Did you ever had this trouble trying to start your car in the morning and it doesn’t work ? If that didn’t happen to you, certainly you’ve already had that apprehension. So when you hear an alternator noise on Volkswagen Polo 6, you can already imagine yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to produce this content to help you find the origins of alternator sounds. In this article, you will first discover the role and functions of the alternator in your Volkswagen Polo 6 and then what the causes and solutions to alternator noise on Volkswagen Polo 6 may be.
Role and alternator operation Volkswagen Polo 6
Alternator role
Your alternator is an vital part of your Volkswagen Polo 6. Indeed, its mission is to give power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the mission of charging the battery once the car is in motion, to provide power to the car in motion and to let 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 concept of copper coil wound around a magnet . This coil while rotating creates electricity. It is the engine itself that will furnish the energy needed by the alternator to generate the energy, via the accessory belt or alternator belt. When your Volkswagen Polo 6 engine stops, the battery takes over to furnish the car with energy.
What are the different alternator noises or sounds on my Volkswagen Polo 6 and what are the causes?
I find out a knocking noise coming from the alternator of my Volkswagen Polo 6
One of the typical noises of a tired alternator on Volkswagen Polo 6 is a knocking noise. This alternator sound on Volkswagen Polo 6 will generally happen when your engine is idling, it can be linked to voltage drops that could disrupt the normal operation of electrical elements such as headlights for example. Most often, it is a of both bearings of the alternator that is faulty, to examine it, use a multimeter on the terminals of your car with the engine running and you must obtain 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 Volkswagen Polo 6 is tired and you should think about changing the bearing if it is the only cause otherwise the whole part.
I hear a grinding noise coming from the alternator of my Volkswagen Polo 6
If you are in the situation where the alternator of your Volkswagen Polo 6 produces grinding sounds, in this case you will have to check it more seriously. This indicator can testify as for the knocking sound of a tired bearing, but generally, we often realize by looking more carefully that it is the accessory belt that is loosened or worn and is therefore the cause of it. In this case, we advise that you look for advice this content to find all the necessary details to solve an accessory belt noise on Volkswagen Polo 6.
I hear a loud noise from the alternator of my Volkswagen Polo 6
Listening a loud noise from the alternator of your Volkswagen Polo 6 is quite typical, in fact, it produces an audible sound when creating the electrical pulses it generates. It is up to you to examine 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 advise that you take a look at this content to find other ways to solve problem of noises from front end on Volkswagen Polo 6.
