Did you ever had this trouble trying to start your car in the morning and it doesn’t work ? If it never happened to you , certainly you’ve already had that fear. So when you listen to an alternator noise on Volkswagen Polo 8, you can already see yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to produce this post to help you locate the origins of alternator sounds. In this article, you will first see the role and operation of the alternator in your Volkswagen Polo 8 and then what the causes and solutions to alternator noise on Volkswagen Polo 8 may be.
Role and alternator operation Volkswagen Polo 8
Alternator role
Your alternator is an vital part of your Volkswagen Polo 8. Indeed, its task is to give power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the mission of recharging the battery once the vehicle is in motion, to provide power to the vehicle in motion and to let you to always have a enough energy source 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 rotating generates electricity. It is the engine motor itself that will furnish the energy requested by the alternator to create the energy, via the accessory belt or alternator belt. When your Volkswagen Polo 8 engine stops, the battery takes over to furnish the vehicle with energy.
What are the several alternator noises or sounds on my Volkswagen Polo 8 and what are the causes?
I discover a knocking noise caused by the alternator of my Volkswagen Polo 8
One of the typical noises of a tired alternator on Volkswagen Polo 8 is a knocking noise. This alternator sound on Volkswagen Polo 8 will most of the time happen when your engine is idling, it can be linked to voltage drops that could disrupt the normal operation of electrical parts such as headlights for example. In general, it is a of both bearings of the alternator that is faulty, to check it, use a multimeter on the terminals of your vehicle with the engine running and you must get a value between 12 and 14.7 volts, which means that your alternator is recharging your battery well. If the value is lower, the alternator of your Volkswagen Polo 8 is tired and you should think about changing the bearing if it is the only reason otherwise the whole part.
I listen to a grinding noise coming from the alternator of my Volkswagen Polo 8
If you are in the situation where the alternator of your Volkswagen Polo 8 produces grinding sounds, in this circumstance you will have to look at it more seriously. This symptom can testify as for the knocking sound of a tired bearing, but usually, we generally notice by looking more carefully that it is the accessory belt that is loosened or worn and is therefore the reason of it. In this circumstance, we advise that you look for advice this article to find all the necessary details to solve an accessory belt noise on Volkswagen Polo 8.
I listen to a loud noise from the alternator of my Volkswagen Polo 8
Listening a loud noise from the alternator of your Volkswagen Polo 8 is quite regular, in fact, it emits an audible sound when creating 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 advise that you look into this article to find other ways to solve problem of noises from front end on Volkswagen Polo 8.
