Fig. 3.75. Elements of the cooling system: 1 - expansion tank; 2 - housing for coolant; 3 - coolant temperature sensor; 4 - coolant temperature sensor for the gauge in the instrument cluster; 5 - water pump; 6 - thermostat; 7 - thermostat housing; 8 - Coolant/oil heat exchanger (without air conditioning system); 9 - radiator; 10 - condenser and tank for liquid refrigerant (only with air conditioning system); 11 - Electric fan
- Apart from replacing the coolant at the prescribed intervals, maintenance is limited to checking the coolant level in the expansion tank.
- Remove the cap from the expansion tank.
- Place a suitable container under the lower radiator tank hose connection.
- Disconnect the hose from the lower radiator tank and drain the coolant.
- Remove the plug on the cylinder block and drain the coolant.
- Unscrew the air bleed plugs on the radiator and the supply hoses to the heating system radiators (Fig. 3.76).
Fig. 3.76. Location of the coolant drain plug from the cylinder block
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