It is never enjoyable to hear a sound in your car that you don’t know the starting point of. So, what if you find a loud noise that persists on your Bmw Serie 4 F33? It is extremely plausible that this is a minor issue, 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 created this article to help you fix it. First, we will point out the possible explanations for the problem according to when loud noise shows up on your Bmw Serie 4 F33, and then we will look into the region of origin of the noise. In any case, if this noise lasts, follow these instructions to help you find the origin.
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When does my Bmw Serie 4 F33 produce a loud noise?
One way to discover a noise from your Bmw Serie 4 F33 is to determine when it appears. Indeed, some trouble can be linked to parts that are only stressed under certain conditions. It is this technique that we will focus on in this first part.
Loud noise Bmw Serie 4 F33 when accelerating
Loud noise on Bmw Serie 4 F33 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 provoke a much higher noise than during normal operation. In addition, it is also highly plausible that loud noise on your Bmw Serie 4 F33 is linked 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 issue 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 4 F33 is stopped
If your Bmw Serie 4 F33 makes a loud noise while not accelerating, engine on, the issue 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 4 F33 and how can I be sure of its origin?
Now that we have determined the cause of the sound, we will look into the verification stage to be sure that this is the concern you are encountering.
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The loud noise comes from the wheels of my Bmw Serie 4 F33
As we have seen earlier in this article, loud noise from the wheels of your Bmw Serie 4 F33 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 bear in mind 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 swap it or them quickly. If it is a deformed tire, make sure to visually check the entire tread area for linearity. If it is the balancing of the wheels of your Bmw Serie 4 F33 that is the problem, you will tend to feel a vibration in the direction of the car as you go faster. In both cases, you will have to go to your technician to swap the tires or accomplish a balancing.
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The loud noise comes from the engine of my Bmw Serie 4 F33
In case you have discovered loud noise as coming from the engine of your Bmw Serie 4 F33, 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 Bmw Serie 4 F33 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 examine that the engine idle speed is not random. In case you confirm one of these two problems, take your car 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 Bmw Serie 4 F33, 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 Bmw Serie 4 F33, 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 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.
