Cooling System Repairs in Northern Rivers

Keeping Cars Cool

Keep your engine in excellent running condition and avoid expensive engine repairs, especially during the scorching summer months! At Main Arm Mechanical, we provide a variety of cooling system and overheating repair services, including:


  • Changing fan & drive belts
  • Testing & replacing thermostats & radiators
  • Conducting cooling system leakage tests
  • Replacing water pumps, heater hoses & taps & radiator hoses
  • Coolant flushing & replenishments


When your engine is already overheating, it may be too late. Our team can help you identify potentially problematic areas of your cooling system and avoid unnecessary costs down the road.

Car Radiator — Cooling System Repairs In Mullumbimby, NSW
A/C Manifold Gauges Set — Cooling System Repairs In Mullumbimby, NSW

Our inspections cover the following:

  • Coolant levels
  • Mechanical fan clutch noise, stiffness, looseness & blade damages
  • Fan belt wear, cracks, adequate tension & alignment of pulleys
  • Cooling fan noise, wiring & blade conditions
  • Fan shroud mounting, ensuring it neither blocks airflow nor interferes with the cooling fan
  • Hose condition & tightness of clamps
  • Radiator leaks, corrosions & other signs of wear
  • Radiator cap fit & condition
  • Water pump condition, including its pulleys


Call us today to book your car in.

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Frequently Asked Questions

Water can help maintain your engine’s cool temperature but not as well as a coolant. Coolants have significantly higher boiling temperatures compared to water, which means your engine can stay cool under extremely hot weather conditions.

Anti-freeze is a key component of coolants, which is made up of 50% water and 50% anti-freeze. Its purpose is to bring down the freezing temperature of the liquid that circulates in the cooling system so that during winter, it does not freeze. Anti-freeze also helps raise the boiling temperature of said liquid so it doesn’t evaporate and can keep engines cool even in extremely hot weather.

Once the engine overheats and you continue to drive, the cylinder heads will start to warp. If you continue doing this, the head gaskets will eventually blow up, resulting in very costly and lengthy engine repairs.

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