulb included). The xenon headlamp contains high-voltage generated parts. Never work with wet hands. Check the xenon headlamp ON-OFF status after assembling it to the vehicle. Never turn the xenon headlamp ON in other conditions. Connect the power supply to the vehicle-side connector. (Turning it ON outside the lamp case may cause fire or visual impairments.) Never touch the bulb glass immediately after turning it OFF. It is extremely hot.
CAUTIONComply with the following cautions to prevent any error and malfunction. Install the xenon bulb securely. (Insufficient bulb socket installation may melt the bulb, the connector, the housing, etc. by high-voltage leakage or corona discharge.) Never perform HID circuit inspection with a tester. Never touch the xenon bulb glass with hands. Never put oil and grease on it. Dispose of the used xenon bulb after packing it in thick vinyl without breaking it. Never wipe out dirt and contamination with organic solvent (thinner, gasoline, etc.).

FOR MEXICO : Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"

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. Information necessary to service the system safely is included in the "SRS AIR BAG" and "SEAT BELT" of this Service Information.

WARNINGTo 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 AIR BAG article. Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Information. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.
WARNINGWhen working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing serious injury. When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service.

FOR MEXICO : Precautions For Xenon Headlamp Service

WARNINGComply with the following warnings to prevent any serious accident. Disconnect the battery cable (negative terminal) or the power supply fuse before installing, removing, or touching the xenon headlamp (bulb included). The xenon headlamp contains high-voltage generated parts. Never work with wet hands. Check the xenon headlamp ON-OFF status after assembling it to the vehicle. Never turn the xenon headlamp ON in other conditions. Connect the power supply to the vehicle-side connector. (Turning it ON outside the lamp case may cause fire or visual impairments.) Never touch the bulb glass immediately after turning it OFF. It is extremely hot.
CAUTIONComply with the following cautions to prevent any error and malfunction. Install the xenon bulb securely. (Insufficient bulb socket installation may melt the bulb, the connector, the housing, etc. by high-voltage leakage or corona discharge.) Never perform HID circuit inspection with a tester. Never touch the xenon bulb glass with hands. Never put oil and grease on it. Dispose of the used xenon bulb after packing it in thick vinyl without breaking it. Never wipe out dirt and contamination with organic solvent (thinner, gasoline, etc.).

Commercial Service Tools

SERVICE TOOL DESCRIPTION Tool name Description Tube presser Pressing the tube of liquid gasket 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 28 (1.10) dia. 31.4 (1.236) dia. 41.3 (1.626) dia. Unit: mm (in)

Scheme 30

Scheme 30: Commercial Service Tools

Scheme 31

Scheme 31

Scheme 32

Scheme 32

Scheme 33

Scheme 33

Scheme 34

Scheme 34: LEVEL
  1. Check if the reservoir tank engine coolant level is within the "MIN" to "MAX" when the engine is cool.
  2. Adjust the engine coolant level if necessary.
  3. Check that the reservoir tank cap is tightened.

Scheme 35

Scheme 35: LEAKAGE
  1. To check for leakage, apply pressure to the cooling system with the radiator cap tester and radiator cap tester adapter (commercial service tool) (A). Testing pressure : Refer to " «RADIATOR»(ref-402632-S13811369172011053100000) ". 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 damage. NOTE: In a case that engine coolant decreases, replenish radiator with engine coolant.
  2. If anything is found, repair or replace damaged parts.

Radiator

Unit: kPa (kg/cm 2 , psi)
Cap relief pressureStandard122.3 - 151.7 (1.2 - 1.5, 18 - 22)
Limit107 (1.1, 16)
Leakage testing pressure157 (1.6, 23)

RADIATOR SPECIFICATION

Thermostat

ThermostatStandard
Valve opening temperature76.5°C (170°F)
Maximum valve lift9.0 mm/90°C (0.354 in/194°F)
Valve closing temperature71°C (160°F)

THERMOSTAT SPECIFICATION