It is never relaxing to experience a noise in your car that you don’t know the cause of. So, what if you discern a loud noise that remains on your Volkswagen Passat 7? It is very possible that this is a minor trouble, but before beeing sure, it is better to complete some inspections. Whether that loud noise comes from the front of the car, from the rear, whether it appears when you accelerate or when you are parked, our team has created this content to help you solve it. First, we will detail the possible explanations for the trouble according to when loud noise appears on your Volkswagen Passat 7, 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 origin.
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When does my Volkswagen Passat 7 generate a loud noise?
One way to detect a noise from your Volkswagen Passat 7 is to determine when it appears. Indeed, some concerns can be linked to components that are only stressed under certain occasions. It is this approach that we will focus on in this first part.
Loud noise Volkswagen Passat 7 when accelerating
Loud noise on Volkswagen Passat 7 that happens when you are accelerating can be symptomatic of different failures. Indeed, if you experience a noise that is louder and louder when you accelerate, it can come from a faulty turbo that will induce a much higher noise than during normal process. Furthermore, it is also highly possible that loud noise on your Volkswagen Passat 7 is associated with a wheel bearing, which is one of the most common causes of these types of symptoms. Another alternative is that your exhaust pipe may have holes or a collar may have become loose. Finally, it is also possible 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 7 is stopped
If your Volkswagen Passat 7 makes a loud noise while not accelerating, engine on, the trouble may be connected 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 Passat 7 and how can I be sure of its origin?
Now that we have uncovered the cause of the noise, we will deal with the verification step to be certain that this is the issues you are having.
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The loud noise comes from the wheels of my Volkswagen Passat 7
As we have seen before, loud noise from the wheels of your Volkswagen Passat 7 may be connected to two main disorders. 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 remember to verify 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 change it or them quickly. If it is a deformed tire, make sure to visually check the entire tread area for linearity. If it is the balancing of the wheels of your Volkswagen Passat 7 that is the problem, 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 technician to replace the tires or perform a balancing.
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The loud noise comes from the engine of my Volkswagen Passat 7
In case you have recognized loud noise as coming from the engine of your Volkswagen Passat 7, 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 7 is related to air intake, the control 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 verify that the engine idle speed is not random. In case you confirm one of these two trouble, take your automobile to your 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 Passat 7, it is highly possible that you have rust if your car 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 7, 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 car while you accelerate to find the exact area of starting point 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.
