It is never enjoyable to hear a noise in your car that you don’t know the cause of. So, what if you recognize a loud noise that remains on your Mercedes Classe Glc? It is very possible that this is a minor problem, but before beeing sure, it is better to operate some verifications. 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 made this content to help you solve it. First, we will point out the possible reasons for the trouble according to when loud noise appears on your Mercedes Classe Glc, and then we will give attention to the region of origin of the noise. In any case, if this noise remains, follow these instructions to help you find the origin.
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When does my Mercedes Classe Glc produce a loud noise?
One way to find a noise from your Mercedes Classe Glc is to define when it shows up. Indeed, some trouble can be connected to parts that are only stressed under certain circumstances. It is this approach that we will focus on in this first part.
Loud noise Mercedes Classe Glc when accelerating
Loud noise on Mercedes Classe Glc that happens when you are accelerating can be symptomatic of multiple failures. Indeed, if you feel 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. In addition, it is also highly possible that loud noise on your Mercedes Classe Glc is connected to a wheel bearing, which is one of the most common origins 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 possible that the problem 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 Mercedes Classe Glc is stopped
If your Mercedes Classe Glc 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 Mercedes Classe Glc and how can I be sure of its origin?
Now that we have identified the source of the sound, we will deal with the verification stage to be certain that this is the issues you are experiencing.
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The loud noise comes from the wheels of my Mercedes Classe Glc
As we have seen previously, loud noise from the wheels of your Mercedes Classe Glc may be in connection with two main complications. 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 Mercedes Classe Glc that is the problem, you will tend to feel a vibration in the direction of the vehicle as you go faster. In both cases, you will have to go to your technician to change the tires or accomplish a balancing.
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The loud noise comes from the engine of my Mercedes Classe Glc
In case you have identified loud noise as coming from the engine of your Mercedes Classe Glc, 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 Mercedes Classe Glc 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 check that the engine idle speed is not random. In case you confirm one of these two problems, take your vehicle to your garage .
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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 Mercedes Classe Glc, it is highly possible 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 Mercedes Classe Glc, that a part has been cut off due to wear, or, finally, that a clamp has become loose due to vibrations. To ensure 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.
