DIY car radiator flushing

DIY car radiator flushing

A simple procedure

ATTENTION!

Study the product instructions carefully before use.
Follow all safety precautions when working with chemicals; wear protective clothing, gloves, and a respirator.

  • Detach the lowest pipe of the cooling system and drain the coolant into a prepared container.
  • Check the pipes and radiator for dirt and limescale.
  • Reattach and secure the pipe.

  • If there’s a little dirt in the pipes and radiator, pour distilled water into the cooling system. Check your vehicle manual for the required volume.

If there’s a little dirt in the pipes and radiator, pour distilled water into the cooling system.

  • Start the engine. Let it idle for 10–15 minutes.
  • Shut off the engine. Let it cool down for 1–1.5 hours. Detach the lowest cooling system pipe and drain the distilled water into a prepared container.

  • If the distilled water you drained is dirty, repeat the procedure.
  • When the system is flushed, make sure you’ve completely drained the distilled water. Fill the system with new coolant. The required amount is specified in your vehicle manual.
  • If the pipes and radiator are very dirty, use a cooling system cleaner.
  • Be sure to study the product instructions for the chemical. Pour it into the cooling system. The required amount is specified in the instructions.

Start the engine and let it idle for the time specified in the product instructions.

  • Start the engine and let it idle for the time specified in the product instructions.
  • Shut off the engine and let it cool down for 1–1.5 hours.
  • After the time specified in the instructions has passed, detach the lowest cooling system pipe and drain the cleaner into a prepared container.
  • Repeat the procedure if needed.

  • After the system is flushed, make sure you’ve completely drained the chemical. Fill the system with new coolant. The required amount is specified in your vehicle manual.

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