It is never enjoyable to find out a sound in your vehicle that you don’t know the cause of. So, what if you discover a loud noise that persists on your Renault Megane 3? 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 car, from the rear, whether it shows up when you accelerate or when you are parked, our team has written this article to help you fix it. First, we will describe the possible reasons for the issue according to when loud noise appears on your Renault Megane 3, 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 Renault Megane 3 produce a loud noise?
One way to discern a noise from your Renault Megane 3 is to determine when it occurs. Indeed, some concerns can be connected to parts that are only stressed under certain types of conditions. It is this process that we will focus on in this first part.
Loud noise Renault Megane 3 when accelerating
Loud noise on Renault Megane 3 that shows up when you are accelerating can be symptomatic of different failures. Indeed, if you feel 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. In addition, it is also highly plausible that loud noise on your Renault Megane 3 is in connection with a wheel bearing, which is one of the most common causes of these types of symptoms. 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 3 is stopped
If your Renault Megane 3 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 reason.
Where does loud noise come from on my Renault Megane 3 and how can I be sure of its origin?
Now that we have uncovered the source of the noise, we will look into the verification step to make certain that this is the concern you are having.
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The loud noise comes from the wheels of my Renault Megane 3
As we have seen earlier in this article, loud noise from the wheels of your Renault Megane 3 may be related 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 replace 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 3 that is the trouble, 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 technician to replace the tires or accomplish a balancing.
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The loud noise comes from the engine of my Renault Megane 3
In case you have identified loud noise as coming from the engine of your Renault Megane 3, the two most likely causes are turbo and air intake. In the first case, a turbo failure may also be connected to a compression loss during the engine ramp-up phase, so you should encounter a power loss during your acceleration. If the loud noise on your Renault Megane 3 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 verify that the engine idle speed is not random. In case you confirm one of these two problems, take your automobile 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 Renault Megane 3, it is highly plausible 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 Renault Megane 3, 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.
