It is never enjoyable to perceive a noise in your vehicle that you don’t know the origin of. So, what if you identify a loud noise that remains on your Renault Megane 4? It is highly plausible that this is a minor trouble, but before beeing sure, it is better to complete some investigations. Whether that loud noise comes from the front of the vehicle, from the rear, whether it appears when you accelerate or when you are parked, our team has written this article to help you solve it. First, we will summarize the possible reasons for the problem according to when loud noise shows up on your Renault Megane 4, and then we will give attention to the region of origin of the noise. In any case, if this noise persists, follow these recommendations to help you find the source.
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When does my Renault Megane 4 make a loud noise?
One way to discern a noise from your Renault Megane 4 is to identify when it occurs. Indeed, some trouble can be linked to parts that are only stressed under certain circumstances. It is this technique that we will focus on in this first part.
Loud noise Renault Megane 4 when accelerating
Loud noise on Renault Megane 4 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. Additionally, it is also highly plausible that loud noise on your Renault Megane 4 is linked 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 trouble 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 Renault Megane 4 is stopped
If your Renault Megane 4 makes a loud noise while not accelerating, engine on, the trouble may be related 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 Renault Megane 4 and how can I be sure of its origin?
Now that we have defined the cause of the noise, we will deal with the verification stage to make certain that this is the concern you are encountering.
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The loud noise comes from the wheels of my Renault Megane 4
As we have seen before, loud noise from the wheels of your Renault Megane 4 may be related to two main problems. 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 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, remember to visually check the entire tread area for linearity. If it is the balancing of the wheels of your Renault Megane 4 that is the issue, you will tend to feel a vibration in the direction of the automobile as you go faster. In both situations, you will have to go to your auto mechanic to replace the tires or perform a balancing.
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The loud noise comes from the engine of my Renault Megane 4
In case you have discovered loud noise as coming from the engine of your Renault Megane 4, the two most likely causes are turbo and air intake. In the first case, a turbo failure may also be linked to 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 Renault Megane 4 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 disorders, 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 detected comes from the exhaust pipe of your Renault Megane 4, it is highly plausible that you have rust if your vehicle is old and has created holes in it over time and therefore generates a very high noise close to aircraft noise on your Renault Megane 4, 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 vehicle 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.
