1.38 Coolant

Fig. 1.274. Topped engine oil

During operation the system is under increased pressure, so the temperature may briefly rise above 100 ° C. Coolant through glycol provides corrosion protection for cooling and heating, as well as from freezing to about -28 ° C. She remains in the cooling system all year round and does not need to be replaced. The use of some anti-freeze can cause damage to the engine, to avoid this, use antifreeze, admitted by Opel. Antifreeze is harmful to health, so keep it only in the original packaging and take care of the children.

Protect from freezing and corrosion protection

Before the winter period, check the concentration of the coolant. Contents of antifreeze in the radiator should provide protection from freezing to about -28 ° C. Too low concentration of antifreeze affects the protection against freezing and corrosion. If necessary, add antifreeze. In the case of loss of coolant top up the water, check the concentration of antifreeze and if necessary, add antifreeze (Fig. 1.275).

Fig. 1.275. Check the concentration of antifreeze

The level of coolant

In a closed system, cooling losses are practically absent, so refilling the coolant is needed very rarely.

Fig. 1.276. Mess with the coolant

The level of coolant in the compensating tank with cold cooling system should be slightly above the mark KALT / COLD. When warmed up to operating temperature the engine level rises, and when cooling is reduced again. If he falls below the mark, top up coolant should be a little above it. Before opening plugs allow the engine to cool down. Carefully open the tube to excessive pressure slowly fell, because otherwise there is a risk of burns.