It is never relaxing to perceive a noise in your vehicle that you don’t know the source of. So, what if you detect a loud noise that is persistant on your Bmw Serie 1 F21? It is highly possible that this is a minor trouble, but before beeing sure, it is better to do some inspections. 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 created this article to help you solve it. First, we will detail the possible reasons for the issue according to when loud noise appears on your Bmw Serie 1 F21, and then we will focus on the region of origin of the noise. In any case, if this noise persists, follow these instructions to help you find the source.
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When does my Bmw Serie 1 F21 produce a loud noise?
One way to detect a noise from your Bmw Serie 1 F21 is to establish when it occurs. Indeed, some trouble can be connected to components that are only stressed under certain types of conditions. It is this approach that we will focus on in this first part.
Loud noise Bmw Serie 1 F21 when accelerating
Loud noise on Bmw Serie 1 F21 that shows up 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 induce a much higher noise than during normal process. In addition, it is also highly possible that loud noise on your Bmw Serie 1 F21 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 possible 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 Bmw Serie 1 F21 is stopped
If your Bmw Serie 1 F21 makes a loud noise while not accelerating, engine on, the trouble may be connected 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 Bmw Serie 1 F21 and how can I be sure of its origin?
Now that we have identified the source of the noise, we will concentrate on the verification stage to make sure that this is the issues you are experiencing.
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The loud noise comes from the wheels of my Bmw Serie 1 F21
As we have seen earlier in this article, loud noise from the wheels of your Bmw Serie 1 F21 may be connected to 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 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 right 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 Bmw Serie 1 F21 that is the matter, 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 mechanic to change the tires or perform a balancing.
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The loud noise comes from the engine of my Bmw Serie 1 F21
In case you have discovered loud noise as coming from the engine of your Bmw Serie 1 F21, 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 encounter a power loss during your acceleration. If the loud noise on your Bmw Serie 1 F21 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 verify 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 found comes from the exhaust pipe of your Bmw Serie 1 F21, 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 Bmw Serie 1 F21, that a part has been cut off due to wear, or, finally, that a clamp has become loose due to vibrations. To confirm this, get help from someone who will stand under the vehicle 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.
