Radiator Flush

What is flushing a radiator all about?

A radiator flush is undertaken to clean out all the old coolant and anti-freeze mixture in your car’s cooling system. By pumping quantities of radiator cleaning solution through the system, the process removes contaminants, scale and rust particles that build up over time, allowing a new, clean and fresh mixture to take its place.

Keep in mind:

  • Old coolant mixtures can become corrosive and abrasive, particularly in modern aluminium engines.
  • The new coolant mixture has a lubricating property that helps keep your water pump in good condition.
  • A new mixture generates less foam, improving cooling performance.

How it’s done:

  • Remove the radiator cap and drain plug
  • Drain the old mixture into a container
  • Replace the radiator drain plug and fill it with radiator flushing solution and water
  • Restart the engine and run until the temperature gauge is at its normal position.
  • Set the heater to its highest position
  • Switch off and allow the engine to cool, then drain the radiator completely
  • Replace the drain plug and refill the radiator with the correct proportion of anti-freeze and water

Our recommendation:

Have a mechanic do this service. They will know the correct procedures, have the appropriate containers and fluids, and responsibly dispose of the toxic anti-freeze mixture.

What is a common symptom indicating you need to flush the radiator?

  • A temperature gauge that has moved higher than its normal position.

How important is this service?

An overheating engine, burst water hoses, or broken water pump can strand you at the side of the road without warning. The procedure is a good idea even when symptoms are not present if you feel that the car has gone a long way without paying attention to the cooling system. As preventive maintenance, it provides peace of mind.

Description

Radiator Flush

What is flushing a radiator all about?

A radiator flush is undertaken to clean out all the old coolant and anti-freeze mixture in your car’s cooling system. By pumping quantities of radiator cleaning solution through the system, the process removes contaminants, scale and rust particles that build up over time, allowing a new, clean and fresh mixture to take its place.

Keep in mind:

  • Old coolant mixtures can become corrosive and abrasive, particularly in modern aluminium engines.
  • The new coolant mixture has a lubricating property that helps keep your water pump in good condition.
  • A new mixture generates less foam, improving cooling performance.

How it’s done:

  • Remove the radiator cap and drain plug
  • Drain the old mixture into a container
  • Replace the radiator drain plug and fill it with radiator flushing solution and water
  • Restart the engine and run until the temperature gauge is at its normal position.
  • Set the heater to its highest position
  • Switch off and allow the engine to cool, then drain the radiator completely
  • Replace the drain plug and refill the radiator with the correct proportion of anti-freeze and water

Our recommendation:

Have a mechanic do this service. They will know the correct procedures, have the appropriate containers and fluids, and responsibly dispose of the toxic anti-freeze mixture.

What is a common symptom indicating you need to flush the radiator?

  • A temperature gauge that has moved higher than its normal position.

How important is this service?

An overheating engine, burst water hoses, or broken water pump can strand you at the side of the road without warning. The procedure is a good idea even when symptoms are not present if you feel that the car has gone a long way without paying attention to the cooling system. As preventive maintenance, it provides peace of mind.

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What our customers have to say about Fixxr

Excellent Service by Tony Da Silva

Tony was assigned to my rescue when my vehicle was not starting in the morning. Initially our appointment was scheduled at 16:30 through our communication during the day we both agreed that he can come at anytime once he has done with his other duties. He arrived an hour early at 15:30. As pro he immediately diagnosed the problem of my vehicle. The problem has been sorted now and the car is able to start smoothly. His level of professionalism and customer oriented is out of this world. Keep up with the good work Tony and Thank you.
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12 April 2025

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9 April 2025

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14 April 2025

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23 April 2025

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10 March 2025

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12 March 2025

I just wanted to say a huge thank you for getting my vehicle back on the road! I really appreciate all the hard work and effort you put in to complete everything on time

I just wanted to say a huge thank you for getting my vehicle back on the road! I really appreciate all the hard work and effort you put in to complete everything on time. You all did an amazing job!
Constantine M
10 March 2025

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