Cooling hose: operation, maintenance and price

The coolant hose is a flexible hose used to transport coolant from the expansion tank. Changes in temperature and pressure can cause hose wear over time. It will then need to be replaced to ensure good engine cooling.

🚗 What is the cooling hose for?

La hose, including, in particular, cooling hose, is a flexible silicone, elastomeric or rubber hose that allows you to transport liquid or air to various components of the car.

Therefore, the hoses are treated according to the fluid to be transported: they can withstand High pressure (800 to 1200 mbar), but also at extreme temperatures (-40 ° C to 200 ° C).

Did you know? The original word durite is the French word Durit, which is a registered trademark for rubber pipes.

⚙️ What types of hoses are there?

Depending on what it carries, there are different types of hoses. The coolant hose is one of them.

Cooling hose

Cooling hose, or hose Radiator, allows you to supplycoolant to various elements of the cooling system and to the engine. Thus, this hose allows the engine to be cooled by circulating the circulating fluid.

Turbo hose

Your vehicle's intake system requires the right amount of air to enter the engine. For this there is hose turboalso called a turbocharger hose or a supercharger hose that transports air from the air filter to the engine.

Washer hose

Your vehicle is equipped with a windshield washer system to ensure good visibility. Exactly washer hose which allows the glass product to be transported from the tank to the pump and then to the nozzles.

Fuel hose

Whether it's a gasoline or diesel engine, your car needs to inject fuel into the combustion chamber. V fuel hoses allow fuel to be transported from the tank to the fuel filter and then to the engine.

🔍 Where is the cooling hose located?

Your expansion tank is equipped with two cooling hoses, a lower and an upper.

• Bottom hose : As the name suggests, it is located at the bottom of the vase. It serves to drain the cooled coolant and is less susceptible to degradation.
• Top hose : located at the top of the vessel, it is responsible for transporting hot fluid from the engine to the radiator for cooling. This is a hard rubber hose. It is often black, but it may have a different color depending on your vehicle model.

🗓️ When to change the cooling hose?

It is not a wearing part, but you may need to replace the coolant hose. This is especially true if you travel a lot. Your coolant hose is energized. Therefore, it decomposes faster and can leak.

A damaged hose can be identified by:

• Cracks or small cracks : This means that your hose is very worn out and needs to be replaced.
• of leaks : They are very easy to spot when your engine is on. The coolant will drain out and your hose will be damp. Please note that these leaks can also be caused by an improperly tightened ring. Watch out for protrusions because the liquid is dangerous and, above all, very hot. For your safety, wear protective gloves and goggles.

🔧 How to repair the cooling hose?

A leak in the lower or upper hose, small or large, unfortunately cannot be repaired. The cooling hose needs to be replaced. Here are the steps to follow to replace the coolant hose on your vehicle.

Required material:

• Toolbox
• Protective gloves
• New hose
• Coolant
• Pelvis

Step 1: shut off the engine

Work in the cold with the engine off and with the vehicle parked on a level surface. Allow the engine to cool completely before replacing the hose, otherwise you risk getting burned.

Step 2. Drain the water from the cooling system.

Drain the cooling system, being careful to collect the liquid in a container. To drain, open the plug located above the radiator, then open the drain plug. Collect the coolant in a basin until it is completely drained.

Step 3. Disconnect the coolant hose.

Open the clamps securing the hose and first detach it from the top.

Step 4: Connect the new coolant hose

Connect the new hose so that its walls do not touch other elements and tighten the clamps.

Step 5: add coolant

Add coolant to the reservoir, taking care to top up the coolant to the maximum level. Then bleed the cooling system. Your hose has been replaced!

💰 How much does the cooling hose cost?

The coolant hose only coststwenty euros and it can be purchased at many auto centers or specialized sites. If you plan to have it replaced by a professional, you will have to put extra effort and replace the coolant.

count one hundred euros additionally for a complete intervention and approximately 2 hours of immobilization, depending on the vehicle model.

The cooling hose does not, strictly speaking, wear out. But the environment and the number of kilometers traveled can affect its lifespan. Therefore, it is necessary to regularly check its condition: think about it the next time you visit the garage!