It is never pleasant to notice a sound in your car that you don’t know the starting point of. So, what if you recognize a loud noise that continues on your Volkswagen Polo? It is extremely plausible that this is a minor problem, but before beeing sure, it is better to execute some checks. Whether that loud noise comes from the front of the automobile, from the rear, whether it shows up when you accelerate or when you are parked, our team has made this content to help you solve it. First, we will describe the possible reasons for the problem according to when loud noise appears on your Volkswagen Polo, and then we will concentrate on the region of origin of the noise. In any case, if this noise remains, follow these instructions to help you find the source.
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When does my Volkswagen Polo generate a loud noise?
One way to discern a noise from your Volkswagen Polo is to establish when it occurs. Indeed, some concerns can be linked to components that are only stressed under certain types of conditions. It is this method that we will focus on in this first part.
Loud noise Volkswagen Polo when accelerating
Loud noise on Volkswagen Polo that happens when you are accelerating can be symptomatic of different failures. Indeed, if you encounter a noise that is louder and louder when you accelerate, it can come from a faulty turbo that will create a much higher noise than during normal operation. Additionally, it is also highly plausible that loud noise on your Volkswagen Polo is connected to a wheel bearing, which is one of the most common origins of these types of signs of illness. Another possibility is that your exhaust pipe may have holes or a collar may have become loose. Finally, it is also plausible that the problem may come from a deformed tire or an unbalanced wheel that will tend to vibrate as it gains speed.
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When my Volkswagen Polo is stopped
If your Volkswagen Polo makes a loud noise while not accelerating, engine on, the problem may be linked to poor air intake. An air intake hose that has come loose or has a hole in it may be the cause.
Where does loud noise come from on my Volkswagen Polo and how can I be sure of its origin?
Now that we have located the origin of the sound, we will focus on the verification stage to be certain that this is the matter you are enduring.
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The loud noise comes from the wheels of my Volkswagen Polo
As we have seen earlier in this article, loud noise from the wheels of your Volkswagen Polo may be linked to two main trouble. If it is one of your tired bearings, it will tend to make a thumping noise that intensifies when it is under stress (spins faster and faster). So keep in mind to examine by driving “fast” (neutral gear on and window open to hear only the noise of the wheels) that the noise is located here, if this is the case replace it or them straight away. If it is a deformed tire, remember to visually check the entire tread area for linearity. If it is the balancing of the wheels of your Volkswagen Polo that is the issue, you will tend to feel a vibration in the direction of the automobile as you go faster. In both cases, you will have to go to your auto mechanic to change the tires or execute a balancing.
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The loud noise comes from the engine of my Volkswagen Polo
In case you have discovered loud noise as coming from the engine of your Volkswagen Polo, the two most likely causes are turbo and air intake. In the first case, a turbo failure may also be associated with a compression loss during the engine ramp-up phase, so you should experience a power loss during your acceleration. If the loud noise on your Volkswagen Polo is related to air intake, the check will be done mainly visually, check all your air intake hoses by a visual control in your engine block to be sure that it is not damaged or disconnected which would induce an air intake, if it is just disconnected you can reconnect the air intake tubes yourself. Then examine that the engine idle speed is not random. In case you confirm one of these two problems, take your automobile to your service garage .
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Loud noise comes from the exhaust pipe of the vehicle
If the noise you have recognized comes from the exhaust pipe of your Volkswagen Polo, it is highly plausible that you have rust if your automobile is old and has created holes in it over time and therefore generates a very high noise close to aircraft noise on your Volkswagen Polo, that a part has been cut off due to wear, or, finally, that a clamp has become loose due to vibrations. To validate this, get help from someone who will stand under the automobile while you accelerate to find the exact area of origin of this noise. If it is a hole, you can repair it with a putty provided for this purpose, or, if it is a collar, “reattach” it. If it is cut or the hole is too big, it is better to get closer to your mechanic.
