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, perhaps you’ve already had that apprehension. So when you discover an alternator noise on Bmw Serie 3 F30, you can already imagine yourself breaking down, stuck awaiting the tow truck. That’s why our team has decided to produce this post to support you find the sources of alternator sounds. In this article, you will first discover the role and operation of the alternator in your Bmw Serie 3 F30 and then what the causes and solutions to alternator noise on Bmw Serie 3 F30 may be.
Role and alternator operation Bmw Serie 3 F30
Alternator role
Your alternator is an essential component of your Bmw Serie 3 F30. Indeed, its goal 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 car is in motion, to provide power to the car 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 functions on an electrical principle that has been used for decades, the concept of copper coil wound around a magnet . This coil while rotating creates electricity. It is the engine itself that will provide the energy requested by the alternator to generate the energy, via the accessory belt or alternator belt. When your Bmw Serie 3 F30 engine stops, the battery takes over to provide the car with energy.
What are the different alternator noises or sounds on my Bmw Serie 3 F30 and what are the causes?
I hear a knocking noise coming from the alternator of my Bmw Serie 3 F30
One of the typical noises of a tired alternator on Bmw Serie 3 F30 is a knocking noise. This alternator sound on Bmw Serie 3 F30 will most of the time happen when your engine is idling, it can be associated with voltage drops that could disturb the normal operation of electrical elements such as headlights for example. Often, it is a of both bearings of the alternator that is malfunctioning, to examine 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 recharging your battery well. If the value is lower, the alternator of your Bmw Serie 3 F30 is tired and you should consider swapping the bearing if it is the only cause otherwise the complete part.
I discover a grinding noise coming from the alternator of my Bmw Serie 3 F30
If you are in the case where the alternator of your Bmw Serie 3 F30 causes grinding sounds, in this circumstance 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 carefully 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 details to solve an accessory belt noise on Bmw Serie 3 F30.
I discover a loud noise from the alternator of my Bmw Serie 3 F30
Listening a loud noise from the alternator of your Bmw Serie 3 F30 is quite typical, in fact, it emits 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 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 suggest that you take a look at this article to find other ways to solve problem of noises from front end on Bmw Serie 3 F30.
