What causes air in the Mercedes-Benz C260 radiator and how to deal with it?
1 Answers
The reason for air in the Mercedes-Benz C260 radiator may be due to vapor lock in the coolant. Introduction to Coolant: The full name of coolant should be antifreeze coolant, meaning it has antifreeze functionality. Coolant prevents the liquid from freezing in cold winter conditions, which could otherwise crack the radiator or damage the engine block or cylinder head. Correct procedure for replacing coolant: Open the engine compartment when the vehicle is cold and check if the coolant level is sufficient. The coolant reservoir has MAX and MIN level marks; if the level is below the MIN mark when cold, add coolant up to the indicated level. Inspect all connecting hoses for cracks or leaks, paying special attention to the five-way pipe. Drain the old coolant and flush the system with clean water, allowing it to flow continuously through the engine cooling system. Start the engine and let it idle for 3 to 5 minutes to circulate the water. Continue flushing with clean water until the water runs clear. To allow the new coolant to flow quickly into the radiator, about one hour after draining, add new coolant through the radiator hose. Add another container of coolant to the coolant reservoir until it is nearly full. Start the engine and let it run for about 10 minutes. As air is expelled from the system, the coolant level will drop. Top up the coolant to a level between the two marks on the reservoir.
