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Volkswagen Jetta Water Outlet

How to Troubleshoot Your Volkswagen Jetta Water Outlet Problems

Your Volkswagen Jetta water outlet connects the lower radiator hose to the engine. It is usually made from aluminum, steel, or thermal plastic to ensure durability. However, this part would also wear out after years of use since it is exposed to the coolant, which could contain dirt and other damaging substances. Eventually, the water outlet, among others, would succumb to corrosion. When this happens, you might experience various problems that could be due to a damaged Volkswagen Jetta water outlet. Here's how you can diagnose them:

Contaminated coolant

You may not know, but your coolant may be contaminated when a certain part of the reservoir or other components corrode. When this happens, the transported coolant will most likely bring along debris as it flows through the oil lines. This could bring about clogged lines and cause engine overheating. What you can do is to check the water outlet if it has signs of wearing out or rusting. Replace it immediately to avoid coolant contamination.

Coolant leak

If lately you have been seeing a puddle forming underneath your Jetta, then that must be some of your coolant. A leaking water outlet could be the culprit behind this. Inspect your water outlet for any damage or corrosion. If there is a crack, put a thick bead of sealant into it. If there are rust spots, sand if off and then apply some sealant. Let it dry for about 20 minutes before installing it. This is only a temporary fix as the sealant could always wear out. Replace a damaged or rusted outlet with a new one to avoid leaks.

Worn-out ports

The water outlet has holes and ports for the sensors and switches. They are also made from aluminum, steel, or thermal plastic as they should be durable enough to connect with other components. However, it is inevitable that they would wear out. If the ports get cracked or broken, there would be a problem with the sensors and switches they are connected to. Conduct regular visual inspection to check on these parts to ensure that they won't cause problems that could greatly jeopardize the vehicle.

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  • How to Maintain Your Volkswagen Jetta Water Outlet 27 February 2013

    Whether your Volkswagen Jetta's water outlet is made of high-quality steel, aluminum, or even durable thermal plastic, it is always at risk of premature wear, just like your vehicle's other components. Steel will corrode, while plastic will eventually crack or break. Still, you can make the most out of your water outlet. While it is still early to do preventive maintenance, you can keep the Volkswagen Jetta water outlet from wearing out fast. Here are some tricks that you can try at home:


    Perform coolant flush regularly.

    Ensuring that you coolant is clear from contaminants is enough to keep your water outlet free from damaging factors, such as dirt and rust. Flush your coolant reservoir once a year to get rid of the unnecessary debris that could get trapped on the water outlet. You can also do a regular coolant drain as often as you can to maintain your clean coolant reservoir and water outlet.


    Replace the corroded water outlet.

    A rusty and cracked water outlet doesn't seem to be useful at all, since it can also be a source of contaminants for the coolant. Whether the gasket, the port, or the water outlet itself is already corroded, replace the entire part with a new one immediately to ensure that your engine will not suffer from overheating problems brought about by a defect in the radiator.


    Rustproof the replacement part.

    If you are about to replace your water outlet with a new one, consider applying a generous amount of rustproofing spray or paint to the entire part as well as the gaskets before installing it. This way, you are preventing the major culprit of premature wear even before it starts. Make sure to cover all areas of the water outlet when applying the rustproofing.


    Check it for cracks or damage.

    Coolant leaks can cause a major problem once it gets in your vehicle's other components. Inspect your water outlet for cracks or damage where the coolant could leak. Change the outlet with a new one if the crack or the damage can no longer be fixed or covered by a sealant.