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Cooling System Hoses

The radiator is what keeps your car engine from overheating and “blowing up”!

And the hoses provide the life blood for this process – cooling water.

Garden hose
Garden hose (Photo credit: Jeff / Godfrey)


When a radiator hose is nearing the end of its life it is better to have it replaced before it splits and causes the car engine to overheat.

As hoses age, they can become soft and swollen and are more likely to split. At other times the rubber becomes hard and can crack and leak.

When a hose needs replacing or has recently been replaced, consideration should be given to replacing the rest of the cooling system hoses as they also are subject to the same wear and tear.

It is generally more economical to change all hoses at the same time, rather than one by one. This has the added advantages of:

English: A dirty wire-type hose clamp on a car...
English: A dirty wire-type hose clamp on a car’s radiator hose. I took this picture myself, and am releasing it under the GFDL. (Photo credit: Wikipedia)
  • allowing a thorough flush of the cooling system, and
  • you only need one dose of new coolant additives.

It also saves the further inconvenience of another hose failing soon after one has been replaced which means more time in the workshop.

The radiator cap and thermostat are also vital components in a car’s cooling system and should also be considered for testing and replacement.

The cost of this type of preventive maintenance is far less than repairing the consequences of a badly overheated engine.


You can refer to your vehicle owner’s manual for recommended intervals or your Bosch Auto Service NDM Labrador & Biggera Waters, QLD auto repair mechanic will be happy to advise you.

REMEMBER: Money spent on maintenance can save costly repairs.

We are happy to answer any more questions you may have regarding Service Intervals.

Bosch Auto Service
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