- antifreeze;
- distilled water.
Examination
The coolant level should be checked regularly, approximately every 4 weeks and at least before any long trip.
To replenish the coolant, also in the warm season, a mixture of antifreeze and distilled water should be used.
Attention! In emergency situations, especially in summer, clean water can be poured into the cooling system. However, then, as soon as possible, it is necessary to bring the concentration of antifreeze and anti-corrosion agent in the coolant to the required level.
Attention! If possible, do not use additives such as anti-corrosion or micro-leak sealing agents. Due to the deterioration of heat transfer from the cylinder head to the coolant, vapor locks can form, which, under adverse conditions, can lead to a burnt cylinder head gasket or even a head rupture.
Attention! Do not remove the expansion tank cap when the engine is hot. Risk of burns! Check the coolant level only on a cold engine at a temperature of approximately +20°C.
Cars with a petrol engine manufactured before 5/99. The coolant level with a cold engine should be at the top of the fin 1 on the wall of the expansion tank 2 (see illustration 9.0). When the engine is warm, the coolant level should be about 1 cm above the fin.
Vehicles with a petrol engine from 6/99. The coolant level with a cold engine should be at mark 3 (MIN) expansion tank wall 1 (see illustration 9.0a).
Attention! For vehicles with a diesel engine manufactured from 6/99, the marks 3/2 (MIN/MAX) embossed on the wall of the expansion tank (see illustration 9.0a).
Attention! Do not mix coolant of different brands and colors. This can cause significant engine damage. In the event that a coolant that does not meet the requirements of the vehicle manufacturer was mistakenly filled into the system, drain it immediately and flush the system with clean water.
If the coolant level has dropped below the MIN·mark, the expansion tank must be topped up with 1 fresh coolant.
1. Fill in cold coolant only when the engine is cold. Failure to do so may result in engine damage.
2. Loosen the expansion tank cap first by one turn, thereby relieving excess pressure, and only then unscrew it completely and remove.
Attention! When unscrewing the expansion tank cap on a hot engine, place a thick rag or rag on the cap.
3. Perform a visual leak test of the cooling system if the fluid level drops sharply within a short time.