Who hasn’t found himself in the situation where his car doesn’t start one morning on the way to work? If it never happened to you , at minimum you’ve already had that apprehension. So when you discover an alternator noise on Audi Q7, you can already imagine yourself breaking down, stuck waiting for the tow truck. That’s why our team has decided to produce this post to support you locate the sources of alternator sounds. In this article, you will first discover the role and functions of the alternator in your Audi Q7 and then what the causes and solutions to alternator noise on Audi Q7 may be.
Role and alternator operation Audi Q7
Alternator role
Your alternator is an fundamental component of your Audi Q7. Indeed, its goal is to give power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the task of charging the battery once the car is in motion, to provide power to the car in motion and to allow you to always have a sufficient energy reserve to be able to restart the next time.
Alternator functioning
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The alternator works on an electrical principle that has been used for decades, the principle of copper coil wound around a magnet . This coil while spinning creates electricity. It is the engine itself that will provide the energy needed by the alternator to create the energy, via the accessory belt or alternator belt. When your Audi Q7 engine stops, the battery takes over to provide the car with energy.
What are the several alternator noises or sounds on my Audi Q7 and what are the causes?
I find out a knocking noise from the alternator of my Audi Q7
One of the typical noises of a tired alternator on Audi Q7 is a knocking noise. This alternator sound on Audi Q7 will most of the time happen when your engine is idling, it can be connected to voltage drops that could disrupt the normal operation of electrical elements such as headlights for example. In most cases, it is a of both bearings of the alternator that is faulty, to check it, use a multimeter on the terminals of your car with the engine running and you must look for a value between 12 and 14.7 volts, which means that your alternator is charging your battery well. If the value is lower, the alternator of your Audi Q7 is tired and you should think about changing the bearing if it is the only cause otherwise the entire part.
I discover a grinding noise coming from the alternator of my Audi Q7
If you are in the case where the alternator of your Audi Q7 generates grinding sounds, in this circumstance you will have to check it more seriously. This sign can testify as for the knocking sound of a tired bearing, however , usually, we generally realize by looking more closely that it is the accessory belt that is loosened or worn and is therefore the cause of it. In this circumstance, we encourage that you look for advice this document to find all the necessary information to solve an accessory belt noise on Audi Q7.
I discover a loud noise from the alternator of my Audi Q7
Listening a loud noise from the alternator of your Audi Q7 is quite regular, in fact, it emits an audible sound when producing the electrical pulses it generates. It is up to you to check that the battery indicator light on your dashboard does not show up, and that you do not have a voltage drop when your engine is running (headlight or dashboard light that jumps for example. If this noise is too loud, we encourage that you have a look this document to find other ways to solve problem of noises from front end on Audi Q7.
