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 notice an alternator noise on Bmw Serie 3 E93, you can already see yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to write this post to help you locate the sources of alternator sounds. In this article, you will first discover the role and functions of the alternator in your Bmw Serie 3 E93 and then what the causes and solutions to alternator noise on Bmw Serie 3 E93 may be.
Role and alternator operation Bmw Serie 3 E93
Alternator role
Your alternator is an important component of your Bmw Serie 3 E93. Indeed, its mission is to provide power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the mission of charging the battery once the vehicle is in motion, to provide power to the vehicle 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 principle of copper coil wound around a magnet . This coil while spinning creates electricity. It is the engine itself that will furnish the energy needed by the alternator to create the energy, via the accessory belt or alternator belt. When your Bmw Serie 3 E93 engine stops, the battery takes over to furnish the vehicle with energy.
What are the different alternator noises or sounds on my Bmw Serie 3 E93 and what are the causes?
I find out a knocking noise coming from the alternator of my Bmw Serie 3 E93
One of the typical noises of a tired alternator on Bmw Serie 3 E93 is a knocking noise. This alternator sound on Bmw Serie 3 E93 will generally appear when your engine is idling, it can be associated with voltage drops that could affect the normal operation of electrical parts such as headlights for example. Often, it is a of both bearings of the alternator that is faulty, to verify it, use a multimeter on the terminals of your vehicle with the engine running and you must look for 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 Bmw Serie 3 E93 is tired and you should think about replacing the bearing if it is the only cause otherwise the complete part.
I notice a grinding noise coming from the alternator of my Bmw Serie 3 E93
If you are in the situation where the alternator of your Bmw Serie 3 E93 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 , in most cases, we often realize by looking more strongly 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 consult this content to find all the necessary information to solve an accessory belt noise on Bmw Serie 3 E93.
I notice a loud noise from the alternator of my Bmw Serie 3 E93
Listening a loud noise from the alternator of your Bmw Serie 3 E93 is quite regular, 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 advise that you have a look this content to find other ways to solve problem of noises from front end on Bmw Serie 3 E93.
