Who hasn’t found himself in the situation where his car doesn’t start one morning on the way to work? If it never happened to you , perhaps you’ve already had that fear. So when you discover an alternator noise on Bmw Serie 5, 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 locate the sources of alternator sounds. In this article, you will first see the role and functions of the alternator in your Bmw Serie 5 and then what the causes and solutions to alternator noise on Bmw Serie 5 may be.
Role and alternator operation Bmw Serie 5
Alternator role
Your alternator is an essential part of your Bmw Serie 5. Indeed, its mission is to generate 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 enough energy reserve 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 principle of copper coil wound around a magnet . This coil while rotating makes electricity. It is the engine itself that will furnish the energy requested by the alternator to produce the energy, via the accessory belt or alternator belt. When your Bmw Serie 5 engine stops, the battery takes over to furnish the vehicle with energy.
What are the several alternator noises or sounds on my Bmw Serie 5 and what are the causes?
I notice a knocking noise caused by the alternator of my Bmw Serie 5
One of the typical noises of a tired alternator on Bmw Serie 5 is a knocking noise. This alternator sound on Bmw Serie 5 will generally show up when your engine is idling, it can be associated with 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 faulty, to check 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 5 is tired and you should consider swapping the bearing if it is the only cause otherwise the entire part.
I discover a grinding noise coming from the alternator of my Bmw Serie 5
If you are in the situation where the alternator of your Bmw Serie 5 generates grinding sounds, in this case you will have to look at it more seriously. This sign can testify as for the knocking sound of a tired bearing, however , in most cases, we generally 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 encourage that you consult this content to find all the necessary information to solve an accessory belt noise on Bmw Serie 5.
I discover a loud noise from the alternator of my Bmw Serie 5
Experiencing a loud noise from the alternator of your Bmw Serie 5 is quite typical, in fact, it emits an audible sound when producing the electrical pulses it generates. It is up to you to check 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 take a look at this content to find other ways to solve problem of noises from front end on Bmw Serie 5.
