It is never pleasant to notice a sound in your automobile that you don’t know the source of. So, what if you recognize a loud noise that lasts on your Renault Megane 2? It is highly plausible that this is a minor problem, but before beeing sure, it is better to operate some inspections. Whether that loud noise comes from the front of the vehicle, from the rear, whether it happens when you accelerate or when you are parked, our team has made this article to help you fix it. First, we will describe the possible explanations for the trouble according to when loud noise appears on your Renault Megane 2, and then we will concentrate on the region of origin of the noise. In any case, if this noise lasts, follow these recommendations to help you find the source.
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When does my Renault Megane 2 make a loud noise?
One way to discover a noise from your Renault Megane 2 is to determine when it appears. Indeed, some concerns can be connected to components that are only stressed under certain conditions. It is this process that we will focus on in this first part.
Loud noise Renault Megane 2 when accelerating
Loud noise on Renault Megane 2 that appears when you are accelerating can be symptomatic of different failures. In fact, if you feel a noise that is louder and louder when you accelerate, it can come from a faulty turbo that will provoke a much higher noise than during normal use. Moreover, it is also highly plausible that loud noise on your Renault Megane 2 is related to a wheel bearing, which is one of the most common origins 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 problem 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 Renault Megane 2 is stopped
If your Renault Megane 2 makes a loud noise while not accelerating, engine on, the problem 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 reason.
Where does loud noise come from on my Renault Megane 2 and how can I be sure of its origin?
Now that we have identified the cause of the sound, we will concentrate on the verification stage to be certain that this is the issues you are going through.
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The loud noise comes from the wheels of my Renault Megane 2
As we have seen earlier in this article, loud noise from the wheels of your Renault Megane 2 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 change it or them straight away. 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 Renault Megane 2 that is the issue, you will tend to feel a vibration in the direction of the vehicle as you go faster. In both circumstances, you will have to go to your technician to change the tires or perform a balancing.
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The loud noise comes from the engine of my Renault Megane 2
In case you have discovered loud noise as coming from the engine of your Renault Megane 2, 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 encounter a power loss during your acceleration. If the loud noise on your Renault Megane 2 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 generate 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 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 Renault Megane 2, 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 2, that a part has been cut off due to wear, or, finally, that a clamp has become loose due to vibrations. To verify this, get help from someone who will stand under the vehicle 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.
