Hyundai Matrix service from 2002 to 2006 of release
1. Operation and car maintenance
2. Engine
2.1. Maintenance
2.1.1. Check of level of engine oil
2.1.2. Replacement of engine oil
2.1.3. Choice of the oil filter
2.1.4. Replacement of the oil filter
2.1.5. Check of tightness of system of cooling
2.1.6. Check of valves of a cover of a radiator
2.1.7. Check of concentration of antifreeze
2.1.8. Compression check
2.1.9. Adjustment of a tension of a belt of a drive of GRM
2.1.10. Drive of hinged units
2.1.11. Natyazhitel of a belt of a drive of hinged units
2.1.12. Adjustment of a belt of a drive of hinged units
2.1.13. Adjustment of a belt of a drive of the generator
2.2. Mechanical part (engine of 1,6 l)
2.3. Mechanical part (engine of 1.8 l)
2.4. Cooling system
2.5. Greasing system
2.6. Power supply system
2.7. Control system, fuel system and system of decrease in toxicity
2.8. Tables
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
8. Body
9. Electric equipment schemes
 







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2.1.7. Check of concentration of antifreeze

Measurement of specific weight of cooling liquid by means of the areometer
Fig. 2.7. Measurement of specific weight of cooling liquid by means of the areometer


Measure specific weight of cooling liquid by means of the areometer (fig. 2.7).
Take temperature of cooling liquid and define concentration of antifreeze taking into account dependence between specific weight and temperature on the basis of data of the provided table.
Example: the temperature of safe operation makes–15 °C when the measured specific weight makes 1,058 g/cm3 at temperature of cooling liquid of 20 °C.

Recommended cooling liquid
If concentration of antifreeze is lower than 30 %, anticorrosive properties of cooling liquid considerably decrease.
If concentration more than 60 %, raises temperature of crystallization of antifreeze (efficiency of heat exchange decreases), influencing adversely the engine. Therefore be convinced that level of concentration of antifreeze is in limits of the specified range.
Do not mix antifreezes of different trademarks.

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2.1.6. Check of valves of a cover of a radiator
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2.1.8. Compression check