It is never relaxing to find out a noise in your vehicle that you don’t know the starting point of. So, what if you find a loud noise that continues on your Volkswagen Passat 8? It is extremely plausible that this is a minor trouble, but before beeing sure, it is better to do some inspections. 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 created this content to help you fix it. First, we will describe the possible explanations for the problem according to when loud noise appears on your Volkswagen Passat 8, and then we will focus on the region of origin of the noise. In any case, if this noise continues, follow these recommendations to help you find the source.
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When does my Volkswagen Passat 8 make a loud noise?
One way to discern a noise from your Volkswagen Passat 8 is to define when it appears. Indeed, some concerns can be related to components that are only stressed under certain circumstances. It is this method that we will focus on in this first part.
Loud noise Volkswagen Passat 8 when accelerating
Loud noise on Volkswagen Passat 8 that appears when you are accelerating can be symptomatic of several failures. In fact, if you encounter a noise that is louder and louder when you accelerate, it can come from a faulty turbo that will cause a much higher noise than during normal operation. In addition, it is also highly plausible that loud noise on your Volkswagen Passat 8 is associated with a wheel bearing, which is one of the most common causes of these types of manifestations. Another possibility is that your exhaust pipe may have holes or a collar may have become loose. Finally, it is also plausible that the trouble may come from a deformed tire or an unbalanced wheel that will tend to vibrate as it increases speed.
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When my Volkswagen Passat 8 is stopped
If your Volkswagen Passat 8 makes a loud noise while not accelerating, engine on, the trouble may be in connection with 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 Passat 8 and how can I be sure of its origin?
Now that we have defined the source of the noise, we will look into the verification stage to be sure that this is the issues you are enduring.
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The loud noise comes from the wheels of my Volkswagen Passat 8
As we have seen earlier in this article, loud noise from the wheels of your Volkswagen Passat 8 may be in connection with 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 consider to check 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 swap it or them as soon as possible. If it is a deformed tire, don’t forget to visually check the entire tread area for linearity. If it is the balancing of the wheels of your Volkswagen Passat 8 that is the matter, you will tend to feel a vibration in the direction of the vehicle as you go faster. In both situations, you will have to go to your technician to replace the tires or do a balancing.
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The loud noise comes from the engine of my Volkswagen Passat 8
In case you have identified loud noise as coming from the engine of your Volkswagen Passat 8, the two most likely causes are turbo and air intake. In the first case, a turbo failure may also be connected 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 Passat 8 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 cause an air intake, if it is just disconnected you can reconnect the air intake tubes yourself. Then check that the engine idle speed is not random. In case you confirm one of these two problems, take your vehicle to your mechanic .
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Loud noise comes from the exhaust pipe of the vehicle
If the noise you have found comes from the exhaust pipe of your Volkswagen Passat 8, 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 Passat 8, that a part has been cut off due to wear, or, finally, that a clamp has become loose due to vibrations. To confirm this, get help from someone who will stand under the automobile while you accelerate to find the exact area of source 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.
