When replacing coolant, be sure to flush the system.
1. Check that all hoses and clamps are in good condition and that the clamps are tight.
2. Check that the heater control is in position "full heating", and remove the expansion tank cap. In order to allow air to escape from the system when filling, on 1.3 engines, partially unscrew the temperature sensor from the intake manifold. On larger engines, loosen the bleed screw on the thermostat housing. If there is no bleed screw on the thermostat housing, the system is self-bleeding.
3. Pour coolant into the expansion tank, doing it slowly so that no air pockets form in the system.
4. When replacing antifreeze, you should first pour about a liter of clean water into the system, and then the required amount of antifreeze (based on half the system capacity - see Specifications, which will give the required 50%). Add water until the desired level is reached.
5. Close the bleeder screw or replace the temperature sensor once bubble-free liquid begins to flow from the hole. Add water so that the liquid level in the tank is 10 mm above the mark "KALT" on the wall of the expansion tank. Squeeze the main hoses of the system several times to remove possible water plugs. Replace and tighten the reservoir cap and wipe up any spilled liquid.
6. Start the engine and run it at fast idle until the electric fan turns on. Carefully inspect the system for leaks. Stop the engine and let it cool, then check the fluid level in the expansion tank and top up if necessary. Remember that the fluid level must be checked on a cold system.
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