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Maintenance Volkswagen parts are prone to wear out through overuse. In most cases, these parts are indispensable and they will have to be replaced immediately. The Volkswagen radiator hose is one of the more important parts that require regular maintenance. Directing coolant flow between the engine and the radiator, the Volkswagen radiator hose forms the backbone of the Volkswagen cooling system.

Most Volkswagen cars today carry molded radiator hose designs made of a highly flexible rubber compound. On account of the heated coolant from the engine that it circulates, and the hot underhood condition, the Volkswagen radiator hose takes pains to withstand high heat. Continuous contact with hot fluids causes the hose to get hard and brittle. Over time, coolant can leak out of the brittle portion of the radiator hose.

Routine inspection of your Volkswagen radiator hose can prevent leaks from happening. Lift and open your car's hood. You will find the radiator at the front, directly behind the Volkswagen grill. There will be two radiator hoses. The first one is located on top of the radiator. This is the hose that delivers hot coolant to be cooled by the radiator and is more prone to leaks. The second radiator hose is located on the bottom of the radiator. This hose flows the cooled coolant back to the engine block.

Run your hand along each hose. They should not be brittle, overly soft, or swollen. Give each hose a good squeeze. If cracks show or new cracks are formed, it is a good time to replace your Volkswagen radiator hose. If coolant is already leaking, determine first the source of the leak before replacing the hose. You can do this by looking for wet spots on the hose surface. If you do not find any, check the clamp holding at the end of each hose and if the leak is coming from there, a loose clamp may be causing the leak. Get a screwdriver and tighten the clamp holding.

Little things like radiator hose inspection can prevent overheating your car on the road. Keep in mind that the rubber radiator hose works in a harsh underhood condition. Like other maintenance parts, a radiator hose needs to be regularly inspected, and replaced at the first sign of coolant leak, if the cooling system is to keep up with the Volkswagen.

Cars today offer such driving comfort that you hardly notice engine heat, even when the air conditioning is turned off. You almost forget that your Volkswagen, or any car for that matter, runs on fuel combustion which generates so much heat. This is made possible by the car's cooling system, which conducts heat away from the engine to prevent engine meltdown.

An integral part of the Volkswagen cooling system is the radiator. It cools down the coolant and water mixture circulating in the engine block to absorb the excess heat. When your car is moving forward, air enters the grill and passes through the radiator, cooling down the radiator tubes heated by the hot coolant flowing inside. This heat exchange is what makes the coolant mixture cool again. But what about when the car is not moving or just moving slowly and there isn't much air going in?

Tasked to cool down the radiator, the Volkswagen radiator fan is a failsafe to engine overheating. Mounted behind the radiator, Volkswagen radiator fans are billeted to protect the blades and direct the airflow. The fan supplies constant airflow to the radiator and aids in the cooling process.

To maintain the ideal range of engine temperature, sensors tell the Volkswagen radiator fan when to start and when to stop. When you turn your air conditioning on, the fan will automatically start because the A/C condenser has to be cooled also. You can tell that the Volkswagen radiator fan has stopped working when the gauge records a rise in engine temperature every time you come to a stop.

You can replace the factory-installed Volkswagen radiator fan with a high velocity fan if you want to improve the efficiency of the cooling system. These performance fans generate stronger airflow and dissipate hot air considerably faster, resulting in better engine performance.