Infiniti QX4 service since 1996 of release
1. Introduction
2. Maintenance instruction
3. Routine maintenance
4. Engine
5. Cooling and heating systems
5.1. Specifications
5.2. Antifreeze - general information
5.3. Service of system of cooling
5.4. Removal, installation and check of serviceability of functioning of the thermostat
5.5. Removal, regenerative repair and installation of a radiator of system of cooling
5.6. Replacement of the water pump
5.7. Removal and installation of the fan of system of cooling
5.8. Air lines of distribution of air submitted to salon
5.9. System of automatic air conditioning – a design and a functioning principle
5.10. Design of a refrigerator path of central air of air
5.11. The To/in compressor, - the general information and a functioning principle
5.12. A receiver dehumidifier - the general information and service
5.13. Check of serviceability of functioning and service of systems of heating and air conditioning
5.14. Diagnostics of central air of air
6. Power supply systems and managements
7. Start and charge systems
8. Transmission line
9. Brake system
10. Suspension bracket and steering
11. Body
12. Electric equipment



5.2. Antifreeze - general information

Do not allow antifreeze hit on open sites of a body and the painted surfaces of the car. Casually got splashes immediately wash away a plentiful quantity of water. Remember that antifreeze is extremely toxic liquid and its hit in an organism even in small amounts is fraught with the most serious consequences (up to a lethal outcome).
Never leave antifreeze being stored in leaky closed container and immediately collect cooling liquid spilled on a floor. Remember that the sweetish smell of antifreeze can draw to itself attention of children and animals.
About ways utilization of the fulfilled cooling liquid consult at any station of car-care center. In many regions of the world special points on different reception of working off are equipped. At all do not merge old cooling liquid in the sewerage and on the earth!

Recently nontoxical grades of antifreeze are developed, however they also are subject to utilization in the organized order.

For filling of system of cooling the mix of antifreeze made in due proportions on base этиленгликоля with soft water is usually used. The mix should show stability to freezing at temperatures to — 30°С, and at need and below, depending on a climatic belt of an arrangement of the region of operation of the car. Except frost resistance, antifreeze gives mixes anticorrosive properties and raises a point of its boiling.

Oporozhneniye and washing of system of cooling should be made according to the Schedule of routine maintenance of the car (see. Head Routine maintenance). Use of cooling liquid during longer term is fraught with different damages of system, development of corrosion and scaling. If tap water in the region where the car is maintained, is "rigid", i.e. differs the raised content of mineral salts, for formation of cooling liquid it is necessary to use the distilled or rain water.

Before adding cooling liquid in system check reliability of fastening of hoses of the last on the unions — antifreeze possesses high fluidity and is capable to give leaks through the slightest thinnesses. During normal operation of the engine cooling liquid is not spent, therefore appreciable falling of its level is a sign of development of the external leaks which reason should be immediately found out and eliminated.

The exact composition of cooling liquid is defined by specific climatic conditions. Thus the content of antifreeze in a mix should not be lower than 50 % and not exceed 70 % — address to the card of composition of cooling liquid which is usually put on a container label. Areometers for determination of specific weight (density) of cooling liquid can be got practically in any shop of automobile accessories. Try to use only recommended by manufacturers of the car of a grade of antifreeze (see. Specifications).

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5.1. Specifications
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5.3. Service of system of cooling