Examination
Caution: To avoid burns, do not remove the expansion tank cap while the engine is hot, as fluid and vapor are under pressure.
1. Park the vehicle on a level, level surface.
2. Check that on a cold engine, the coolant level in the expansion tank is at the mark "FULL COLD", located on the wall of the tank.
Tank (type 1) | 
Tank (type 2) |
If the vehicle is equipped with a message alert system, when the coolant level is low, the system display will show the message "LOW COOLANT LEVEL".
On some vehicle modifications, an indicator is used to warn of a low coolant level "LOW COOLANT".
If the coolant level is low, check for leaks and with a cold engine, add coolant to the expansion tank, up to the mark "FULL COLD". Add the same type of coolant used in the system.
Note:
- Since the cooling system is closed type, the normal loss of coolant is small. A noticeable drop in coolant level may indicate leaks.
- If the expansion tank cap is not installed tightly, significant coolant loss is possible, which can lead to engine damage.
3. Check the quality of the coolant.
- A) Remove the expansion tank cap.
- b) Check that the coolant is clear and free of oil. If the coolant is contaminated, clean the channels of the cooling system and replace the coolant) Reinstall the expansion tank cap.
4. If necessary, check the antifreeze concentration.
- A) Measure the specific gravity of the coolant with a hydrometer.
- b) Measure the temperature of the coolant and determine the concentration of antifreeze, taking into account the relationship between specific gravity and temperature, based on the data in the table "Relationship between coolant density and antifreeze concentration". Check if the results are normal (see section "Coolant replacement"). Top up with antifreeze or distilled water if necessary.
Table. Relationship between coolant density and antifreeze concentration
