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 notice an alternator noise on Audi A2, you can already see yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to write this content to support you find the sources of alternator sounds. In this article, you will first see the role and functions of the alternator in your Audi A2 and then what the causes and solutions to alternator noise on Audi A2 may be.
Role and alternator operation Audi A2
Alternator role
Your alternator is an vital part of your Audi A2. Indeed, its mission is to give power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the goal 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
>
The alternator operates on an electrical principle that has been used for decades, the principle of copper coil wound around a magnet . This coil while rotating makes electricity. It is the engine itself that will give the energy needed by the alternator to generate the energy, via the accessory belt or alternator belt. When your Audi A2 engine stops, the battery takes over to give the car with energy.
What are the several alternator noises or sounds on my Audi A2 and what are the causes?
I notice a knocking noise coming from the alternator of my Audi A2
One of the typical noises of a tired alternator on Audi A2 is a knocking noise. This alternator sound on Audi A2 will generally show up 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 general, it is a of both bearings of the alternator that is defective, to verify 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 Audi A2 is tired and you should think about replacing the bearing if it is the only reason otherwise the whole part.
I notice a grinding noise coming from the alternator of my Audi A2
If you are in the case where the alternator of your Audi A2 causes grinding sounds, in this case you will have to look at it more seriously. This indicator can testify as for the knocking sound of a tired bearing, but in general, we generally notice by looking more closely that it is the accessory belt that is loosened or worn and is therefore the reason of it. In this case, we encourage that you consult this content to find all the necessary information to solve an accessory belt noise on Audi A2.
I notice a loud noise from the alternator of my Audi A2
Finding out a loud noise from the alternator of your Audi A2 is quite common, in fact, it produces an audible sound when creating the electrical pulses it generates. It is up to you to verify that the battery indicator light on your dashboard does not appear, 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 go to this content to find other ways to solve problem of noises from front end on Audi A2.
