It is never pleasant to notice a sound in your automobile that you don’t know the origin of. So, what if you discern a loud noise that continues on your Bmw Serie 7? It is extremely possible that this is a minor trouble, but before beeing sure, it is better to complete some checks. 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 created this article to help you fix it. First, we will detail the possible explanations for the trouble according to when loud noise shows up on your Bmw Serie 7, and then we will concentrate on the region of origin of the noise. In any case, if this noise remains, follow these recommendations to help you find the source.
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When does my Bmw Serie 7 produce a loud noise?
One way to discern a noise from your Bmw Serie 7 is to determine when it shows up. Indeed, some trouble can be related to parts that are only stressed under certain occasions. It is this process that we will focus on in this first part.
Loud noise Bmw Serie 7 when accelerating
Loud noise on Bmw Serie 7 that appears when you are accelerating can be symptomatic of different 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 create a much higher noise than during normal operation. In addition, it is also highly possible that loud noise on your Bmw Serie 7 is linked to 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 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 Bmw Serie 7 is stopped
If your Bmw Serie 7 makes a loud noise while not accelerating, engine on, the trouble 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 cause.
Where does loud noise come from on my Bmw Serie 7 and how can I be sure of its origin?
Now that we have defined the source of the noise, we will deal with the verification step to be sure that this is the issues you are having.
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The loud noise comes from the wheels of my Bmw Serie 7
As we have seen before, loud noise from the wheels of your Bmw Serie 7 may be in connection with 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 remember to examine 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 Bmw Serie 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 mechanic to replace the tires or do a balancing.
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The loud noise comes from the engine of my Bmw Serie 7
In case you have identified loud noise as coming from the engine of your Bmw Serie 7, 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 Bmw Serie 7 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 examine 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 discovered comes from the exhaust pipe of your Bmw Serie 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 Bmw Serie 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 origin 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.
