2. While the cooling system is being serviced, all hoses and radiator cap should be checked and replaced if necessary (see section 9).
3. Since the coolant is a solution that causes corrosion and poisoning, be careful not to spill it on the painted parts of the car or on the skin. If this does happen, immediately flush the area with plenty of clean water.
4. When the engine is cool, remove the cap from the radiator.
5. Having placed a container for coolant under the radiator, start draining.
6. Drain the coolant from the radiator by opening the drain hole at the bottom left side (see illustration). If the drain plug is rusted and cannot be removed, or if the radiator does not have a plug, disconnect the lower radiator hose and drain the coolant. Be careful not to get it on your skin or eyes.
29.6. drain plug (arrow) located on the lower left corner of the radiator
7. After the coolant stops flowing from the radiator, move the container under the drain plug (traffic jams) engine block, then remove the plugs. The 3.1L engine has plugs on both sides of the block, while the 3.8L engine has only one plug. On vehicles equipped with an engine oil cooler, disconnect the inlet hose located on the left side of the cooler.
8. Disconnect the hose from the expansion tank and remove it. Rinse the tank with clean water.
9. Insert a hose into the radiator filler neck and flush the system until clean water comes out of all drain holes.
10. In cases of severe contamination of the radiator, remove it (see chapter 3) and backwash. In this case, you need to insert a hose into the lower radiator pipe to allow water to flow against the normal direction of flow, pouring out through the top. The need for further cleaning or repair of the radiator can be consulted at radiator repair shops.
11. If the coolant is regularly drained and the system is filled with a mixture of antifreeze and water in the correct ratio, then there is no need to use chemical cleaners.
12. To refill the system with fluid, tighten the block plugs, connect all radiator and oil cooler hoses, and install the expansion tank and overflow hose.
13. Slowly fill the radiator with the recommended coolant (see section 4) to the base of the filler neck. Wait two minutes and check the coolant level again, topping up if necessary, then close the radiator cap. Add coolant to the expansion tank until it reaches the bottom mark.
14. On models with a rear heater, avoid using the rear fan the first three times the engine reaches operating temperature. This will ensure that the full flow of fluid passes through the heater core and at the same time the air is forced out of the radiator and pipelines.
15. Keep a close eye on the coolant level and cooling system hoses for the first few miles of driving after the cooling system has been serviced. Tighten the hose clamps and/or add coolant to the system if necessary. The coolant level should be slightly above the mark "NOT" on the engine reservoir at normal operating temperature.