It is never enjoyable to notice a sound in your car that you don’t know the cause of. So, what if you discover a loud noise that lasts on your Audi A6? It is extremely plausible that this is a minor problem, but before beeing sure, it is better to execute some checks. Whether that loud noise comes from the front of the car, 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 describe the possible causes for the issue according to when loud noise appears on your Audi A6, and then we will give attention to the region of origin of the noise. In any case, if this noise continues, follow these advice to help you find the source.
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When does my Audi A6 produce a loud noise?
One way to discern a noise from your Audi A6 is to identify when it appears. Indeed, some trouble can be linked to parts that are only stressed under certain conditions. It is this approach that we will focus on in this first part.
Loud noise Audi A6 when accelerating
Loud noise on Audi A6 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 generate a much higher noise than during normal use. In addition, it is also highly plausible that loud noise on your Audi A6 is related to a wheel bearing, which is one of the most common origins of these types of signs of illness. Another alternative 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 gains speed.
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When my Audi A6 is stopped
If your Audi A6 makes a loud noise while not accelerating, engine on, the problem may be connected to poor air intake. An air intake hose that has come loose or has a hole in it may be the induce.
Where does loud noise come from on my Audi A6 and how can I be sure of its origin?
Now that we have uncovered the cause of the sound, we will look into the verification stage to be sure that this is the issues you are enduring.
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The loud noise comes from the wheels of my Audi A6
As we have seen earlier in this article, loud noise from the wheels of your Audi A6 may be connected to 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 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 change it or them right away. 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 Audi A6 that is the trouble, you will tend to feel a vibration in the direction of the vehicle as you go faster. In both situations, you will have to go to your mechanic to swap the tires or execute a balancing.
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The loud noise comes from the engine of my Audi A6
In case you have identified loud noise as coming from the engine of your Audi A6, 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 Audi A6 is related to air intake, the control 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 verify that the engine idle speed is not random. In case you confirm one of these two trouble, 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 discovered comes from the exhaust pipe of your Audi A6, it is highly plausible 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 Audi A6, 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 car 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.
