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 A6, you can already see yourself breaking down, stuck waiting for 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 learn the role and functions of the alternator in your Audi A6 and then what the causes and solutions to alternator noise on Audi A6 may be.alternator-noise-audi-a6

Role and alternator operation Audi A6

Alternator role

Your alternator is an fundamental component of your Audi A6. Indeed, its goal is to provide 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 enough 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 concept of copper coil wound around a magnet . This coil while spinning generates electricity. It is the engine motor itself that will provide the energy needed by the alternator to generate the energy, via the accessory belt or alternator belt. When your Audi A6 engine stops, the battery takes over to provide the car with energy.

What are the different alternator noises or sounds on my Audi A6 and what are the causes?

I perceive a knocking noise coming from the alternator of my Audi A6

One of the characteristic noises of a tired alternator on Audi A6 is a knocking noise. This alternator sound on Audi A6 will most of the time appear 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. Most often, it is a of both bearings of the alternator that is faulty, to verify it, use a multimeter on the terminals of your car 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 Audi A6 is tired and you should consider changing the bearing if it is the only cause otherwise the whole part.

I notice a grinding noise coming from the alternator of my Audi A6

If you are in the situation where the alternator of your Audi A6 generates grinding sounds, in this circumstance you will have to look into it more seriously. This indicator can testify as for the knocking sound of a tired bearing, but generally, we often 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 suggest that you consult this article to find all the necessary information to solve an accessory belt noise on Audi A6.

I notice a loud noise from the alternator of my Audi A6

Hearing a loud noise from the alternator of your Audi A6 is quite common, in fact, it emits 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 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 suggest that you have a look this article to find other ways to solve problem of noises from front end on Audi A6.