Tips Sahabat

Signs of a Damaged Car Radiator Hose That Needs Replacement

09 April 2025
selang radiator rusak

The radiator hose is often considered unimportant, yet it is one of the components that is beneficial as a car engine cooler. The radiator hose functions to channel hot engine water to the radiator for cooling. It is certainly very important to know the signs that the radiator hose needs to be replaced to ensure it continues to function properly.

A radiator hose that does not function properly will affect the cooling system. In fact, this can cause severe damage to the car engine. Therefore, you need to check the radiator hose carefully and thoroughly.   So, what are the signs that the radiator hose needs to be replaced? Here is the complete explanation.

Here Are the Signs That the Radiator Hose Needs to Be Replaced That You Should Know

The radiator hose can suffer damage if not maintained and cleaned regularly. Here are the signs that the radiator hose needs to be replaced:  

1. Torn / Cracked

The most obvious sign that the radiator hose needs to be replaced is if it is torn or cracked. A torn or cracked radiator hose can cause radiator water leaks. Such a condition can lead to severe damage to the engine, such as a bent cylinder head, stuck piston, and scratched cylinder block.

Damage to the radiator hose can be caused by various factors, such as prolonged use, friction with other objects around the hose, and sharp stones while driving. If the radiator hose is in this condition, it is advisable to replace it with a new one immediately.

2. Hard and Cracked

The next sign that the radiator hose needs to be replaced is if it has become hard and cracked. Typically, the radiator hose is made of rubber with threads in the middle. If the radiator hose feels hard when held, it should be replaced immediately.

A radiator hose can become hard and cracked usually due to prolonged usage and the workload of the radiator. However, there are some conditions where the radiator hose looks good from the outside but feels hard and has many cracks when held.

3. Swelling Under Pressure

The radiator hose is made of strong thread interweaving. This is intended so that the radiator hose does not easily change shape when subjected to high pressure and does not easily swell.  

If the radiator hose swells when under pressure, it means that the thread interweaving in the radiator hose has broken. This causes the radiator hose to bulge. Of course, if left unchecked, it could burst and cause the engine to overheat.

4. Usage Over 5 Years

A sign that the radiator hose needs to be replaced is when it has been used for more than 5 years. This is because the lifespan of a radiator hose usually only lasts up to 5 years. To maximize the use of the radiator hose, do not exceed its time limit.

If the radiator hose has been in use for over 5 years, signs of damage like those mentioned above will usually appear. Therefore, it is very important to check and replace the radiator hose if such signs appear.

5. Puddles Under the Radiator

Puddles under the radiator are usually caused by a leaking hose. To find out more clearly, you can check the radiator hose. Whether the puddle is caused by a hose leak or other cooling system issues.

Well, those are various signs that the radiator hose needs to be replaced. If the damage to the radiator hose has worsened, it should be replaced as soon as possible. This is to avoid suboptimal cooling function of the car.

If you want the radiator hose to last and not easily leak, you can buy a car from Daihatsu. Or if your car has experienced radiator hose damage, just visit a Daihatsu workshop to get a replacement part with the original version.  

Visit our official website for complete information!

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