Who hasn’t found himself in the situation where his car doesn’t start one morning on the way to work? If that didn’t happen to you, at minimum you’ve already had that apprehension. So when you hear an alternator noise on Volkswagen Passat 8, you can already imagine yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to produce this article to help you find the origins of alternator sounds. In this article, you will first see the role and operation of the alternator in your Volkswagen Passat 8 and then what the causes and solutions to alternator noise on Volkswagen Passat 8 may be.
Role and alternator operation Volkswagen Passat 8
Alternator role
Your alternator is an vital part of your Volkswagen Passat 8. Indeed, its task 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 automobile is in motion, to provide power to the automobile 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 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 Passat 8 engine stops, the battery takes over to furnish the automobile with energy.
What are the distinctive alternator noises or sounds on my Volkswagen Passat 8 and what are the causes?
I notice a knocking noise from the alternator of my Volkswagen Passat 8
One of the typical noises of a tired alternator on Volkswagen Passat 8 is a knocking noise. This alternator sound on Volkswagen Passat 8 will most of the time appear when your engine is idling, it can be linked to voltage drops that could disturb the normal operation of electrical parts such as headlights for example. In general, it is a of both bearings of the alternator that is malfunctioning, to examine it, use a multimeter on the terminals of your automobile with the engine running and you must get 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 Passat 8 is tired and you should consider changing the bearing if it is the only reason otherwise the complete part.
I hear a grinding noise coming from the alternator of my Volkswagen Passat 8
If you are in the situation where the alternator of your Volkswagen Passat 8 generates grinding sounds, in this case you will have to look into it more seriously. This warning sign can testify as for the knocking sound of a tired bearing, however , generally, we often realize by looking more strongly that it is the accessory belt that is loosened or worn and is therefore the reason of it. In this case, we advise that you look for advice this content to find all the necessary information to solve an accessory belt noise on Volkswagen Passat 8.
I hear a loud noise from the alternator of my Volkswagen Passat 8
Finding out a loud noise from the alternator of your Volkswagen Passat 8 is quite common, in fact, it produces an audible sound when producing 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 check out this content to find other ways to solve problem of noises from front end on Volkswagen Passat 8.
