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How to change the radiator coolant?

  • Published at 05:04 am September 15th, 2015

In order for your vehicle to function efficiently and effectively, the radiator and cooling system needs to be cleaned every once in a while. Over time with normal wear and tear, the radiator builds up deposits that can jam the cooling system. A quick and inexpensive way to keep your system in shape is to clean the system with a radiator flush. It is always a safe bet to flush the radiator every two to three years.

Make sure your car is left idle for a while and the system is completely cool before you begin. Refer to the owner’s manual to find the radiator drain plug. Place a bucket underneath the drain plug, unscrew the drain plug, and let the old coolant drain completely. Screw back the drain plug and remove the radiator cap. Use a funnel to add about two litres of radiator flush solution and then fill up the rest of the radiator with water. Put the radiator cap back on. Start the engine and let it run until it gets to its normal operating temperature. Turn on your air-condition to full, and let the car run for 10 minutes. Shut down the engine and wait for it to cool down completely. Repeat the radiator draining process again. Now fill up the radiator with fresh coolant. Make sure you dispose of the old coolant safely. Old coolant is fatal; it can cause irritation to the human skin and its sweet taste can be enticing to pets.

Note that the temperature can be a dangerous issue when you are working on the engine. So make sure that you give plenty of time to your engine to cool before you start to drain the radiator. Don’t dash through this job, and always take the side of caution.

Tools You Need: Cross-head screwdriver or wrench, rags, radiator flush solution, coolant, funnel, a bucket to drop in your used coolant

Time to Complete: 30 minutes

Estimated Cost: Tk1,200